Document and Entity Information - shares	6 Months Ended
Document and Entity Information - shares	Jun. 30, 2016	Jul. 29, 2016
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2016
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q2
Trading Symbol	BNFT
Entity Registrant Name	Benefitfocus,Inc.
Entity Central Index Key	0001576169
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		29,652,487

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash flows from operating activities
Net loss	$ (24,356)	$ (32,933)
Adjustments to reconcile net loss to net cash and cash equivalents used in operating activities:
Depreciation and amortization	6,310	5,726
Stock-based compensation expense	9,183	4,617
Interest accrual on financing obligation	3,426	3,644
Loss on disposal or impairment of property and equipment	7	8
Provision for doubtful accounts	(22)
Changes in operating assets and liabilities:
Accounts receivable, net	(1,582)	(614)
Accrued interest on short-term investments	158	88
Prepaid expenses and other current assets	(72)	(1,523)
Other non-current assets	291	711
Accounts payable	(1,279)	1,427
Accrued expenses	741	648
Accrued compensation and benefits	(3,196)	1,868
Deferred revenue	(9,932)	(495)
Other non-current liabilities	87	189
Net cash and cash equivalents used in operating activities	(20,236)	(16,639)
Cash flows from investing activities
Purchases of short-term investments held to maturity	(2,004)	(51,111)
Proceeds from maturity of short-term investments held to maturity	31,225	8,067
Purchases of property and equipment	(4,964)	(8,054)
Net cash and cash equivalents provided by (used in) investing activities	24,257	(51,098)
Cash flows from financing activities
Draws on revolving line of credit	34,000	22,492
Payments on revolving line of credit	(25,000)	(34,903)
Proceeds from exercises of stock options	1,593	1,318
Proceeds from issuance of common stock and warrant, net of issuance costs		74,538
Payment of deferred financing costs and debt issuance costs		(566)
Remittance of taxes upon vesting of restricted stock units	(202)	(874)
Payments on financing and capital lease obligations	(5,557)	(4,918)
Net cash and cash equivalents provided by financing activities	4,834	57,087
Net increase (decrease) in cash and cash equivalents	8,855	(10,650)
Cash and cash equivalents, beginning of period	48,074	51,074
Cash and cash equivalents, end of period	56,929	40,424
Supplemental disclosure of non-cash investing and financing activities
Property and equipment purchases in accounts payable and accrued expenses	1,397	1,558
Property and equipment purchased with financing and capital lease obligations	2,099	236
Post contract support purchased with financing obligations	$ 1,182
Allocation of proceeds to deferred revenue from issuance of common stock based on relative selling price		$ 207

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 56,929	$ 48,074
Marketable securities	11,069	40,448
Accounts receivable, net	28,440	27,616
Accounts receivable, related party	2,862	2,082
Prepaid expenses and other current assets	6,147	5,725
Total current assets	105,447	123,945
Property and equipment, net	55,763	55,037
Intangible assets, net	536	665
Goodwill	1,634	1,634
Other non-current assets	1,377	838
Total assets	164,757	182,119
Current liabilities:
Accounts payable	7,445	7,953
Accrued expenses	10,269	10,449
Accrued compensation and benefits	17,488	20,684
Deferred revenue, current portion	33,530	37,858
Revolving line of credit, current portion	34,000	25,000
Financing and capital lease obligations, current portion	2,885	3,648
Total current liabilities	105,617	105,592
Deferred revenue, net of current portion	50,067	55,671
Revolving line of credit, net of current portion	5,246	5,246
Financing and capital lease obligations, net of current portion	33,095	31,183
Other non-current liabilities	2,523	2,436
Total liabilities	196,548	200,128
Commitments and contingencies
Stockholders' deficit:
Preferred stock, par value $0.001, 5,000,000 shares authorized, no shares issued and outstanding at June 30, 2016 and December 31, 2015
Common stock, par value $0.001, 50,000,000 shares authorized, 29,588,841 and 29,194,332 shares issued and outstanding at June 30, 2016 and December 31, 2015, respectively	30	29
Additional paid-in capital	320,877	310,304
Accumulated deficit	(352,698)	(328,342)
Total stockholders' deficit	(31,791)	(18,009)
Total liabilities and stockholders' deficit	$ 164,757	$ 182,119

Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2016	Dec. 31, 2015
Statement Of Financial Position [Abstract]
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	29,588,841	29,194,332
Common stock, shares outstanding	29,588,841	29,194,332

Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Income Statement [Abstract]
Revenue	$ 57,874	$ 42,708	$ 112,666	$ 85,377
Cost of revenue	29,750	23,640	59,047	46,103
Gross profit	28,124	19,068	53,619	39,274
Operating expenses:
Sales and marketing	14,761	15,804	28,335	31,279
Research and development	14,180	13,271	29,195	25,048
General and administrative	8,274	6,393	16,669	11,804
Total operating expenses	37,215	35,468	74,199	68,131
Loss from operations	(9,091)	(16,400)	(20,580)	(28,857)
Other income (expense):
Interest income	36	56	92	74
Interest expense on building lease financing obligations	(1,710)	(1,730)	(3,426)	(3,644)
Interest expense on other borrowings	(231)	(210)	(429)	(490)
Other (expense) income	(3)	5	(3)	4
Total other expense, net	(1,908)	(1,879)	(3,766)	(4,056)
Loss before income taxes	(10,999)	(18,279)	(24,346)	(32,913)
Income tax expense	5	5	10	20
Net loss	(11,004)	(18,284)	(24,356)	(32,933)
Comprehensive loss	$ (11,004)	$ (18,284)	$ (24,356)	$ (32,933)
Net loss per common share:
Basic and diluted	$ (0.37)	$ (0.64)	$ (0.83)	$ (1.19)
Weighted-average common shares outstanding:
Basic and diluted	29,459,341	28,633,992	29,336,270	27,694,935

Consolidated Statement of Changes in Stockholders' Deficit - 6 months ended Jun. 30, 2016 - USD ($) $ in Thousands	Total	Common Stock, $0.001 Par Value	Additional Paid-in Capital	Accumulated Deficit
Balance (in shares) at Dec. 31, 2015		29,194,332
Balance at Dec. 31, 2015	$ (18,009)	$ 29	$ 310,304	$ (328,342)
Exercise of stock options (in shares)		214,219
Exercise of stock options	1,593	$ 1	1,592
Issuance of common stock upon vesting of restricted stock units, net of shares surrendered for taxes	(202)		(202)
Issuance of common stock upon vesting of restricted stock units, net of shares surrendered for taxes (in shares)		180,290
Stock-based compensation expense	9,183		9,183
Net loss	(24,356)			(24,356)
Balance (in shares) at Jun. 30, 2016		29,588,841
Balance at Jun. 30, 2016	$ (31,791)	$ 30	$ 320,877	$ (352,698)

Organization and Description of Business	6 Months Ended
Organization and Description of Business	Jun. 30, 2016
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Organization and Description of Business	1. Organization and Description of Business Benefitfocus, Inc. (the “Company”) provides a leading cloud-based benefits management platform for consumers, employers, insurance carriers and brokers under a software-as-a-service (“SaaS”) model. The financial statements of the Company include the financial position and operations of its wholly owned subsidiaries, Benefitfocus.com, Inc., Benefit Informatics, Inc. and BenefitStore, Inc. Benefit Informatics, Inc. was dissolved on December 31, 2015.

