Demandware (DWRE) 10-Q 8 Nov 13 2013 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2013	Nov. 04, 2013
Document And Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	30-Sep-13	'
Document Fiscal Year Focus	'2013	'
Document Fiscal Period Focus	'Q3	'
Entity Registrant Name	'DEMANDWARE INC	'
Entity Central Index Key	'0001301031	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Non-accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	30,996,944

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (unaudited) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$69,567	$58,877
Short-term investments	45,658	48,251
Accounts receivable-net of allowance for doubtful accounts and credit memos of $1,720 and $630 at September 30, 2013 and December 31, 2012, respectively	20,053	19,214
Prepaid expenses and other current assets	4,571	3,452
Total current assets	139,849	129,794
Property and equipment, net	9,106	8,377
Other assets	1,622	1,157
Total assets	150,577	139,328
Current liabilities:	'	'
Current portion of notes payable	3,218	3,021
Accounts payable	1,444	3,168
Accrued expenses	17,423	8,348
Deferred revenue	18,766	11,105
Deferred rent	175	127
Total current liabilities	41,026	25,769
Long-term liabilities:	'	'
Deferred revenue	18,854	15,647
Notes payable	1,881	2,353
Deferred rent	915	969
Total liabilities	62,676	44,738
Contingencies (Note 6)	'	'
Stockholders' equity:	'	'
Preferred stock, $0.01 par value per share-10,000 shares authorized, none issued and outstanding	'	'
Common stock, $0.01 par value per share-240,000 shares authorized, 30,930 and 29,842 shares issued and outstanding at September 30, 2013 and December 31, 2012, respectively	309	298
Additional paid-in capital	186,945	170,997
Accumulated other comprehensive gain (loss)	19	-17
Accumulated deficit	-99,372	-76,688
Total stockholders' equity	87,901	94,590
Total liabilities and stockholders' equity	$150,577	$139,328

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (unaudited) (Parenthetical) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, except Per Share data, unless otherwise specified
Statement Of Financial Position [Abstract]	'	'
Accounts receivable, allowance for doubtful accounts and credit memos	$1,720	$630
Preferred stock, par value	$0.01	$0.01
Preferred stock, shares authorized	10,000	10,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$0.01	$0.01
Common stock, shares authorized	240,000	240,000
Common stock, shares issued	30,930	29,842
Common stock, shares outstanding	30,930	29,842

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Operations and Comprehensive Loss (unaudited) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Revenue:	'	'	'	'
Subscription	$22,563	$16,250	$62,274	$45,061
Services	1,916	2,456	5,926	8,095
Total revenue	24,479	18,706	68,200	53,156
Cost of revenue:	'	'	'	'
Subscription	4,325	3,501	12,369	9,407
Services	2,726	2,990	7,706	8,598
Total cost of revenue	7,051	6,491	20,075	18,005
Gross profit	17,428	12,215	48,125	35,151
Operating expenses:	'	'	'	'
Sales and marketing	12,918	8,496	38,474	24,402
Research and development	5,439	3,935	15,556	11,490
General and administrative	5,840	3,350	16,594	9,751
Total operating expenses	24,197	15,781	70,624	45,643
Loss from operations	-6,769	-3,566	-22,499	-10,492
Other income (expense):	'	'	'	'
Interest income	49	50	166	97
Interest expense	-55	-109	-202	-263
Other income (expense)	628	193	325	-455
Other income (expense), net	622	134	289	-621
Loss before income taxes	-6,147	-3,432	-22,210	-11,113
Income tax expense	110	39	474	235
Net loss	-6,257	-3,471	-22,684	-11,348
Accretion of redeemable convertible preferred stock	'	'	'	-1,172
Net loss attributable to common stockholders	-6,257	-3,471	-22,684	-12,520
Net loss per share attributable to common stockholders, basic and diluted	($0.20)	($0.12)	($0.75)	($0.57)
Weighted average common shares outstanding, basic and diluted	30,710	29,200	30,314	22,158
Net loss	-6,257	-3,471	-22,684	-11,348
Other comprehensive income (loss), net of tax:	'	'	'	'
Foreign currency translation adjustments	85	21	49	'
Unrealized gain (loss) on marketable securities	7	11	-13	5
Comprehensive loss	($6,165)	($3,439)	($22,648)	($11,343)

