Benefitfocus (BNFT) 10-Q 6 May 15 2015 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Mar. 31, 2015	4-May-15
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	FALSE
Document Period End Date	31-Mar-15
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Trading Symbol	BNFT
Entity Registrant Name	Benefitfocus,Inc.
Entity Central Index Key	1576169
Current Fiscal Year End Date	-19
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		28,587,055

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Current assets:
Cash and cash equivalents	$68,611	$51,074
Marketable securities	38,820	5,135
Accounts receivable, net	16,670	21,311
Accounts receivable, related party	2,184
Prepaid expenses and other current assets	5,157	4,242
Total current assets	131,442	81,762
Property and equipment, net	53,993	54,021
Intangible assets, net	874	951
Goodwill	1,634	1,634
Other non-current assets	1,796	1,650
Total assets	189,739	140,018
Current liabilities:
Accounts payable	4,567	5,589
Accrued expenses	6,679	9,171
Accrued compensation and benefits	19,312	17,374
Deferred revenue, current portion	28,735	20,384
Revolving line of credit, current portion	4,000
Financing and capital lease obligations, current portion	4,215	4,197
Total current liabilities	67,508	56,715
Deferred revenue, net of current portion	63,812	74,126
Revolving line of credit, net of current portion	5,246	17,657
Financing and capital lease obligations, net of current portion	31,911	32,240
Other non-current liabilities	2,188	2,103
Total liabilities	170,665	182,841
Commitments and contingencies
Stockholders' equity (deficit):
Preferred stock, par value $0.001, 5,000,000 shares authorized, no shares issued and outstanding at March 31, 2015 and December 31, 2014
Common stock, par value $0.001, 50,000,000 shares authorized, 28,519,303 and 25,608,937 shares issued and outstanding at March 31, 2015 and December 31, 2014, respectively	29	26
Additional paid-in capital	299,952	223,409
Accumulated deficit	-280,907	-266,258
Total stockholders' equity (deficit)	19,074	-42,823
Total liabilities and stockholders' equity (deficit)	$189,739	$140,018

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Preferred stock, par value	$0.00	$0.00
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	$0.00	$0.00
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	28,519,303	25,608,937
Common stock, shares outstanding	28,519,303	25,608,937

Consolidated_Statements_of_Ope

Consolidated Statements of Operations and Comprehensive Loss (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Revenue	$42,669	$30,696
Cost of revenue	22,463	19,226
Gross profit	20,206	11,470
Operating expenses:
Sales and marketing	15,475	10,987
Research and development	11,777	8,778
General and administrative	5,411	3,529
Total operating expenses	32,663	23,294
Loss from operations	-12,457	-11,824
Other income (expense):
Interest income	18	26
Interest expense on building lease financing obligations	-1,914	-459
Interest expense on other borrowings	-280	-129
Other expense	-1	-2
Total other expense, net	-2,177	-564
Loss before income taxes	-14,634	-12,388
Income tax expense	15	14
Net loss	-14,649	-12,402
Comprehensive loss	($14,649)	($12,402)
Net loss per common share:
Basic and diluted	($0.55)	($0.51)
Weighted-average common shares outstanding:
Basic and diluted	26,745,444	24,541,359

Consolidated_Statements_of_Cha

Consolidated Statements of Changes in Stockholders' (Deficit) Equity (USD $)	Total	Common Stock, $0.001 Par Value	Additional Paid-in Capital	Accumulated Deficit
In Thousands, except Share data
Balance at Dec. 31, 2014	($42,823)	$26	$223,409	($266,258)
Balance (in shares) at Dec. 31, 2014		25,608,937
Exercise of stock options (in shares)		92,840
Exercise of stock options	379		379
Issuance of common stock and warrant, net of issuance costs	74,331	3	74,328
Issuance of common stock and warrant, net of issuance costs (in shares)		2,817,526
Stock-based compensation expense	1,836		1,836
Net loss	-14,649			-14,649
Balance at Mar. 31, 2015	$19,074	$29	$299,952	($280,907)
Balance (in shares) at Mar. 31, 2015		28,519,303