Summary of Significant Accounting Policies	6 Months Ended
Summary of Significant Accounting Policies	Jun. 30, 2016
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	2. Summary of Significant Accounting Policies Principles of Consolidation These consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”). The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. We are not the primary beneficiary of, nor do we have a controlling financial interest in, any variable interest entity. Accordingly, we have not consolidated any variable interest entity. Interim Unaudited Consolidated Financial Information The accompanying unaudited consolidated financial statements and footnotes have been prepared in accordance with GAAP as contained in the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (the “Codification” or “ASC”) for interim financial information, and with Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, the interim financial information includes all adjustments of a normal recurring nature necessary for a fair presentation of the results of operations, financial position, changes in stockholders’ equity and cash flows. The results of operations for the three- and six-month periods ended June 30, 2016 are not necessarily indicative of the results for the full year or for any other future period. These unaudited consolidated financial statements should be read in conjunction with the audited financial statements and related footnotes for the year ended December 31, 2015 included in the Company’s Annual Report on Form 10-K filed with the United States Securities and Exchange Commission on February 25, 2016. Use of Estimates The preparation of financial statements in conformity with GAAP requires the Company to make estimates and assumptions that affect the reported amounts in the consolidated financial statements and accompanying notes. Such estimates include revenue recognition and the customer relationship period, allowances for doubtful accounts and returns, valuations of deferred income taxes, long-lived assets, warrants, capitalizable software development costs and the related amortization, stock-based compensation, the determination of the useful lives of assets and the recognition and impairment assessment of acquired intangibles and goodwill. Determination of these transactions and account balances are based on the Company’s estimates and judgments. These estimates are based on the Company’s knowledge of current events and actions it may undertake in the future as well as on various other assumptions that it believes to be reasonable. Actual results could differ materially from these estimates. Revenue and Deferred Revenue The Company derives the majority of its revenue from software services, which consist primarily of monthly subscription fees paid by customers for access to and usage of the Company’s cloud-based benefits software solutions for a specified contract term. The Company also derives revenue from professional services, which primarily includes fees related to the integration of customers’ systems with the Company’s platform, typically including discovery, configuration, deployment, testing, and training. The Company recognizes revenue when there is persuasive evidence of an arrangement, the service has been provided, the fees to be paid by the customer are fixed and determinable and collectability is reasonably assured. The Company considers delivery of its cloud-based software services has commenced once it has granted the customer access to its platform. The Company’s arrangements generally contain multiple elements comprised of software services and professional services. The Company evaluates each element in an arrangement to determine whether it represents a separate unit of accounting. An element constitutes a separate unit of accounting when the delivered item has standalone value and delivery of the undelivered element is probable and within the Company’s control. When multiple deliverables included in an arrangement are separable into different units of accounting, the arrangement consideration is allocated to the identified units of accounting based on their relative selling price. Multiple deliverable arrangements accounting guidance provides a hierarchy to use when determining the relative selling price for each unit of accounting. Vendor-specific objective evidence (“VSOE”) of selling price, based on the price at which the item is regularly sold by the vendor on a standalone basis, should be used if it exists. If VSOE is not available, third-party evidence (“TPE”) is used to establish the selling price if it exists. VSOE and TPE do not currently exist for any of the Company’s deliverables. Accordingly, for arrangements with multiple deliverables that can be separated into different units of accounting, the arrangement consideration is allocated to the separate units of accounting based on the Company’s best estimate of selling price. The amount of arrangement consideration allocated is limited by contingent revenues, if any. Effective July 1, 2015, the Company determined it had established standalone value for Benefitfocus Marketplace implementation services in the Employer segment because beginning then they could be sold separately from the software services. This was primarily due to the system integrators that have been trained and certified to perform these implementation services, the successful completion of an implementation by a trained system integrator, and the sale of several software subscription arrangements to customers in the Employer segment without the Company’s implementation services. Accordingly, revenues related to implementation services for the Benefitfocus Marketplace solution in the Employer segment delivered after July 1, 2015 are recognized separately from the revenues earned from the Employer software subscription services. Revenues related to such implementation services are recognized at the time that the professional services have been completed and the related software services have commenced. Prior to July 1, 2015, the Company did not have standalone value for implementation services related to the Benefitfocus Marketplace solution as the Company had historically performed these services to support the customers’ implementation of this solution. Revenue from implementation services with standalone value was $368 and $642 for the three and six month periods ended June 30, 2016, respectively. Certain of the Company’s other professional services, including implementation services related to the Carrier segment, are not sold separately from the software services and there is no alternative use for them. As such, the Company has determined that those professional services do not have standalone value. Accordingly, software services and professional services are combined and recognized as a single unit of accounting. The Company generally recognizes software services fees monthly based on the number of employees covered by the relevant benefits plans at contracted rates for a specified period of time, once the criteria for revenue recognition described above have been satisfied. The Company defers recognition of revenue for fees from professional services that do not have standalone value and begins recognizing such revenue once the services are delivered and the related software services have commenced, ratably over the longer of the contract term or the estimated expected life of the customer relationship. Costs incurred by the Company in connection with providing such professional services are charged to expense as incurred and are included in “Cost of revenue.” Concentrations of Credit Risk The Company’s financial instruments that are exposed to concentrations of credit risk consist primarily of cash equivalents, marketable securities and accounts receivable. All of the Company’s cash and cash equivalents are held at financial institutions that management believes to be of high credit quality. The bank deposits of the Company might, at times, exceed federally insured limits and are generally uninsured and uncollateralized. The Company has not experienced any losses on cash and cash equivalents to date. To manage credit risk related to marketable securities, the Company invests in various types of highly rated corporate bonds, commercial paper, and various United States backed securities with maturities of less than two years. The weighted average maturity of the portfolio of investments must not exceed nine months, per the Company’s investment policy. To manage accounts receivable risk, the Company evaluates the creditworthiness of its customers and maintains an allowance for doubtful accounts. Accounts receivable are unsecured and derived from revenue earned from customers located in the United States. One customer, North Carolina State Health Plan, represented 22.2% of the total accounts receivable at December 31, 2015 and represented 10.4% of the total revenue for the three-month period ended June 30, 2016. Another customer, Aetna, represented 10.0% of total revenue for the three- and six-month periods ended June 30, 2015. Mercer, a related party, represented 11.6% and 10.9% of total revenue for the three- and six-month periods ended June 30, 2016, respectively. For more information regarding Mercer revenue, please see Note 11. Accounts Receivable and Allowance for Doubtful Accounts and Returns Accounts receivable are stated at realizable value, net of allowances for doubtful accounts and returns. The Company utilizes the allowance method to provide for doubtful accounts based on management’s evaluation of the collectability of amounts due, and other relevant factors. Bad debt expense is recorded in general and administrative expense on the consolidated statements of operations and comprehensive loss. The Company’s estimate is based on historical collection experience and a review of the current status of accounts receivable. Historically, actual write-offs for uncollectible accounts have not significantly differed from the Company’s estimates. The Company removes recorded receivables and the associated allowances when they are deemed permanently uncollectible. However, if bad debts are higher than expected future write-offs will be greater than the Company’s estimates. The allowance for doubtful accounts was $10 and $32 as of June 30, 2016 and December 31, 2015, respectively. The allowances for returns are accounted for as reductions of revenue and are estimated based on the Company’s periodic assessment of historical experience and trends. The Company considers factors such as the time lag since the initiation of revenue recognition, historical reasons for adjustments, new customer volume, complexity of billing arrangements, timing of software availability, and past due customer billings. The allowance for returns was $2,782 and $2,553 as of June 30, 2016 and December 31, 2015, respectively. Capitalized Software Development Costs The Company capitalizes certain costs related to its software developed or obtained for internal use. Costs related to preliminary project activities and post-implementation activities are expensed as incurred. Internal and external costs incurred during the application development stage, including upgrades and enhancements representing modifications that will result in significant additional functionality, are capitalized. Software maintenance and training costs are expensed as incurred. Capitalized costs are recorded as part of property and equipment and are amortized on a straight-line basis to cost of revenue over the software’s estimated useful life, which is three years. The Company evaluates these assets for impairment whenever events or changes in circumstances occur that could impact the recoverability of these assets. In the three months ended June 30, 2016 and 2015, the Company capitalized software development costs of $1,501 and $506, respectively, and amortized capitalized software development costs of $693 and $671, respectively. In the six months ended June 30, 2016 and 2015, respectively, the Company capitalized software development costs of $2,985 and $1,051, and amortized capitalized software development costs of $1,319 and $1,347, respectively. The net book value of capitalized software development costs was $5,715 and $4,049 at June 30, 2016 and December 31, 2015, respectively. Comprehensive Loss The Company’s net loss equals comprehensive loss for all periods presented. Accounting Standards Not Yet Adopted In June 2016, the FASB issued Accounting Standards Update ("ASU") No. 2016-13: Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. The purpose of this ASU is to require a financial asset measured at amortized cost basis to be presented at the net amount expected to be collected. Credit losses relating to available-for-sale debt securities should be recorded through an allowance for credit losses. This ASU is effective for interim and annual reporting periods beginning after December 15, 2019. The Company is currently evaluating the impact of this guidance on its consolidated financial statements. In March 2016, the FASB issued ASU No. 2016-09: Compensation - Stock Compensation (Topic 718) - Improvements to Employee Share-Based Payment Accounting. The amendments in this update simplify several aspects of the accounting for employee share-based payment transactions, including the accounting for income taxes, forfeitures and statutory tax withholding requirements, as well as classification in the statement of cash flows. ASU 2016-09 will be effective for the Company beginning January 1, 2017, but early adoption is permitted. The Company is currently evaluating the impact of this update on the consolidated financial statements. In February 2016, the FASB issued ASU No. 2016-02: Leases (Topic 842). The amendments in this update require lessees, among other things, to recognize lease assets and lease liabilities on the balance sheet for those leases classified as operating leases under previous authoritative guidance. This update also introduces new disclosure requirements for leasing arrangements. ASU 2016-02 will be effective for the Company beginning January 1, 2019, but early adoption is permitted. The Company is currently evaluating the impact of this update on the consolidated financial statements. In April 2015, the FASB issued ASU No. 2015-05: Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40) - Customer's Accounting for Fees Paid in a Cloud Computing Arrangement. The amendments in this update provide guidance to customers about whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, the update specifies that the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. The update further specifies that the customer should account for a cloud computing arrangement as a service contract if the arrangement does not include a software license. The Company adopted ASU 2015-05 as of January 1, 2016 on a prospective basis. The adoption of this standard did not materially impact the Company’s consolidated financial statements. In April 2015, the FASB issued ASU No. 2015-03: Interest - Imputation of Interest (Subtopic 835-30) - Simplifying the Presentation of Debt Issuance Costs. The amendments in this ASU require that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The Company adopted this standard as of January 1, 2016. The adoption of this standard did not materially impact the Company’s consolidated financial statements. In August 2014, the FASB issued ASU No. 2014-15, Presentation of Financial Statements - Going Concern (Subtopic 205-40). ASU 2015-11 provides guidance in GAAP about management’s responsibility to evaluate whether there is substantial doubt about an entity’s ability to continue as a going concern and to provide related footnote disclosures. This guidance is effective for the Company beginning January 1, 2017. The Company does not believe the adoption of this standard will have a material effect on its consolidated financial statements. In May 2014, the FASB issued ASU No. 2014-09: Revenue from Contracts with Customers (Topic 606), which amends the revenue recognition requirements in the FASB Accounting Standards Codification, and various clarifying updates. This statement requires that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The statement shall be applied using one of two methods: retrospectively to each prior reporting period presented, or retrospectively with the cumulative effect of initially applying this statement recognized at the date of initial application. The Company has not yet determined which method it will apply. This guidance will be effective for the Company beginning January 1, 2018, with an option to early adopt. The Company is currently evaluating the impact of this guidance on its consolidated financial position and results of operations.