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Cash Flows (unaudited) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
CASH FLOWS FROM OPERATING ACTIVITIES:	'	'
Net loss	($22,684)	($11,348)
Adjustments to reconcile net loss to net cash provided by operating activities:	'	'
Depreciation and amortization	3,293	2,432
Gain on disposal of property and equipment	'	-3
Re-measurement of preferred stock warrant liability	'	426
Bad debt expense	433	'
Stock-based compensation	10,833	4,802
Deferred rent expense	-9	382
Other non-cash reconciling items	467	93
Changes in operating assets and liabilities:	'	'
Accounts receivable	-1,272	1,296
Prepaid expenses and other current assets	-544	-1,259
Other long term assets	-286	182
Accounts payable	-1,437	733
Accrued expenses	9,008	1,442
Deferred revenue	10,867	4,545
Net cash provided by operating activities	8,669	3,723
CASH FLOWS FROM INVESTING ACTIVITIES:	'	'
Purchase of property and equipment	-4,335	-3,659
Purchase of marketable securities	-47,694	-46,577
Sale and maturity of marketable securities	49,823	9,499
Increase in restricted cash and other assets	-167	-168
Net cash used in investing activities	-2,373	-40,905
CASH FLOWS FROM FINANCING ACTIVITIES:	'	'
Proceeds from initial public offering, net of underwriting discounts and commissions	'	94,116
Proceeds from exercise of stock options	5,126	1,030
Deferred offering costs	'	-1,561
Proceeds from issuance of notes payable	1,997	2,757
Payments of equipment notes	-2,146	-1,977
Payments of software financing agreement	-706	-242
Net cash provided by financing activities	4,271	94,123
EFFECT OF EXCHANGE RATES ON CASH AND CASH EQUIVALENTS	123	6
INCREASE IN CASH AND CASH EQUIVALENTS	10,690	56,947
CASH AND CASH EQUIVALENTS-Beginning of period	58,877	14,939
CASH AND CASH EQUIVALENTS-End of period	69,567	71,886
SUPPLEMENTARY INFORMATION:	'	'
Interest paid	196	213
Income taxes paid	257	191
NON-CASH INVESTING AND FINANCING ACTIVITIES:	'	'
Conversion of redeemable convertible preferred stock to common stock	'	88,775
Conversion of preferred stock warrant to common stock warrant	'	533
Purchase of property and equipment included in accounts payable and accrued expenses	4	95
Software license acquired by assuming directly related liabilities	'	1,212
Software license technical support acquired by assuming directly related liabilities	$561	$549