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Cash flows from operating activities
Net loss	($14,649)	($12,402)
Adjustments to reconcile net loss to net cash and cash equivalents (used in) provided by operating activities:
Depreciation and amortization	2,823	2,444
Stock-based compensation expense	1,836	540
Change in fair value and accretion of warrant		223
Interest accrual on financing obligation	1,914	459
Loss on disposal or impairment of property and equipment	1	4
Changes in operating assets and liabilities:
Accounts receivable, net	2,457	5,377
Accrued interest on short-term investments	80	-4
Prepaid expenses and other current assets	-915	-462
Other non-current assets	421	323
Accounts payable	-295	-5
Accrued expenses	299	-1,079
Accrued compensation and benefits	1,938	2,221
Deferred revenue	-2,170	2,053
Other non-current liabilities	85	325
Net cash and cash equivalents (used in) provided by operating activities	-6,175	17
Cash flows from investing activities
Purchases of short-term investments held to maturity	-38,830	-12,959
Proceeds from maturity of short-term investments held to maturity	5,065
Purchases of property and equipment	-6,003	-2,107
Net cash and cash equivalents used in investing activities	-39,768	-15,066
Cash flows from financing activities
Draws on revolving line of credit	22,492
Payments on revolving line of credit	-30,903
Proceeds from exercises of stock options	379	466
Proceeds from issuance of common stock and warrant, net of issuance costs	74,538
Payments of deferred financing costs and debt issuance costs	-566	-46
Payments on financing and capital lease obligations	-2,460	-2,192
Net cash and cash equivalents provided by (used in) financing activities	63,480	-1,772
Net increase (decrease) in cash and cash equivalents	17,537	-16,821
Cash and cash equivalents, beginning of period	51,074	65,645
Cash and cash equivalents, end of period	68,611	48,824
Supplemental disclosure of non-cash investing and financing activities
Property and equipment acquisitions in accounts payable and accrued expenses	708
Property and equipment acquired with financing and capital lease obligations	236	1,633
Deferred financing costs in accrued expenses		189
Allocation of proceeds to deferred revenue from issuance of common stock based on estimated relative selling price	$207

Organization_and_Description_o

Organization and Description of Business	3 Months Ended
	Mar. 31, 2015
Organization and Description of Business	1. Organization and Description of Business
	Benefitfocus, Inc. (the “Company”) is a leading provider of cloud-based benefits software solutions for consumers, employers, insurance carriers and brokers delivered 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.

Summary_of_Significant_Account

Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2015
Summary of Significant Accounting Policies	2. Summary of Significant Accounting Policies
	Principles of Consolidation
	These unaudited consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”). The unaudited consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. The Company is not the primary beneficiary of, nor does it have a controlling financial interest in, any variable interest entity. Accordingly, the Company has 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-month period ended March 31, 2015 are not necessarily indicative of the results for the full year or 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, 2014 included in the Company’s annual report on Form 10-K.
	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 and warrants, the useful lives of assets, capitalizable software development costs and the related amortization, contingent consideration, stock-based compensation, annual bonus attainment, and the recognition and impairment 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 might undertake in the future as well as on various other assumptions that it believes to be reasonable. Actual results could differ from these estimates.
	Revenue and Deferred Revenue
	In January 2015, the Company adjusted the estimated expected life of its customer relationships. This change in estimate was the result of analyzing quantitative and qualitative observations in the market and the Company’s business. This change shortens the term over which deferred revenue will be recognized from 10 to 7 years and was applied prospectively to unamortized professional services fees over the longer of the contract term or the adjusted estimated expected life of the customer relationship.
	The change in the customer relationship period increased the amount of revenue recognized during the first quarter of 2015, which decreased loss from continuing operations and net loss by $1,700 and decreased our loss per share by $0.06 for the three months ended March 31, 2015. As a result of the change in the customer relationship period, Carrier and Employer revenue increased by $1,448 and $252, respectively, for the three months ended March 31, 2015.
	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. The Company holds its cash and cash equivalents 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 were unsecured and were derived from revenue earned from customers located in the United States. Accounts receivable from two customers, Aetna and Mercer, represented 12.3% and 11.4%, respectively, of the total accounts receivable at March 31, 2015. Accounts receivable from one customer, Aetna, represented 13.3% of total accounts receivable at December 31, 2014. One customer, Aetna, represented 10.2% of total revenue for the three months ended March 31, 2015. No customer represented more than 10% of total revenue for the three months ended March 31, 2014.
	Accounts Receivable and Allowance for Doubtful Accounts and Returns
	Accounts receivable is 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 unaudited 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. The Company removes recorded receivables and the associated allowances when they are deemed permanently uncollectible. Historically, actual write-offs for uncollectible accounts have not significantly differed from the Company’s estimates. However, higher than expected bad debts could result in write-offs that are greater than the Company’s estimates. The allowance for doubtful accounts was $10 as of both March 31, 2015 and December 31, 2014.
	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 $1,493 and $1,653 as of March 31, 2015 and December 31, 2014, 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 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 March 31, 2015 and 2014, the Company capitalized software development costs of $544 and $435, and amortized capitalized software development costs of $676 and $696, respectively. The net book value of capitalized software development costs was $4,002 and $4,134 at March 31, 2015 and December 31, 2014, respectively.
	Comprehensive Loss
	The Company’s net loss equals comprehensive loss for all periods presented.
	Accounting Standards Not Yet Adopted
	In May 2014, the FASB issued ASU No. 2014-09 “Revenue from Contracts with Customers”, which amends the revenue recognition requirements in the FASB Accounting Standards Codification (ASC). 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 statement is effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. Early adoption is not permitted. The Company is currently evaluating the impact of this guidance on the Company’s consolidated financial position and results of operations.
	In April 2015, the Financial Accounting Standard Board 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. This guidance is effective for annual and interim reporting periods of public entities beginning after December 15, 2015, and early adoption is permitted. The Company is currently evaluating the impact of this statement on its consolidated financial position.