Net Loss Per Common Share

6 Months Ended

Jun. 30, 2016

Earnings Per Share [Abstract]

Net Loss Per Common Share

3. Net Loss Per Common Share

Diluted loss per common share is the same as basic loss per common share for all periods presented because the effects of potentially dilutive items were anti-dilutive given the Company’s net loss. The following common share equivalent securities have been excluded from the calculation of weighted average common shares outstanding because the effect is anti-dilutive for the periods presented:

	Three Months Ended June 30,				Six Months Ended June 30,
Anti-Dilutive Common Share Equivalents	2016		2015		2016		2015
Restricted stock units		1,474,403		998,889		1,474,403		998,889
Stock options		1,458,140		2,134,685		1,458,140		2,134,685
Warrant to purchase common stock		580,813		580,813		580,813		580,813
Total anti-dilutive common share equivalents		3,513,356		3,714,387		3,513,356		3,714,387

Basic and diluted net loss per common share is calculated as follows:

	Three Months Ended June 30,						Six Months Ended June 30,
	2016			2015			2016			2015
Numerator:
Net loss	$	(11,004	)	$	(18,284	)	$	(24,356	)	$	(32,933	)
Net loss attributable to common stockholders	$	(11,004	)	$	(18,284	)	$	(24,356	)	$	(32,933	)
Denominator:
Weighted-average common shares outstanding, basic and diluted		29,459,341			28,633,992			29,336,270			27,694,935
Net loss per common share, basic and diluted	$	(0.37	)	$	(0.64	)	$	(0.83	)	$	(1.19	)

Fair Value Measurement

6 Months Ended

Jun. 30, 2016

Fair Value Disclosures [Abstract]

Fair Value Measurement

4. Fair Value Measurement

The carrying amounts of certain of the Company’s financial instruments, including cash and cash equivalents, net accounts receivable, accounts payable and other accrued liabilities, and accrued compensation and benefits, approximate fair value due to their short-term nature. The carrying value of the Company’s financing obligations and revolving line of credit approximates fair value, considering the borrowing rates currently available to the Company with similar terms and credit risks.

The Company uses a three-tier fair value hierarchy to classify and disclose all assets and liabilities measured at fair value on a recurring basis, as well as assets and liabilities measured at fair value on a non-recurring basis, in periods subsequent to their initial measurement. The hierarchy requires the Company to use observable inputs when available, and to minimize the use of unobservable inputs when determining fair value. The three tiers are defined as follows:

Level 1.

Quoted prices (unadjusted) in active markets for identical assets or liabilities.

Level 2.

Other inputs that are directly or indirectly observable in the marketplace.

Level 3.

Unobservable inputs for which there is little or no market data, which require the Company to develop its own assumptions.

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The Company evaluates its financial assets and liabilities subject to fair value measurements on a recurring basis to determine the appropriate level to classify them for each reporting period. This determination requires significant judgments to be made.

The following tables present information about the Company’s assets and liabilities that are measured at fair value on a recurring basis using the above categories, as of June 30, 2016 and December 31, 2015.