Organization_and_Summary_of_Si

Organization and Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2013
Accounting Policies [Abstract]	'
Organization and Summary of Significant Accounting Policies	'
	1. ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
	Company Overview—Demandware, Inc. (the “Company”) provides cloud-based digital commerce solutions that enable companies to easily design, implement and manage their own customized digital commerce sites, including websites, mobile applications and other digital storefronts. The Company’s digital commerce platform, Demandware Commerce, enables customers to establish and execute complex digital commerce strategies that include global expansion, multi-brand rollouts and omni-channel operations. The Company’s customers use its highly scalable and integrated Demandware Commerce platform to create a seamless brand experience for consumers across all digital touch points worldwide.
	The Company sells subscriptions to its on-demand software and related services through a direct sales force and indirect channels. The Company’s customers consist of retailers and branded manufacturers that operate principally in the following vertical markets: apparel and footwear, health and beauty, home and garden, sporting goods and general merchandise.
	The Company’s headquarters are located in Burlington, Massachusetts. At September 30, 2013, the Company had seven subsidiaries: Demandware Securities Corporation, Demandware GmbH, Demandware UK Limited, Demandware SARL and Demandware Hong Kong Limited, each of which is wholly owned by the Company, and Demandware E-Commerce (Shanghai) Limited and Demandware Australia Pty Limited, each of which is a wholly owned subsidiary of Demandware Hong Kong Limited.
	Initial Public Offering—In March 2012, the Company closed its initial public offering (“IPO”) in which it sold and issued 6,325,000 shares of common stock, including 825,000 shares sold pursuant to the underwriters’ option to purchase additional shares, at an offering price of $16.00 per share. The Company’s common stock is traded on the New York Stock Exchange under the symbol “DWRE”. The Company received proceeds from the IPO of $94.1 million, net of underwriting discounts and commissions, but before offering expenses of $3.1 million.
	Basis of Presentation and Significant Accounting Policies—The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) applicable to interim periods, under the rules and regulations of the United States Securities and Exchange Commission ( “SEC”), and on a basis substantially consistent with the audited consolidated financial statements of the Company as of and for the fiscal year ended December 31, 2012. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, the accompanying unaudited condensed consolidated financial statements contain all adjustments (consisting only of normal recurring adjustments) necessary for a fair presentation of the results of operations for the interim periods reported and of the Company’s financial condition as of the date of the interim balance sheet. The Company considers events or transactions that occur after the balance sheet date but before the financial statements are issued to provide additional information relative to certain estimates or to identify matters that require additional disclosure. Interim results are not necessarily indicative of the results for any other interim period or for the entire year.
	At December 31, 2012, the Company reassessed the estimated expected life of its customers and estimated it to be slightly greater than six years. Previously, the Company’s estimated expected customer life ranged from three to six years. This change in accounting estimate affected the amortization of setup fees and service implementation revenue, decreasing subscription and services revenue by $0.1 million and $0.4 million, respectively, for the three months ended September 30, 2013, and by $0.3 million and $1.2 million, respectively, for the nine months ended September 30, 2013. As a result of the change in estimated expected customer life, the Company’s loss from operations, net loss and net loss per share increased by $0.5 million, $0.5 million and $0.02, respectively, for the three months ended September 30, 2013, and by $1.4 million, $1.4 million and $0.05, respectively, for the nine months ended September 30, 2013.
	The condensed consolidated balance sheet at December 31, 2012 has been derived from the audited financial statements at that date, but does not include all of the disclosures required by GAAP. The accompanying condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K filed with the SEC on March 8, 2013.
	Recent Accounting Pronouncements—On July 18, 2013, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2013-11, “Presentation of a Liability for an Unrecognized Tax Benefit When a Net Operating Loss or Tax Credit Carryforward Exists.” This accounting update requires that an unrecognized tax benefit be presented as a reduction of a deferred tax asset for a net operating loss (“NOL”) carryforward or other tax credit carryforward when settlement in this manner is available under applicable tax law. This guidance is effective for the Company’s interim and annual periods beginning January 1, 2014. The Company does not believe the adoption of this guidance will have a material impact on the Company’s consolidated financial position, results of operations or cash flows.

Net_Loss_Per_Share_Attributabl

Net Loss Per Share Attributable to Common Stockholders	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]	'
Net Loss Per Share Attributable to Common Stockholders	'
	2. NET LOSS PER SHARE ATTRIBUTABLE TO COMMON STOCKHOLDERS
	The Company calculates basic and diluted net loss per common share by dividing the net loss adjusted for the dividend on the redeemable convertible preferred stock by the weighted average number of common shares outstanding during the period. The Company has excluded all potentially dilutive shares, which include outstanding common stock options, unvested restricted stock, the warrant for redeemable convertible preferred stock and shares under the Company’s Employee Stock Purchase Plan, from the weighted average number of common shares outstanding as their inclusion in the computation for all periods would be anti-dilutive due to net losses. The Company’s unvested restricted stock awards are not considered participating securities under the authoritative guidance since any dividends earned on unvested restricted shares are required to be returned if unvested shares are forfeited.
	The following common stock equivalents were excluded from the computation of diluted net loss per share attributable to common stockholders because they had an anti-dilutive impact (in thousands):
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
	Options to purchase common stock		3,468		4,431		3,829		4,488
	Unvested restricted stock		915		445		861		307
	Warrant		—		21		—		23
	Employee Stock Purchase Plan		15		—		5		—