Net_Loss_Per_Common_Share

Net Loss Per Common Share	3 Months Ended
	Mar. 31, 2015
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 March 31,
	Anti-Dilutive Common Share Equivalents	2015			2014
	Restricted stock units		684,948			94,200
	Stock options		2,282,707			2,941,595
	Warrant to purchase common stock		580,813			—
	Total anti-dilutive common share equivalents		3,548,468			3,035,795
	Basic and diluted net loss per common share is calculated as follows:
		Three Months Ended March 31,
		2015			2014
	Numerator:
	Net loss	$	(14,649	)	$	(12,402	)
	Net loss attributable to common stockholders	$	(14,649	)	$	(12,402	)
	Denominator:
	Weighted-average common shares outstanding, basic and diluted		26,745,444			24,541,359
	Net loss per common share, basic and diluted	$	(0.55	)	$	(0.51	)

Fair_Value_Measurement

Fair Value Measurement	3 Months Ended
	Mar. 31, 2015
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 March 31, 2015 and December 31, 2014.
			March 31, 2015
	Description		Level 1		Level 2		Level 3		Total
	Cash Equivalents:
	Money market mutual funds (1)		$	68,230	$	—	$	—	$	68,230
	Total assets		$	68,230	$	—	$	—	$	68,230
			December 31, 2014
	Description		Level 1		Level 2		Level 3		Total
	Cash Equivalents:
	Money market mutual funds (1)		$	50,695	$	—	$	—	$	50,695
	Total assets		$	50,695	$	—	$	—	$	50,695
	-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.

Marketable_Securities

Marketable Securities	3 Months Ended
	Mar. 31, 2015
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. The amortized cost basis and net carrying amount of marketable securities was $38,820 and $5,135 and the aggregate fair value, determined by level 2 inputs, was $38,798 and $5,134, as of March 31, 2015 and December 31, 2014, respectively. The gross unrealized holding gains were $3 and $0 and the gross unrealized losses were $25 and $1, as of March 31, 2015 and December 31, 2014, respectively. Corporate bonds held in marketable securities had contractual maturities of between 4 and 12 months as of March 31, 2015.
	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:
			March 31,			December 31,
			2015			2014
	Aggregate fair value of investments with unrealized losses (1)		$	26,426		$	5,135
	Aggregate amount of unrealized losses			(25	)		(1	)
	-1	Investments have been in a continuous loss position for less than 12 months

Property_and_Equipment

Property and Equipment	3 Months Ended
	Mar. 31, 2015
Property and Equipment	6. Property and Equipment
	Property and equipment consists of the following as of:
		March 31,			December 31,
		2015			2014
	Buildings, leased	$	26,444		$	7,965
	Computers and related equipment		20,118			18,871
	Purchased software and licenses		20,819			20,392
	Software developed		18,941			18,397
	Furniture and fixtures		6,182			3,834
	Leasehold improvements		6,589			3,334
	Other equipment		2,037			2,009
	Vehicles		111			111
	Construction in progress		656			24,296
	Total property and equipment, at cost		101,897			99,209
	Accumulated depreciation and amortization		(47,904	)		(45,188	)
	Property and equipment, net	$	53,993		$	54,021

Revolving_Line_of_Credit_and_S

Revolving Line of Credit and Senior Revolving Line of Credit	3 Months Ended
	Mar. 31, 2015
Revolving Line of Credit and Senior Revolving Line of Credit	7. Revolving Line of Credit and Senior Revolving Line of Credit
	In February 2015, the Company replaced its existing revolving line of credit (“Revolver”) with a senior revolving line of credit (“Senior Revolver”) with a syndicate of lenders led by the existing lender. On February 20, 2015, the Company borrowed $18,246 under the Senior Revolver, of which $17,657 repaid the principal of the Revolver and $589 paid accrued interest and administrative and legal fees related to the issuance of the Senior Revolver. The debt issuance fees were capitalized in the Company’s balance sheet and will be amortized over the life of the Senior Revolver.
	The three-year Senior Revolver has a borrowing limit of $60,000. Borrowing capacity under the Senior Revolver is subject to a borrowing base limit that is a function of the Company’s monthly recurring revenue as adjusted to reflect lost customer revenue during the previous three calendar months. Therefore, credit available under the Senior Revolver may be less than the $60,000 borrowing limit. Interest is payable monthly. Advances under the Senior Revolver bear interest at the prime rate as published in the Wall Street Journal plus a margin, based on the Company’s liquidity, that ranges between 1.0% and 1.5%. The Company is charged for amounts unused under this arrangement at a rate, based on its liquidity, of 0.300% to 0.375% per year. Any outstanding principal is due at the end of the term.
	The Company is bound by customary affirmative and negative covenants in connection with the Senior Revolver, including financial covenants related to liquidity and EBITDA. In the event of a default, the lenders may declare all obligations immediately due and stop advancing money or extending credit under the line of credit. The line of credit is collateralized by substantially all of the Company’s tangible and intangible assets, including intellectual property and the equity of subsidiaries.
	In February 2015, the Company repaid $13,246 under the Senior Revolver, and in March 2015, the Company borrowed $4,246 for general operating purposes.
	As of March 31, 2015, the amount outstanding under the Senior Revolver was $9,246 and the amount available to borrow, adjusted by the borrowing base limit, was $39,424.