	June 30, 2016
Description	Level 1		Level 2		Level 3		Total
Cash Equivalents:
Money market mutual funds (1)	$	53,626	$	—	$	—	$	53,626
Total assets	$	53,626	$	—	$	—	$	53,626

	December 31, 2015
Description	Level 1		Level 2		Level 3		Total
Cash Equivalents:
Money market mutual funds (1)	$	46,905	$	—	$	—	$	46,905
Total assets	$	46,905	$	—	$	—	$	46,905

(1)

Money market funds are classified as cash equivalents in the Company’s unaudited consolidated balance sheets. As short-term, highly liquid investments readily convertible to known amounts of cash with remaining maturities of three months or less at the time of purchase, the Company’s cash equivalent money market funds have carrying values that approximate fair value.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Marketable Securities

6 Months Ended

Jun. 30, 2016

Investments Debt And Equity Securities [Abstract]

Marketable Securities

5. Marketable Securities

Marketable securities consist of corporate bonds, commercial paper, U.S. Treasury and agency bonds and are classified as held-to-maturity. Investments held in marketable securities had contractual maturities of between 1 and 7 months as of June 30, 2016. The following presents information about the Company’s marketable securities as of:

	June 30, 2016		December 31, 2015
Aggregate cost basis and net carrying amount	$	11,069	$	40,448
Gross unrealized holding gains		6		1
Gross unrealized holding losses		-		(26	)
Aggregate fair value determined by Level 2 inputs	$	11,075	$	40,423

The following table presents information about the Company’s investments that were in an unrealized loss position and for which an other-than-temporary impairment has not been recognized in earnings as of:

June 30, 2016

December 31, 2015

Aggregate fair value of investments with

unrealized losses (1)

2,025

27,070

Aggregate amount of unrealized losses

(26

)

(1)	Investments have been in a continuous loss position for less than 12 months.

- Definition

The entire disclosure for investments in certain debt and equity securities.

+ References + Details

Revolving Line of Credit	6 Months Ended
Revolving Line of Credit	Jun. 30, 2016
Debt Disclosure [Abstract]
Revolving Line of Credit	6. Revolving Line of Credit As of June 30, 2016 and December 31, 2015, the amount outstanding under the Company’s revolving line of credit was $39,246 and $30,246, respectively. The amount available to borrow, adjusted by the borrowing base limit, was $20,754 and the interest rate was 4.5% as of June 30, 2016. In January 2016, the Company repaid $25,000 of the amount outstanding under this line of credit. In June 2016, the Company borrowed $34,000 for general operating purposes.

Stock-based Compensation	6 Months Ended
Stock-based Compensation	Jun. 30, 2016
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock-based Compensation	7. Stock-based Compensation Restricted Stock Units During January 2016, the Company granted 31,233 restricted stock units to employees with an aggregate grant date fair value of $1,091. During April 2016, the Company granted 425,183 restricted stock units to employees with an aggregate grant date fair value of $13,776. These restricted stock units vest in equal annual installments generally over 4 years from the grant date. The Company amortizes the fair value of the stock subject to the restricted stock units at the time of grant on a straight-line basis over the period of vesting. The Company recognizes the income tax benefits resulting from vesting of restricted stock units in the period they vest, to the extent the compensation expense has been recognized. During the six months ended June 30, 2016, the Company granted 242,331 performance restricted stock units to management with an aggregate grant date fair value of $7,490. Vesting is contingent upon meeting various financial targets to support growth initiatives through December 31, 2017. The actual number of shares issued upon vesting could range from 0% to 100% of the number granted. During March 2016, the Company granted 26,376 performance restricted stock units to management with an aggregate grant date fair value of $875. The awards were granted in lieu of a portion of the target cash bonus that would otherwise be payable under the Company’s Management Incentive Bonus Program for the calendar year ended 2016. The awards vest upon achievement of annual financial targets for 2016. The actual number of shares issued upon vesting could range from 0% to 100% of the number granted.

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

+ References + Details

Stockholders' Deficit

6 Months Ended

Jun. 30, 2016

Equity [Abstract]

Stockholders' Deficit

8. Stockholders’ Deficit

Common Stock

The holders of common stock are entitled to one vote for each share. The voting, dividend and liquidation rights of the holders of common stock are subject to and qualified by the rights, powers and preferences of the holders of preferred stock.

At the Company’s annual stockholder meeting held in June 2016, the Company’s stockholders approved the Benefitfocus, Inc. 2016 Employee Stock Purchase Plan (“ESPP”) pursuant to which 150,000 shares of the Company’s common stock is available for purchase by its employees (and employees of its subsidiaries) who meet certain criteria. The Company’s board of directors approved the ESPP in March 2016. Under the ESPP, eligible employees may purchase the Company’s common stock through accumulated payroll deductions. Options to purchase shares are granted twice yearly on or about January 1 and July 1 and exercisable on or about the succeeding June 30 and December 31, respectively, of each year. Shares are purchased at purchase prices equal to 95% of the fair market value of the Company’s common stock at the purchase date. No participant may purchase more than $12,500 worth of the Company’s common stock in a six-month offering period. The ESPP's initial purchase period began in July 2016. Accordingly, no shares of the Company common stock had been purchased or distributed pursuant to the ESPP as of June 30, 2016.

At June 30, 2016, the Company had reserved a total of 4,574,415 of its authorized 50,000,000 shares of common stock for future issuance as follows:

Outstanding stock options			1,458,140
Restricted stock units			1,474,403
Available for future issuance under stock option plans			911,059
Available for future issuance under employee stock purchase plan			150,000
Warrant to purchase common stock			580,813
Total common shares reserved for future issuance			4,574,415

- Definition

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

+ References

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+ Details

Income Taxes	6 Months Ended
Income Taxes	Jun. 30, 2016
Income Tax Disclosure [Abstract]
Income Taxes	9. Income Taxes The Company’s effective federal tax rate for the three and six months ended June 30, 2016 was less than one percent, primarily as a result of estimated tax losses for the fiscal year offset by the increase in the valuation allowance in the net operating loss carryforwards. Current tax expense relates to estimated state income taxes.

Segments and Geographic Information

6 Months Ended

Jun. 30, 2016

Segment Reporting [Abstract]

Segments and Geographic Information

10. Segments and Geographic Information

Operating segments are defined as components of an enterprise for which discrete financial information is available that is evaluated regularly by the chief operating decision maker (“CODM”) for purposes of allocating resources and evaluating financial performance. The Company’s CODM, the Chief Executive Officer, reviews financial information presented on a consolidated basis, accompanied by information about operating segments, for purposes of allocating resources and evaluating financial performance.

The Company’s reportable segments are based on the type of customer. The Company determined its operating segments to be: Employer, which derives substantially all of its revenue from customers that use the Company’s services for the provision of benefits to their employees, and administrators acting on behalf of employers; and Carrier, which derives substantially all of its revenue from insurance companies that provide coverage at their own risk.

Segments are evaluated based on gross profit. The Company does not allocate interest income, interest expense or income tax expense by segment. Accordingly, the Company does not report such information. Additionally, Employer and Carrier segments share the majority of the Company’s assets. Therefore, no segment asset information is reported.