Cash_Equivalents_and_ShortTerm

Cash Equivalents and Short-Term Investments	9 Months Ended
	Sep. 30, 2013
Cash And Cash Equivalents [Abstract]	'
Cash Equivalents and Short-Term Investments	'
	3. CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS
	A summary of the Company’s cash equivalents and short-term investments at September 30, 2013 is as follows (in thousands):
		Amortized		Unrealized		Unrealized			Fair
		Cost		Gains		Losses			Value
	Cash Equivalents:
	Money market funds	$	56,918	$	—	$	—		$	56,918
	Certificates of deposit		499		—		—			499
	Total	$	57,417	$	—	$	—		$	57,417
	Short-Term Investments:
	U.S. government agency bonds	$	6,704	$	2	$	—		$	6,706
	Corporate bonds and commercial paper		2,503		—		—			2,503
	Municipal securities		24,742		9		(8	)		24,743
	Certificates of deposit		11,708		—		(2	)		11,706
	Total	$	45,657	$	11	$	(10	)	$	45,658
	A summary of the Company’s cash equivalents and short-term investments at December 31, 2012 is as follows (in thousands):
		Amortized		Unrealized		Unrealized			Fair
		Cost		Gains		Losses			Value
	Cash Equivalents:
	Money market funds	$	48,089	$	—	$	—		$	48,089
	Certificates of deposit		1,933		—		—			1,933
	Municipal securities		2,070		—		—			2,070
	Total	$	52,092	$	—	$	—		$	52,092
	Short-Term Investments:
	U.S. government agency bonds	$	16,714	$	5	$	—		$	16,719
	Corporate bonds and commercial paper		15,397		2		(1	)		15,398
	Municipal securities		7,412		7		—			7,419
	Certificates of deposit		8,714		1		—			8,715
	Total	$	48,237	$	15	$	(1	)	$	48,251
	The contractual maturity dates for the Company’s available-for-sale investments that are classified as short-term investments in the consolidated balance sheets are one year or less from the respective balance sheet dates.

Fair_Value_Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2013
Fair Value Disclosures [Abstract]	'
Fair Value Measurements	'
	4. FAIR VALUE MEASUREMENTS
	Fair value is an exit price, representing the amount that would be received from the sale of an asset or paid to transfer a liability in an orderly transaction between market participants. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or liability. As a basis for considering such assumptions, GAAP establishes a three-tier value hierarchy, which prioritizes the inputs used in measuring fair value as follows: observable inputs such as quoted prices in active markets (Level 1); inputs other than the quoted prices in active markets that are observable either directly or indirectly (Level 2); and unobservable inputs in which there is little or no market data, which requires the Company to develop its own assumptions (Level 3). This hierarchy requires the Company to use observable market data, when available, and to minimize the use of unobservable inputs when determining fair value. On a recurring basis, the Company measures certain financial assets and liabilities at fair value, including the Company’s cash equivalents.
	The following table details the fair value measurements within the fair value hierarchy of the Company’s financial assets and liabilities at September 30, 2013 and December 31, 2012 (in thousands):
				Fair Value Measurements Using
		Amounts		Quoted Prices		Significant		Significant
		at Fair		in Active		Other		Unobservable
		Value		Markets for		Observable		Inputs
				Identical Assets		Inputs		(Level 3)
				(Level 1)		(Level 2)
	At September 30, 2013
	Assets—Cash Equivalents:
	Money market funds	$	56,918	$	56,918	$	—	$	—
	Certificates of deposit		499		—		499		—
	Assets—Short-Term Investments:
	U.S. government agency bonds	$	6,706	$	—	$	6,706	$	—
	Corporate bonds and commercial paper		2,503		—		2,503		—
	Municipal securities		24,743		—		24,743		—
	Certificates of deposit		11,706		—		11,706		—
	At December 31, 2012
	Assets—Cash Equivalents:
	Money market funds	$	48,089	$	48,089	$	—	$	—
	Certificates of deposit		1,933		—		1,933		—
	Municipal securities		2,070		—		2,070		—
	Assets—Short-Term Investments:
	U.S. government agency bonds	$	16,719	$	—	$	16,719	$	—
	Corporate bonds and commercial paper		15,398		—		15,398		—
	Municipal securities		7,419		—		7,419		—
	Certificates of deposit		8,715		—		8,715		—
	When developing fair value estimates, the Company maximizes the use of observable inputs and minimizes the use of unobservable inputs. When available, the Company uses quoted market prices to measure fair value. If market prices are not available, the fair value measurement is based on models that use primarily market based parameters including yield curves, volatilities, credit ratings and currency rates. In certain cases where market rate assumptions are not available, the Company is required to make judgments about assumptions market participants would use to estimate the fair value of a financial instrument.
	The valuation technique used to measure fair value for the Company’s Level 1 and Level 2 assets and liabilities is a market approach that uses prices and other relevant information generated by market transactions involving identical or comparable assets. As of September 30, 2013 and December 31, 2012, the Company did not carry any Level 3 assets or liabilities.