Commitments_and_Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2015
Commitments and Contingencies	8. Commitments and Contingencies
	Financing and Capital Lease Obligations
	During January 2015, the Company began to occupy additional office space constructed under a 15-year build-to-suit lease signed in December 2013. During the construction of the premises, the Company was deemed the “owner” for accounting purposes due to its extensive involvement in the construction process. Upon completion, the Company was also deemed the “owner” for accounting purposes due to its continuing involvement. As such, costs included in construction-in-progress for the building and related assets were recorded in “Property and equipment, net” and the related financing obligation of $20,865 remained recorded as of March 31, 2015.

Stockbased_Compensation

Stock-based Compensation	3 Months Ended
	Mar. 31, 2015
Stock-based Compensation	9. Stock-based Compensation
	Restricted Stock Units
	During January 2015, the Company granted 26,050 restricted stock units to employees with an aggregate grant date fair value of $815. 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.

Stockholders_Equity_Deficit

Stockholders' Equity (Deficit)	3 Months Ended
	Mar. 31, 2015
Stockholders' Equity (Deficit)	10. Stockholders’ Equity (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 any preferred stock.
	At March 31, 2015, the Company had reserved a total of 5,557,826 of its authorized 50,000,000 shares of common stock for future issuance as follows:
	Outstanding stock options	2,282,707
	Restricted stock units	684,948
	Possible future issuance under stock option plans	2,009,358
	Warrant to purchase common stock	580,813
	Total common shares reserved for future issuance	5,557,826
	On February 24, 2015 and in conjunction with the amendment to the commercial contract described in Note 13, the Company entered into a Securities Purchase Agreement to sell shares of its common stock to Mercer, LLC (“Mercer”), a customer of the Company. Pursuant to the agreement, on the same date, the Company sold 2,817,526 shares of its common stock to Mercer for $26.50 per share or an aggregate of $74,664. At the same time, the Company also issued Mercer a warrant to purchase up to an additional 580,813 shares of its common stock for $26.50 per share at any time during the 30-month term of the warrant. The agreement, among other things, includes certain standstill provisions and prevents Mercer from disposing of its shares of Company common stock until the earlier of December 31, 2017, the expiration or termination of the Mercer Exchange Software as a Service Agreement, as amended, between the Company and Mercer Health & Benefits, LLC, the date on which Mercer and its affiliates own less than 75% of the shares it purchased pursuant to the Securities Purchase Agreement, and the date on which Mercer and its affiliates own less than 5% of the outstanding common stock of the Company. The Company received all of the proceeds from this sale of shares and will use the proceeds for working capital and other general corporate purposes.
	The Stock Purchase Agreement, warrant agreement and amended commercial contract are considered part of a single arrangement and accounted for in accordance with the multiple-element arrangement guidance outlined in ASC 605-25, Revenue: Multiple-Element Arrangements. The aggregate consideration from the arrangement was allocated to the units of accounting in the arrangement based on their estimated relative selling price, which resulted in $74,331 of consideration being allocated to common stock and warrant.

Income_Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2015
Income Taxes	11. Income Taxes
	The Company’s effective federal tax rate for the three months ended March 31, 2015 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 on the net operating loss carryforwards. Current tax expense relates to estimated state income taxes.

Segments_and_Geographic_Inform

Segments and Geographic Information	3 Months Ended
	Mar. 31, 2015
Segments and Geographic Information	12. 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
		March 31,
		2015		2014
	Revenue from external customers by segment:
	Employer	$	20,898	$	13,277
	Carrier		21,771		17,419
	Total net revenue from external customers	$	42,669	$	30,696
	Depreciation and amortization by segment:
	Employer	$	1,342	$	1,034
	Carrier		1,481		1,410
	Total depreciation and amortization	$	2,823	$	2,444
	Gross profit by segment
	Employer	$	8,554	$	4,607
	Carrier		11,652		6,863
	Total gross profit	$	20,206	$	11,470
	Substantially all assets were held and all revenue was generated in the United States during the three months ended March 31, 2015 and 2014.