	Three Months Ended June 30,				Six Months Ended June 30,
	2016		2015		2016		2015
Revenue from external customers by segment:
Employer	$	36,261	$	20,779	$	68,454	$	41,677
Carrier		21,613		21,929		44,212		43,700
Total net revenue from external customers	$	57,874	$	42,708	$	112,666	$	85,377
Depreciation and amortization by segment:
Employer	$	1,975	$	1,450	$	3,767	$	2,792
Carrier		1,292		1,453		2,543		2,934
Total depreciation and amortization	$	3,267	$	2,903	$	6,310	$	5,726
Gross profit by segment:
Employer	$	15,269	$	7,571	$	27,551	$	16,125
Carrier		12,855		11,497		26,068		23,149
Total gross profit	$	28,124	$	19,068	$	53,619	$	39,274

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

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+ Details

Related Parties	6 Months Ended
Related Parties	Jun. 30, 2016
Related Party Transactions [Abstract]
Related Parties	11. Related Parties Related Party Leasing Arrangements The Company leases the buildings and office space on its Charleston, South Carolina campus from entities with which two of the Company’s directors, significant stockholders, and executives are affiliated. The leasing arrangements have 15-year terms which started in 2006, 2009 and 2015. The Company has an option to renew the 2006 and 2009 arrangements for one five-year period and an option to renew the 2015 arrangement for up to five one-year periods. The arrangements provide for 3.0% fixed annual rent increases. Payments under these agreements were $2,286 and $2,220 for the three months ended June 30, 2016 and 2015, respectively and $5,666 and $7,172 for the six months ended June 30, 2016 and 2015, respectively. Amounts due to the related parties were $1,262 and $1,116 as of June 30, 2016 and December 31, 2015, respectively. As of June 30, 2016 and December 31, 2015 amounts due to the related parties were recorded in “Accrued expenses.” Other Related Party Expenses The Company utilizes the services of three companies that are owned and controlled by a Company director, significant stockholder, and executive. The companies provide private air transportation and construction project management services. Expenses related to these companies were $11 and $28 for the three months ended June 30, 2016 and 2015 and $37 and $82 for the six months ended June 30, 2016 and 2015, respectively. No amounts were due to these companies as of June 30, 2016 and December 31, 2015. Related Party Revenues Mercer became a related party when the Company sold it over 10% beneficial ownership of the Company’s outstanding common stock in February 2015. Revenue from Mercer was $6,712 and $3,501 for the three months ended June 30, 2016 and 2015, respectively and $12,258 and $4,615 for the six months ended June 30, 2016 and 2015, respectively, from the time they became a related party and was reflected in “Revenues,” within the accompanying statements of operations. The amounts due from Mercer were $2,862 and $2,082 as of June 30, 2016 and December 31, 2015, respectively. The amount of deferred revenue associated with Mercer was $7,863 and $9,128 as of June 30, 2016 and December 31, 2015, respectively, and was reflected in the balances of deferred revenue in the consolidated balance sheets.

Subsequent Events	6 Months Ended
Subsequent Events	Jun. 30, 2016
Subsequent Events [Abstract]
Subsequent Events	12. Subsequent Events Restricted Stock Units During July 2016, the Company granted 31,391 restricted stock units to employees with an aggregate grant date fair value of $1,181. Generally, these restricted stock units vest in equal annual installments over 4 years from the grant date. The Company amortizes the fair value of the stock subject to the restricted stock units at the time of grant on a straight-line basis over the period of vesting. The Company recognizes the income tax benefits resulting from vesting of restricted stock units in the period they vest, to the extent the compensation expense has been recognized. Common Stock During July 2016, employees exercised stock options and restricted stock units vested resulting in the issuance of 63,646 shares. Revolving Line of Credit In July 2016, the Company repaid $34,000 under its revolving line of credit.