Related_Parties

Related Parties	3 Months Ended
	Mar. 31, 2015
Related Parties	13. 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 Company 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 $4,952 and $1,360 for the three months ended March 31, 2015 and 2014, respectively. Amounts due to these entities were $368 and $1,807 as of March 31, 2015 and December 31, 2014, respectively. Amounts due to these entities were recorded as “Accrued Expenses” as of March 31, 2015 and, as of December 31, 2014, $949 was recorded in “Accounts payable” and $858 was recorded in “Accrued Expenses”.
	Related Party Travel Expenses
	The Company utilizes the services of a private air transportation company that is owned and controlled by a Company director, significant stockholders and executive. Expenses related to this company were $55 and $93 for the three months ended March 31, 2015 and 2014, respectively. Amounts due to this company were $7 and $44 as of March 31, 2015 and December 31, 2014, respectively, and were recorded in “Accrued expenses.”
	Related Party Revenues
	As disclosed in Note 10, the Company entered into a Stock Purchase Agreement with Mercer, a customer, on February 24, 2015. As a result of this transaction, Mercer became a principal owner of the Company and thus a related party by beneficially owning more than 10% of the voting interest of the Company. At the same time, the Company entered into an amendment of its commercial contract with Mercer. The amendment to the commercial contract, among other things, expands certain terms and conditions of the existing relationship between the Company and Mercer and its affiliates. Revenue from Mercer from the time they became a related party was $1,114 for the three months ended March 31, 2015 and was reflected in “Revenues,” within the accompanying statement of operations. The amounts due from Mercer was $2,184 as of March 31, 2015. The amount of deferred revenue associated with Mercer was $7,716 as of March 31, 2015 and was reflected in the balances of deferred revenue in the consolidated balance sheets.

Subsequent_Events

Subsequent Events	3 Months Ended
	Mar. 31, 2015
Subsequent Events	14. Subsequent Events
	Restricted Stock Units
	During April 2015, the Company granted 401,043 RSUs to employees with an aggregate grant date fair value of $14,377. These RSUs vest in equal annual installments over 4 years from the grant date. The Company amortizes the fair value of the stock subject to the RSUs 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 RSUs in the period they vest, to the extent the compensation expense has been recognized.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2015
Principles of Consolidation	Principles of Consolidation
	These unaudited consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”). The unaudited consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. The Company is not the primary beneficiary of, nor does it have a controlling financial interest in, any variable interest entity. Accordingly, the Company has 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-month period ended March 31, 2015 are not necessarily indicative of the results for the full year or 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, 2014 included in the Company’s annual report on Form 10-K.
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 and warrants, the useful lives of assets, capitalizable software development costs and the related amortization, contingent consideration, stock-based compensation, annual bonus attainment, and the recognition and impairment 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 might undertake in the future as well as on various other assumptions that it believes to be reasonable. Actual results could differ from these estimates.
Revenue and Deferred Revenue	Revenue and Deferred Revenue
	In January 2015, the Company adjusted the estimated expected life of its customer relationships. This change in estimate was the result of analyzing quantitative and qualitative observations in the market and the Company’s business. This change shortens the term over which deferred revenue will be recognized from 10 to 7 years and was applied prospectively to unamortized professional services fees over the longer of the contract term or the adjusted estimated expected life of the customer relationship.
	The change in the customer relationship period increased the amount of revenue recognized during the first quarter of 2015, which decreased loss from continuing operations and net loss by $1,700 and decreased our loss per share by $0.06 for the three months ended March 31, 2015. As a result of the change in the customer relationship period, Carrier and Employer revenue increased by $1,448 and $252, respectively, for the three months ended March 31, 2015.
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. The Company holds its cash and cash equivalents 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 were unsecured and were derived from revenue earned from customers located in the United States. Accounts receivable from two customers, Aetna and Mercer, represented 12.3% and 11.4%, respectively, of the total accounts receivable at March 31, 2015. Accounts receivable from one customer, Aetna, represented 13.3% of total accounts receivable at December 31, 2014. One customer, Aetna, represented 10.2% of total revenue for the three months ended March 31, 2015. No customer represented more than 10% of total revenue for the three months ended March 31, 2014.
Accounts Receivable and Allowance for Doubtful Accounts and Returns	Accounts Receivable and Allowance for Doubtful Accounts and Returns
	Accounts receivable is 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 unaudited 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. The Company removes recorded receivables and the associated allowances when they are deemed permanently uncollectible. Historically, actual write-offs for uncollectible accounts have not significantly differed from the Company’s estimates. However, higher than expected bad debts could result in write-offs that are greater than the Company’s estimates. The allowance for doubtful accounts was $10 as of both March 31, 2015 and December 31, 2014.
	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 $1,493 and $1,653 as of March 31, 2015 and December 31, 2014, 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 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 March 31, 2015 and 2014, the Company capitalized software development costs of $544 and $435, and amortized capitalized software development costs of $676 and $696, respectively. The net book value of capitalized software development costs was $4,002 and $4,134 at March 31, 2015 and December 31, 2014, 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 May 2014, the FASB issued ASU No. 2014-09 “Revenue from Contracts with Customers”, which amends the revenue recognition requirements in the FASB Accounting Standards Codification (ASC). 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 statement is effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. Early adoption is not permitted. The Company is currently evaluating the impact of this guidance on the Company’s consolidated financial position and results of operations.
	In April 2015, the Financial Accounting Standard Board 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. This guidance is effective for annual and interim reporting periods of public entities beginning after December 15, 2015, and early adoption is permitted. The Company is currently evaluating the impact of this statement on its consolidated financial position.

Net_Loss_Per_Common_Share_Tabl

Net Loss Per Common Share (Tables)	3 Months Ended
	Mar. 31, 2015
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 March 31,
	Anti-Dilutive Common Share Equivalents	2015			2014
	Restricted stock units		684,948			94,200
	Stock options		2,282,707			2,941,595
	Warrant to purchase common stock		580,813			—
	Total anti-dilutive common share equivalents		3,548,468			3,035,795
Basic and Diluted Net Loss per Common Share	Basic and diluted net loss per common share is calculated as follows:
		Three Months Ended March 31,
		2015			2014
	Numerator:
	Net loss	$	(14,649	)	$	(12,402	)
	Net loss attributable to common stockholders	$	(14,649	)	$	(12,402	)
	Denominator:
	Weighted-average common shares outstanding, basic and diluted		26,745,444			24,541,359
	Net loss per common share, basic and diluted	$	(0.55	)	$	(0.51	)

Fair_Value_Measurement_Tables

Fair Value Measurement (Tables)	3 Months Ended
	Mar. 31, 2015
Assets and Liabilities Measured at Fair Value on Recurring Basis	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 March 31, 2015 and December 31, 2014.
			March 31, 2015
	Description		Level 1		Level 2		Level 3		Total
	Cash Equivalents:
	Money market mutual funds (1)		$	68,230	$	—	$	—	$	68,230
	Total assets		$	68,230	$	—	$	—	$	68,230
			December 31, 2014
	Description		Level 1		Level 2		Level 3		Total
	Cash Equivalents:
	Money market mutual funds (1)		$	50,695	$	—	$	—	$	50,695
	Total assets		$	50,695	$	—	$	—	$	50,695
	-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.

Marketable_Securities_Tables

Marketable Securities (Tables)	3 Months Ended
	Mar. 31, 2015
Investments In Unrealized Loss Position For Which Other-Than-Temporary Impairment not Recognized in Earnings	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:
			March 31,			December 31,
			2015			2014
	Aggregate fair value of investments with unrealized losses (1)		$	26,426		$	5,135
	Aggregate amount of unrealized losses			(25	)		(1	)
	-1	Investments have been in a continuous loss position for less than 12 months

Property_and_Equipment_Tables

Property and Equipment (Tables)	3 Months Ended
	Mar. 31, 2015
Property and Equipment	Property and equipment consists of the following as of:
		March 31,			December 31,
		2015			2014
	Buildings, leased	$	26,444		$	7,965
	Computers and related equipment		20,118			18,871
	Purchased software and licenses		20,819			20,392
	Software developed		18,941			18,397
	Furniture and fixtures		6,182			3,834
	Leasehold improvements		6,589			3,334
	Other equipment		2,037			2,009
	Vehicles		111			111
	Construction in progress		656			24,296
	Total property and equipment, at cost		101,897			99,209
	Accumulated depreciation and amortization		(47,904	)		(45,188	)
	Property and equipment, net	$	53,993		$	54,021

Stockholders_Equity_Deficit_Ta

Stockholders' Equity (Deficit) (Tables)	3 Months Ended
	Mar. 31, 2015
Shares of Common Stock Reserved for Future Issuance	At March 31, 2015, the Company had reserved a total of 5,557,826 of its authorized 50,000,000 shares of common stock for future issuance as follows:
	Outstanding stock options	2,282,707
	Restricted stock units	684,948
	Possible future issuance under stock option plans	2,009,358
	Warrant to purchase common stock	580,813
	Total common shares reserved for future issuance	5,557,826

Segments_and_Geographic_Inform1

Segments and Geographic Information (Tables)	3 Months Ended
	Mar. 31, 2015
Segments and Geographic Information
		Three Months Ended
		March 31,
		2015		2014
	Revenue from external customers by segment:
	Employer	$	20,898	$	13,277
	Carrier		21,771		17,419
	Total net revenue from external customers	$	42,669	$	30,696
	Depreciation and amortization by segment:
	Employer	$	1,342	$	1,034
	Carrier		1,481		1,410
	Total depreciation and amortization	$	2,823	$	2,444
	Gross profit by segment
	Employer	$	8,554	$	4,607
	Carrier		11,652		6,863
	Total gross profit	$	20,206	$	11,470

Summary_of_Significant_Account2

Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	3 Months Ended		12 Months Ended	1 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Jan. 31, 2015
		Customer
Summary of Significant Accounting Policies [Line Items]
Loss before income taxes	($14,634)	($12,388)
Net loss	-14,649	-12,402
Loss per share	($0.55)	($0.51)
Revenue	42,669	30,696
Number of customers exceeded 10% of total revenue		0
Allowance for doubtful accounts	10		10
Capitalized software cost gross	544	435
Amortization of capitalized software cost	676	696
Capitalized software cost net	4,002		4,134
Customer Concentration Risk | Accounts Receivable | Aetna
Summary of Significant Accounting Policies [Line Items]
Concentration risk, percentage	12.30%		13.30%
Customer Concentration Risk | Accounts Receivable | Mercer
Summary of Significant Accounting Policies [Line Items]
Concentration risk, percentage	11.40%
Customer Concentration Risk | Total Revenue | Aetna
Summary of Significant Accounting Policies [Line Items]
Concentration risk, percentage	10.20%
Capitalized Software Development Costs
Summary of Significant Accounting Policies [Line Items]
Useful lives for property and equipment	3 years
Change in Customer Relationship Period
Summary of Significant Accounting Policies [Line Items]
Loss before income taxes	-1,700
Net loss	-1,700
Loss per share	($0.06)
Change in Customer Relationship Period | Carrier
Summary of Significant Accounting Policies [Line Items]
Revenue	1,448
Change in Customer Relationship Period | Employer
Summary of Significant Accounting Policies [Line Items]
Revenue	252
Maximum
Summary of Significant Accounting Policies [Line Items]
Marketable securities, investment maturity period	2 years
Weighted average maturity of portfolio investments	9 months
Maximum | Customer Agreements
Summary of Significant Accounting Policies [Line Items]
Deferred revenue recognition period				10 years
Minimum | Customer Agreements
Summary of Significant Accounting Policies [Line Items]
Deferred revenue recognition period				7 years
Allowance for Returns
Summary of Significant Accounting Policies [Line Items]
Allowance for returns	$1,493		1,653