Summary of Significant Accounting Policies (Policies)	6 Months Ended
Summary of Significant Accounting Policies (Policies)	Jun. 30, 2016
Accounting Policies [Abstract]
Principles of Consolidation	Principles of Consolidation These consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”). The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. We are not the primary beneficiary of, nor do we have a controlling financial interest in, any variable interest entity. Accordingly, we have not consolidated any variable interest entity.
Interim Unaudited Consolidated Financial Information	Interim Unaudited Consolidated Financial Information The accompanying unaudited consolidated financial statements and footnotes have been prepared in accordance with GAAP as contained in the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (the “Codification” or “ASC”) for interim financial information, and with Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, the interim financial information includes all adjustments of a normal recurring nature necessary for a fair presentation of the results of operations, financial position, changes in stockholders’ equity and cash flows. The results of operations for the three- and six-month periods ended June 30, 2016 are not necessarily indicative of the results for the full year or for any other future period. These unaudited consolidated financial statements should be read in conjunction with the audited financial statements and related footnotes for the year ended December 31, 2015 included in the Company’s Annual Report on Form 10-K filed with the United States Securities and Exchange Commission on February 25, 2016.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with GAAP requires the Company to make estimates and assumptions that affect the reported amounts in the consolidated financial statements and accompanying notes. Such estimates include revenue recognition and the customer relationship period, allowances for doubtful accounts and returns, valuations of deferred income taxes, long-lived assets, warrants, capitalizable software development costs and the related amortization, stock-based compensation, the determination of the useful lives of assets and the recognition and impairment assessment of acquired intangibles and goodwill. Determination of these transactions and account balances are based on the Company’s estimates and judgments. These estimates are based on the Company’s knowledge of current events and actions it may undertake in the future as well as on various other assumptions that it believes to be reasonable. Actual results could differ materially from these estimates.
Revenue and Deferred Revenue	Revenue and Deferred Revenue The Company derives the majority of its revenue from software services, which consist primarily of monthly subscription fees paid by customers for access to and usage of the Company’s cloud-based benefits software solutions for a specified contract term. The Company also derives revenue from professional services, which primarily includes fees related to the integration of customers’ systems with the Company’s platform, typically including discovery, configuration, deployment, testing, and training. The Company recognizes revenue when there is persuasive evidence of an arrangement, the service has been provided, the fees to be paid by the customer are fixed and determinable and collectability is reasonably assured. The Company considers delivery of its cloud-based software services has commenced once it has granted the customer access to its platform. The Company’s arrangements generally contain multiple elements comprised of software services and professional services. The Company evaluates each element in an arrangement to determine whether it represents a separate unit of accounting. An element constitutes a separate unit of accounting when the delivered item has standalone value and delivery of the undelivered element is probable and within the Company’s control. When multiple deliverables included in an arrangement are separable into different units of accounting, the arrangement consideration is allocated to the identified units of accounting based on their relative selling price. Multiple deliverable arrangements accounting guidance provides a hierarchy to use when determining the relative selling price for each unit of accounting. Vendor-specific objective evidence (“VSOE”) of selling price, based on the price at which the item is regularly sold by the vendor on a standalone basis, should be used if it exists. If VSOE is not available, third-party evidence (“TPE”) is used to establish the selling price if it exists. VSOE and TPE do not currently exist for any of the Company’s deliverables. Accordingly, for arrangements with multiple deliverables that can be separated into different units of accounting, the arrangement consideration is allocated to the separate units of accounting based on the Company’s best estimate of selling price. The amount of arrangement consideration allocated is limited by contingent revenues, if any. Effective July 1, 2015, the Company determined it had established standalone value for Benefitfocus Marketplace implementation services in the Employer segment because beginning then they could be sold separately from the software services. This was primarily due to the system integrators that have been trained and certified to perform these implementation services, the successful completion of an implementation by a trained system integrator, and the sale of several software subscription arrangements to customers in the Employer segment without the Company’s implementation services. Accordingly, revenues related to implementation services for the Benefitfocus Marketplace solution in the Employer segment delivered after July 1, 2015 are recognized separately from the revenues earned from the Employer software subscription services. Revenues related to such implementation services are recognized at the time that the professional services have been completed and the related software services have commenced. Prior to July 1, 2015, the Company did not have standalone value for implementation services related to the Benefitfocus Marketplace solution as the Company had historically performed these services to support the customers’ implementation of this solution. Revenue from implementation services with standalone value was $368 and $642 for the three and six month periods ended June 30, 2016, respectively. Certain of the Company’s other professional services, including implementation services related to the Carrier segment, are not sold separately from the software services and there is no alternative use for them. As such, the Company has determined that those professional services do not have standalone value. Accordingly, software services and professional services are combined and recognized as a single unit of accounting. The Company generally recognizes software services fees monthly based on the number of employees covered by the relevant benefits plans at contracted rates for a specified period of time, once the criteria for revenue recognition described above have been satisfied. The Company defers recognition of revenue for fees from professional services that do not have standalone value and begins recognizing such revenue once the services are delivered and the related software services have commenced, ratably over the longer of the contract term or the estimated expected life of the customer relationship. Costs incurred by the Company in connection with providing such professional services are charged to expense as incurred and are included in “Cost of revenue.”
Concentrations of Credit Risk	Concentrations of Credit Risk The Company’s financial instruments that are exposed to concentrations of credit risk consist primarily of cash equivalents, marketable securities and accounts receivable. All of the Company’s cash and cash equivalents are held at financial institutions that management believes to be of high credit quality. The bank deposits of the Company might, at times, exceed federally insured limits and are generally uninsured and uncollateralized. The Company has not experienced any losses on cash and cash equivalents to date. To manage credit risk related to marketable securities, the Company invests in various types of highly rated corporate bonds, commercial paper, and various United States backed securities with maturities of less than two years. The weighted average maturity of the portfolio of investments must not exceed nine months, per the Company’s investment policy. To manage accounts receivable risk, the Company evaluates the creditworthiness of its customers and maintains an allowance for doubtful accounts. Accounts receivable are unsecured and derived from revenue earned from customers located in the United States. One customer, North Carolina State Health Plan, represented 22.2% of the total accounts receivable at December 31, 2015 and represented 10.4% of the total revenue for the three-month period ended June 30, 2016. Another customer, Aetna, represented 10.0% of total revenue for the three- and six-month periods ended June 30, 2015. Mercer, a related party, represented 11.6% and 10.9% of total revenue for the three- and six-month periods ended June 30, 2016, respectively. For more information regarding Mercer revenue, please see Note 11.
Accounts Receivable and Allowance for Doubtful Accounts and Returns	Accounts Receivable and Allowance for Doubtful Accounts and Returns Accounts receivable are stated at realizable value, net of allowances for doubtful accounts and returns. The Company utilizes the allowance method to provide for doubtful accounts based on management’s evaluation of the collectability of amounts due, and other relevant factors. Bad debt expense is recorded in general and administrative expense on the consolidated statements of operations and comprehensive loss. The Company’s estimate is based on historical collection experience and a review of the current status of accounts receivable. Historically, actual write-offs for uncollectible accounts have not significantly differed from the Company’s estimates. The Company removes recorded receivables and the associated allowances when they are deemed permanently uncollectible. However, if bad debts are higher than expected future write-offs will be greater than the Company’s estimates. The allowance for doubtful accounts was $10 and $32 as of June 30, 2016 and December 31, 2015, respectively. The allowances for returns are accounted for as reductions of revenue and are estimated based on the Company’s periodic assessment of historical experience and trends. The Company considers factors such as the time lag since the initiation of revenue recognition, historical reasons for adjustments, new customer volume, complexity of billing arrangements, timing of software availability, and past due customer billings. The allowance for returns was $2,782 and $2,553 as of June 30, 2016 and December 31, 2015, respectively.
Capitalized Software Development Costs	Capitalized Software Development Costs The Company capitalizes certain costs related to its software developed or obtained for internal use. Costs related to preliminary project activities and post-implementation activities are expensed as incurred. Internal and external costs incurred during the application development stage, including upgrades and enhancements representing modifications that will result in significant additional functionality, are capitalized. Software maintenance and training costs are expensed as incurred. Capitalized costs are recorded as part of property and equipment and are amortized on a straight-line basis to cost of revenue over the software’s estimated useful life, which is three years. The Company evaluates these assets for impairment whenever events or changes in circumstances occur that could impact the recoverability of these assets. In the three months ended June 30, 2016 and 2015, the Company capitalized software development costs of $1,501 and $506, respectively, and amortized capitalized software development costs of $693 and $671, respectively. In the six months ended June 30, 2016 and 2015, respectively, the Company capitalized software development costs of $2,985 and $1,051, and amortized capitalized software development costs of $1,319 and $1,347, respectively. The net book value of capitalized software development costs was $5,715 and $4,049 at June 30, 2016 and December 31, 2015, respectively.
Comprehensive Loss	Comprehensive Loss The Company’s net loss equals comprehensive loss for all periods presented.
Accounting Standards Not Yet Adopted	Accounting Standards Not Yet Adopted In June 2016, the FASB issued Accounting Standards Update ("ASU") No. 2016-13: Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. The purpose of this ASU is to require a financial asset measured at amortized cost basis to be presented at the net amount expected to be collected. Credit losses relating to available-for-sale debt securities should be recorded through an allowance for credit losses. This ASU is effective for interim and annual reporting periods beginning after December 15, 2019. The Company is currently evaluating the impact of this guidance on its consolidated financial statements. In March 2016, the FASB issued ASU No. 2016-09: Compensation - Stock Compensation (Topic 718) - Improvements to Employee Share-Based Payment Accounting. The amendments in this update simplify several aspects of the accounting for employee share-based payment transactions, including the accounting for income taxes, forfeitures and statutory tax withholding requirements, as well as classification in the statement of cash flows. ASU 2016-09 will be effective for the Company beginning January 1, 2017, but early adoption is permitted. The Company is currently evaluating the impact of this update on the consolidated financial statements. In February 2016, the FASB issued ASU No. 2016-02: Leases (Topic 842). The amendments in this update require lessees, among other things, to recognize lease assets and lease liabilities on the balance sheet for those leases classified as operating leases under previous authoritative guidance. This update also introduces new disclosure requirements for leasing arrangements. ASU 2016-02 will be effective for the Company beginning January 1, 2019, but early adoption is permitted. The Company is currently evaluating the impact of this update on the consolidated financial statements. In April 2015, the FASB issued ASU No. 2015-05: Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40) - Customer's Accounting for Fees Paid in a Cloud Computing Arrangement. The amendments in this update provide guidance to customers about whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, the update specifies that the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. The update further specifies that the customer should account for a cloud computing arrangement as a service contract if the arrangement does not include a software license. The Company adopted ASU 2015-05 as of January 1, 2016 on a prospective basis. The adoption of this standard did not materially impact the Company’s consolidated financial statements. In April 2015, the FASB issued ASU No. 2015-03: Interest - Imputation of Interest (Subtopic 835-30) - Simplifying the Presentation of Debt Issuance Costs. The amendments in this ASU require that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The Company adopted this standard as of January 1, 2016. The adoption of this standard did not materially impact the Company’s consolidated financial statements. In August 2014, the FASB issued ASU No. 2014-15, Presentation of Financial Statements - Going Concern (Subtopic 205-40). ASU 2015-11 provides guidance in GAAP about management’s responsibility to evaluate whether there is substantial doubt about an entity’s ability to continue as a going concern and to provide related footnote disclosures. This guidance is effective for the Company beginning January 1, 2017. The Company does not believe the adoption of this standard will have a material effect on its consolidated financial statements. In May 2014, the FASB issued ASU No. 2014-09: Revenue from Contracts with Customers (Topic 606), which amends the revenue recognition requirements in the FASB Accounting Standards Codification, and various clarifying updates. This statement requires that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The statement shall be applied using one of two methods: retrospectively to each prior reporting period presented, or retrospectively with the cumulative effect of initially applying this statement recognized at the date of initial application. The Company has not yet determined which method it will apply. This guidance will be effective for the Company beginning January 1, 2018, with an option to early adopt. The Company is currently evaluating the impact of this guidance on its consolidated financial position and results of operations.