Common_Share_Equivalents_Secur

Common Share Equivalents Securities Excluded From Calculation of Weighted Average Common Share Outstanding (Detail)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive common share equivalents	3,548,468	3,035,795
Restricted Stock Units (RSUs)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive common share equivalents	684,948	94,200
Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive common share equivalents	2,282,707	2,941,595
Warrant to Purchase Common Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive common share equivalents	580,813

Basic_and_Diluted_Net_Loss_per

Basic and Diluted Net Loss per Common Share (Detail) (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Numerator:
Net loss	($14,649)	($12,402)
Net loss attributable to common stockholders	($14,649)	($12,402)
Denominator:
Weighted-average common shares outstanding, basic and diluted	26,745,444	24,541,359
Net loss per common share, basic and diluted	($0.55)	($0.51)

Assets_and_Liabilities_Measure

Assets and Liabilities Measured at Fair Value on a Recurring Basis (Detail) (USD $)	Mar. 31, 2015		Dec. 31, 2014
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	$68,230		$50,695
Money market mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents	68,230	[1]	50,695	[1]
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	68,230		50,695
Level 1 | Money market mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents	$68,230	[1]	$50,695	[1]
[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.

Marketable_Securities_Addition

Marketable Securities - Additional Information (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Gain (Loss) on Investments [Line Items]
Held-to-maturity securities, amortized cost basis	38,820	$5,135
Held-to-maturity securities, net carrying amount	38,820	5,135
Held-to-maturity securities, fair value	38,798	5,134
Held-to-maturity securities, gross unrealized holding gains	3	0
Held-to-maturity securities, gross unrealized holding losses	25	$1
Minimum
Gain (Loss) on Investments [Line Items]
Held-to-maturity securities, contractual maturity period	4 months
Maximum
Gain (Loss) on Investments [Line Items]
Held-to-maturity securities, contractual maturity period	12 months

Unrealized_Loss_Position_of_In

Unrealized Loss Position of Investments Other-Than-Temporary Impairment not Recognized in Earnings (Detail) (USD $)	3 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015		Dec. 31, 2014
Gain (Loss) on Investments [Line Items]
Aggregate fair value of investments with unrealized losses	$26,426	[1]	$5,135	[1]
Aggregate amount of unrealized losses	($25)		($1)
[1]	Investments have been in a continuous loss position for less than 12 months

Property_and_Equipment_Detail

Property and Equipment (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$101,897	$99,209
Accumulated depreciation and amortization	-47,904	-45,188
Property and equipment, net	53,993	54,021
Buildings
Property, Plant and Equipment [Line Items]
Property and equipment, gross	26,444	7,965
Computers and Related Equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	20,118	18,871
Purchased Software and Licenses
Property, Plant and Equipment [Line Items]
Property and equipment, gross	20,819	20,392
Software Developed
Property, Plant and Equipment [Line Items]
Property and equipment, gross	18,941	18,397
Furniture and Fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	6,182	3,834
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	6,589	3,334
Other Equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	2,037	2,009
Vehicles
Property, Plant and Equipment [Line Items]
Property and equipment, gross	111	111
Construction in progress, build-to-suit
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$656	$24,296

Revolving_Line_of_Credit_and_S1

Revolving Line of Credit and Senior Revolving Line of Credit - Additional Information (Detail) (USD $)	3 Months Ended	1 Months Ended		0 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2015	Feb. 28, 2015	Feb. 20, 2015
Line of Credit Facility [Line Items]
Proceeds from line of credit borrowing	$22,492
Payments on revolving line of credit	30,903
Amount outstanding under credit facility	9,246	9,246
Amount available to borrow under line of credit	39,424	39,424
Hardware And Software
Line of Credit Facility [Line Items]
Proceeds from line of credit borrowing		4,246
Payments on revolving line of credit			13,246
Senior Revolving Line of Credit
Line of Credit Facility [Line Items]
Proceeds from line of credit borrowing				18,246
Administrative and legal fees related to the issuance of line of credit				589
Revolving Line of Credit
Line of Credit Facility [Line Items]
Payments on revolving line of credit				17,657
Line of credit facility, expiration period			3 years
Line of credit facility maximum borrowing capacity			60,000
Revolving Line of Credit | Maximum
Line of Credit Facility [Line Items]
Amount under revolving line of credit available to company			$60,000
Liquidity percentage			1.50%
Line of credit facility, unused capacity, commitment fee percentage			0.38%
Revolving Line of Credit | Minimum
Line of Credit Facility [Line Items]
Liquidity percentage			1.00%
Line of credit facility, unused capacity, commitment fee percentage			0.30%

Commitments_and_Contingencies_

Commitments and Contingencies - Additional Information (Detail) (Build-to-suit Lease, USD $)	1 Months Ended
In Thousands, unless otherwise specified	Jan. 31, 2015	Mar. 31, 2015
Commitments and Contingencies Disclosure [Line Items]
Capital lease agreement period	15 years
Property Plant And Equipment Net
Commitments and Contingencies Disclosure [Line Items]
Financing obligation		$20,865

StockBased_Compensation_Additi

Stock-Based Compensation - Additional Information (Detail) (Restricted Stock Units (RSUs), USD $)	1 Months Ended
In Thousands, except Share data, unless otherwise specified	Jan. 31, 2015
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units, granted	26,050
Restricted stock units, aggregate grant date fair value	$815
Stock plan vesting period	4 years

Stockholders_Equity_Deficit_Ad

Stockholders' Equity (Deficit) - Additional Information (Detail) (USD $)	3 Months Ended	0 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Feb. 24, 2015	Dec. 31, 2014
Schedule Of Stockholders Equity [Line Items]
Common stock , authorized shares reserved for future issuance	5,557,826
Common stock , shares authorized	50,000,000		50,000,000
Proceeds from issuance of common stock and warrant, gross	$74,331
Mercer LLC
Schedule Of Stockholders Equity [Line Items]
Stock issued, shares		2,817,526
Stock issued, price per share		$26.50
Stock issued, value		$74,664
Warrant term		30 months
Maximum number of shares to be issued under warrant agreement		580,813
Warrant exercise price per share		$26.50
Mercer LLC | Maximum
Schedule Of Stockholders Equity [Line Items]
Common stock ownership percentage in Mercer Health & Benefits, LLC		75.00%
Outstanding common stock ownership percentage		5.00%

Common_Stock_for_Future_Issuan

Common Stock for Future Issuance (Detail)	Mar. 31, 2015
Common Stock [Line Items]
Outstanding stock options	2,282,707
Restricted stock units	684,948
Possible future issuance under stock option plans	2,009,358
Warrant to purchase common stock	580,813
Total common shares reserved for future issuance	5,557,826

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (Maximum)	3 Months Ended
	Mar. 31, 2015
Maximum
Income Taxes [Line Items]
Effective federal tax rate	-1.00%

Segment_and_Geographic_Informa

Segment and Geographic Information (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Segment Reporting Information [Line Items]
Net revenue from external customers	$42,669	$30,696
Depreciation and amortization	2,823	2,444
Gross profit	20,206	11,470
Employer
Segment Reporting Information [Line Items]
Net revenue from external customers	20,898	13,277
Depreciation and amortization	1,342	1,034
Gross profit	8,554	4,607
Carrier
Segment Reporting Information [Line Items]
Net revenue from external customers	21,771	17,419
Depreciation and amortization	1,481	1,410
Gross profit	$11,652	$6,863

Related_Parties_Additional_Inf

Related Parties - Additional Information (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Related Party Transaction [Line Items]
Lease agreement period	15 years
Percentage of fixed annual rent increases	3.00%
Lease operating expenses	$4,952	$1,360
Due to related party	368		1,807
Transportation service from related party	55	93
Due to related party, current	7		44
Mercer
Related Party Transaction [Line Items]
Revenue from related parties	1,114
Due from related parties	2,184
Deferred revenue	7,716
Mercer | Minimum
Related Party Transaction [Line Items]
Outstanding common stock ownership percentage	10.00%
Accounts Payable
Related Party Transaction [Line Items]
Due to related party			949
Accrued Expense
Related Party Transaction [Line Items]
Due to related party			$858
2006 and 2009 Arrangements
Related Party Transaction [Line Items]
Lease renewal option, number of renewal options	1
Lease renewal option term	5 years
2015 Arrangement
Related Party Transaction [Line Items]
Lease renewal option, number of renewal options	5
Lease renewal option term	1 year

Subsequent_Events_Additional_I

Subsequent Events - Additional Information (Detail) (Restricted Stock Units (RSUs), USD $)	1 Months Ended
In Thousands, except Share data, unless otherwise specified	Jan. 31, 2015	Apr. 30, 2015
Subsequent Event [Line Items]
Restricted stock units, granted	26,050
Restricted stock units, aggregate grant date fair value	$815
Stock plan vesting period	4 years
Subsequent Event
Subsequent Event [Line Items]
Restricted stock units, granted		401,043
Restricted stock units, aggregate grant date fair value		$14,377
Stock plan vesting period		4 years