Net Loss Per Common Share (Tables)

6 Months Ended

Jun. 30, 2016

Earnings Per Share [Abstract]

Common Share Equivalent Securities Excluded from Calculation of Weighted-Average Common Shares Outstanding

The following common share equivalent securities have been excluded from the calculation of weighted average common shares outstanding because the effect is anti-dilutive for the periods presented:

	Three Months Ended June 30,				Six Months Ended June 30,
Anti-Dilutive Common Share Equivalents	2016		2015		2016		2015
Restricted stock units		1,474,403		998,889		1,474,403		998,889
Stock options		1,458,140		2,134,685		1,458,140		2,134,685
Warrant to purchase common stock		580,813		580,813		580,813		580,813
Total anti-dilutive common share equivalents		3,513,356		3,714,387		3,513,356		3,714,387

Basic and Diluted Net Loss per Common Share

Basic and diluted net loss per common share is calculated as follows:

	Three Months Ended June 30,						Six Months Ended June 30,
	2016			2015			2016			2015
Numerator:
Net loss	$	(11,004	)	$	(18,284	)	$	(24,356	)	$	(32,933	)
Net loss attributable to common stockholders	$	(11,004	)	$	(18,284	)	$	(24,356	)	$	(32,933	)
Denominator:
Weighted-average common shares outstanding, basic and diluted		29,459,341			28,633,992			29,336,270			27,694,935
Net loss per common share, basic and diluted	$	(0.37	)	$	(0.64	)	$	(0.83	)	$	(1.19	)

Fair Value Measurement (Tables)

6 Months Ended

Jun. 30, 2016

Fair Value Disclosures [Abstract]

Assets and Liabilities Measured at Fair Value on Recurring Basis

	June 30, 2016
Description	Level 1		Level 2		Level 3		Total
Cash Equivalents:
Money market mutual funds (1)	$	53,626	$	—	$	—	$	53,626
Total assets	$	53,626	$	—	$	—	$	53,626

	December 31, 2015
Description	Level 1		Level 2		Level 3		Total
Cash Equivalents:
Money market mutual funds (1)	$	46,905	$	—	$	—	$	46,905
Total assets	$	46,905	$	—	$	—	$	46,905

(1)

Marketable Securities (Tables)

6 Months Ended

Jun. 30, 2016

Investments Debt And Equity Securities [Abstract]

Schedule of Marketable Securities

The following presents information about the Company’s marketable securities as of:

	June 30, 2016		December 31, 2015
Aggregate cost basis and net carrying amount	$	11,069	$	40,448
Gross unrealized holding gains		6		1
Gross unrealized holding losses		-		(26	)
Aggregate fair value determined by Level 2 inputs	$	11,075	$	40,423

Investments In Unrealized Loss Position For Which Other-Than-Temporary Impairment not Recognized in Earnings

June 30, 2016

December 31, 2015

Aggregate fair value of investments with

unrealized losses (1)

2,025

27,070

Aggregate amount of unrealized losses

(26

)

(1)	Investments have been in a continuous loss position for less than 12 months.

Stockholders' Deficit (Tables)

6 Months Ended

Jun. 30, 2016

Equity [Abstract]

Shares of Common Stock Reserved for Future Issuance

At June 30, 2016, the Company had reserved a total of 4,574,415 of its authorized 50,000,000 shares of common stock for future issuance as follows:

Outstanding stock options			1,458,140
Restricted stock units			1,474,403
Available for future issuance under stock option plans			911,059
Available for future issuance under employee stock purchase plan			150,000
Warrant to purchase common stock			580,813
Total common shares reserved for future issuance			4,574,415

Segments and Geographic Information (Tables)

6 Months Ended

Jun. 30, 2016

Segment Reporting [Abstract]

Segments and Geographic Information

	Three Months Ended June 30,				Six Months Ended June 30,
	2016		2015		2016		2015
Revenue from external customers by segment:
Employer	$	36,261	$	20,779	$	68,454	$	41,677
Carrier		21,613		21,929		44,212		43,700
Total net revenue from external customers	$	57,874	$	42,708	$	112,666	$	85,377
Depreciation and amortization by segment:
Employer	$	1,975	$	1,450	$	3,767	$	2,792
Carrier		1,292		1,453		2,543		2,934
Total depreciation and amortization	$	3,267	$	2,903	$	6,310	$	5,726
Gross profit by segment:
Employer	$	15,269	$	7,571	$	27,551	$	16,125
Carrier		12,855		11,497		26,068		23,149
Total gross profit	$	28,124	$	19,068	$	53,619	$	39,274

Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Summary of Significant Accounting Policies [Line Items]
Revenue from implementation services	$ 368		$ 642
Allowance for doubtful accounts	10		10		$ 32
Capitalized software cost gross	1,501	$ 506	2,985	$ 1,051
Amortization of capitalized software cost	693	$ 671	1,319	$ 1,347
Capitalized software cost net	5,715		$ 5,715		4,049
Capitalized Software Development Costs
Summary of Significant Accounting Policies [Line Items]
Useful lives for property and equipment			3 years
Allowance for Returns
Summary of Significant Accounting Policies [Line Items]
Allowance for returns	$ 2,782		$ 2,782		$ 2,553
Customer Concentration Risk \| Accounts Receivable \| North Carolina State Health Plan
Summary of Significant Accounting Policies [Line Items]
Concentration risk, percentage					22.20%
Customer Concentration Risk \| Total Revenue \| North Carolina State Health Plan
Summary of Significant Accounting Policies [Line Items]
Concentration risk, percentage	10.40%
Customer Concentration Risk \| Total Revenue \| Aetna
Summary of Significant Accounting Policies [Line Items]
Concentration risk, percentage		10.00%		10.00%
Customer Concentration Risk \| Total Revenue \| Mercer
Summary of Significant Accounting Policies [Line Items]
Concentration risk, percentage	11.60%		10.90%
Maximum
Summary of Significant Accounting Policies [Line Items]
Highly rated marketable securities			2 years
Weighted average maturity of portfolio of investments			9 months

Common Share Equivalents Securities Excluded From Calculation of Weighted Average Common Share Outstanding (Detail) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive common share equivalents	3,513,356	3,714,387	3,513,356	3,714,387
Restricted Stock Units (RSUs)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive common share equivalents	1,474,403	998,889	1,474,403	998,889
Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive common share equivalents	1,458,140	2,134,685	1,458,140	2,134,685
Warrant to Purchase Common Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive common share equivalents	580,813	580,813	580,813	580,813

Basic and Diluted Net Loss per Common Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Numerator:
Net loss	$ (11,004)	$ (18,284)	$ (24,356)	$ (32,933)
Net loss attributable to common stockholders	$ (11,004)	$ (18,284)	$ (24,356)	$ (32,933)
Denominator:
Weighted-average common shares outstanding, basic and diluted	29,459,341	28,633,992	29,336,270	27,694,935
Net loss per common share, basic and diluted	$ (0.37)	$ (0.64)	$ (0.83)	$ (1.19)

Assets and Liabilities Measured at Fair Value on a Recurring Basis (Detail) - USD ($)
$ in Thousands

Jun. 30, 2016

Dec. 31, 2015

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Total assets

$ 53,626

$ 46,905

Level 1

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Total assets

53,626

46,905

Money market mutual funds

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Cash Equivalents

^[1]

53,626

46,905

Money market mutual funds | Level 1

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Cash Equivalents

^[1]

$ 53,626

$ 46,905

[1]

Marketable Securities - Additional Information (Detail)	6 Months Ended
Marketable Securities - Additional Information (Detail)	Jun. 30, 2016
Minimum
Gain (Loss) on Investments [Line Items]
Held-to-maturity securities, contractual maturity period	1 month
Maximum
Gain (Loss) on Investments [Line Items]
Held-to-maturity securities, contractual maturity period	7 months

Schedule of Marketable Securities (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Investments Debt And Equity Securities [Abstract]
Aggregate cost basis and net carrying amount	$ 11,069	$ 40,448
Gross unrealized holding gains	6	1
Gross unrealized holding losses		(26)
Aggregate fair value determined by Level 2 inputs	$ 11,075	$ 40,423

Unrealized Loss Position of Investments Other-Than-Temporary Impairment not Recognized in Earnings (Detail) - USD ($)
$ in Thousands

Jun. 30, 2016

Dec. 31, 2015

Investments Debt And Equity Securities [Abstract]

Aggregate fair value of investments with unrealized losses

^[1]

$ 2,025

$ 27,070

Aggregate amount of unrealized losses

$ (26)

[1]	Investments have been in a continuous loss position for less than 12 months.

Revolving Line of Credit - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended		6 Months Ended
	Jun. 30, 2016	Jan. 31, 2016	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Line Of Credit Facility [Line Items]
Amount outstanding under credit facility	$ 39,246		$ 39,246		$ 30,246
Amount available to borrow under line of credit	$ 20,754		$ 20,754
Line of credit, interest rate	4.50%		4.50%
Payments on revolving line of credit			$ 25,000	$ 34,903
Proceeds from line of credit borrowing			$ 34,000	$ 22,492
Hardware And Software
Line Of Credit Facility [Line Items]
Payments on revolving line of credit		$ 25,000
Proceeds from line of credit borrowing	$ 34,000

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References + Details

Stock-Based Compensation - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended	6 Months Ended
	Apr. 30, 2016	Jan. 31, 2016	Mar. 31, 2016	Jun. 30, 2016
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted stock units, granted	425,183	31,233
Restricted stock units, aggregate grant date fair value	$ 13,776	$ 1,091
Vesting period of restricted stock awards	4 years	4 years
Performance Based Restricted Stock Units R S Us
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted stock units, granted			26,376	242,331
Restricted stock units, aggregate grant date fair value			$ 875	$ 7,490
Awards vesting date				Dec. 31, 2017
Performance Based Restricted Stock Units R S Us \| Vest on December 31,2017 \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued vesting range			0.00%	0.00%
Performance Based Restricted Stock Units R S Us \| Vest on December 31,2017 \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued vesting range			100.00%	100.00%

Stockholders' Deficit - Additional Information (Detail) - USD ($)	1 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Schedule Of Stockholders Equity [Line Items]
Common stock, authorized shares reserved for future issuance	4,574,415
Common stock, shares authorized	50,000,000	50,000,000
Employee Stock Purchase Plan
Schedule Of Stockholders Equity [Line Items]
Common stock shares available for purchase	150,000
Percentage of common stock shares purchased on fair market value	95.00%
Maximum value of stock to be purchased per employee during the offering period	$ 12,500
Number of common stock shares purchased or distributed to employees	0

Common Stock for Future Issuance (Detail)	Jun. 30, 2016 shares
Class Of Stock [Line Items]
Outstanding stock options	1,458,140
Restricted stock units	1,474,403
Warrant to purchase common stock	580,813
Total common shares reserved for future issuance	4,574,415
Stock Option Plan
Class Of Stock [Line Items]
Common stock available for future issuance	911,059
Employee Stock Purchase Plan
Class Of Stock [Line Items]
Common stock available for future issuance	150,000

Segments and Geographic Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Segment Reporting Information [Line Items]
Net revenue from external customers	$ 57,874	$ 42,708	$ 112,666	$ 85,377
Depreciation and amortization	3,267	2,903	6,310	5,726
Gross profit	28,124	19,068	53,619	39,274
Employer
Segment Reporting Information [Line Items]
Net revenue from external customers	36,261	20,779	68,454	41,677
Depreciation and amortization	1,975	1,450	3,767	2,792
Gross profit	15,269	7,571	27,551	16,125
Carrier
Segment Reporting Information [Line Items]
Net revenue from external customers	21,613	21,929	44,212	43,700
Depreciation and amortization	1,292	1,453	2,543	2,934
Gross profit	$ 12,855	$ 11,497	$ 26,068	$ 23,149

Related Parties - Additional Information (Detail)	1 Months Ended	3 Months Ended		6 Months Ended
Related Parties - Additional Information (Detail)	Feb. 28, 2015	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) Option	Jun. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Related Party Transaction [Line Items]
Accounts receivable, related party		$ 2,862,000		$ 2,862,000		$ 2,082,000
Stockholders and Executives
Related Party Transaction [Line Items]
Due to related party, current		0		0		0
Transportation service from related party		11,000	$ 28,000	37,000	$ 82,000
Mercer LLC
Related Party Transaction [Line Items]
Revenue from related parties		6,712,000	3,501,000	12,258,000	4,615,000
Accounts receivable, related party		2,862,000		2,862,000		2,082,000
Deferred revenue		7,863,000		$ 7,863,000		9,128,000
Mercer LLC \| Minimum
Related Party Transaction [Line Items]
Percentage of ownership interest sold by parent	10.00%
Related Party Leasing Arrangements
Related Party Transaction [Line Items]
Lease agreement period				15 years
Percentage of fixed annual rent increases				3.00%
Lease operating expenses		2,286,000	$ 2,220,000	$ 5,666,000	$ 7,172,000
Due to related party, current		$ 1,262,000		$ 1,262,000		$ 1,116,000
Related Party Leasing Arrangements \| 2006 and 2009 Arrangements
Related Party Transaction [Line Items]
Lease renewal option, number of renewal options \| Option				1
Lease renewal option term				5 years
Related Party Leasing Arrangements \| 2015 Arrangement
Related Party Transaction [Line Items]
Lease renewal option, number of renewal options \| Option				5
Lease renewal option term				1 year

Subsequent Events - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended			6 Months Ended
	Jul. 31, 2016	Apr. 30, 2016	Jan. 31, 2016	Jun. 30, 2016	Jun. 30, 2015
Subsequent Event [Line Items]
Payments on revolving line of credit				$ 25,000	$ 34,903
Restricted Stock Units (RSUs)
Subsequent Event [Line Items]
Number of restricted stock units, granted		425,183	31,233
Restricted stock units, aggregate grant date fair value		$ 13,776	$ 1,091
Vesting period of restricted stock awards		4 years	4 years
Subsequent Event
Subsequent Event [Line Items]
Issuance of common stock upon exercise of stock options and vesting of restricted stock units	63,646
Subsequent Event \| Revolving Line of Credit
Subsequent Event [Line Items]
Payments on revolving line of credit	$ 34,000
Subsequent Event \| Restricted Stock Units (RSUs)
Subsequent Event [Line Items]
Number of restricted stock units, granted	31,391
Restricted stock units, aggregate grant date fair value	$ 1,181
Vesting period of restricted stock awards	4 years

Income Taxes - Additional Information (Detail)	3 Months Ended	6 Months Ended
Income Taxes - Additional Information (Detail)	Jun. 30, 2016	Jun. 30, 2016
Maximum
Income Taxes [Line Items]
Effective federal tax rate	1.00%	1.00%