Debt

Debt	9 Months Ended
	Sep. 30, 2013
Debt Disclosure [Abstract]	'
Debt	'
	5. DEBT
	Equipment Notes Payable—The Company’s loan and security agreement (the “2008 Loan Agreement”) was amended in May 2009 to include a $2.0 million equipment line of credit (the “Loan”). Borrowings under the Loan could be made for eligible equipment purchases through December 31, 2009. The Loan was again amended in April 2010, June 2011, June 2012 and June 2013, which increased the available borrowings by an additional $4.0 million, $4.0 million, $3.0 million and $3.0 million, respectively. Each advance under the Loan is payable in 36 equal monthly payments of principal plus accrued interest, at an annual rate of 3.75%. The last payment on the Loan is due June 1, 2016. The 2008 Loan Agreement is secured by substantially all of the Company’s assets, except its intellectual property.
	At September 30, 2013 and December 31, 2012, the outstanding balance under the Loan was $4.0 million and $4.1 million, respectively. The carrying value of the Loan at September 30, 2013 and December 31, 2012 approximated fair value. As of September 30, 2013, the Company had $1.6 million of available borrowings under the Loan for eligible equipment purchases through April 30, 2014.
	Software Financing—In May 2012, the Company entered into a $1.8 million agreement to finance the purchase of a perpetual software license and the related first year technical support (the “Software Finance Agreement”). The Software Finance Agreement is secured by the financed assets. The financed amount is due in 12 equal quarterly payments of principal plus accrued interest, at an annual rate of 5.40% through April 1, 2015. In May 2013, the Company renewed the related technical support for a second year, increasing the financed amount by $0.5 million. At September 30, 2013 and December 31, 2012, the outstanding balance under the Software Finance Agreement was $1.1 million and $1.3 million, respectively. The carrying value of the Software Finance Agreement at September 30, 2013 and December 31, 2012 approximated fair value.

Contingencies

Contingencies	9 Months Ended
	Sep. 30, 2013
Commitments And Contingencies Disclosure [Abstract]	'
Contingencies	'
	6. CONTINGENCIES
	Litigation—In the ordinary course of business, the Company is involved in litigation incidental to its business, certain of which includes speculative claims for substantial or indeterminate amounts of damages. The Company records a liability when it believes that a loss is both probable and reasonably estimable. On a quarterly basis, the Company reviews each of its legal proceedings to determine whether it is probable, reasonably possible or remote that a liability has been incurred and, if it is at least reasonably possible, whether a range of loss can be reasonably estimated. Significant judgment is required to determine both the likelihood of there being a loss and the estimated amount of a loss. The Company’s management is not aware of any pending legal proceeding or other loss contingency, whether asserted or unasserted, affecting the Company for which it might become liable or the outcome of which management expects to have a material impact on the Company. However, the outcome of legal matters is inherently unpredictable and subject to significant uncertainties.

StockBased_Awards

Stock-Based Awards	9 Months Ended
	Sep. 30, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'
Stock-Based Awards	'
	7. STOCK-BASED AWARDS
	Stock Options—The Company’s stock options generally vest over a four-year period and expire 10 years from the date of grant. Upon the exercise of an option, the Company issues shares of common stock.
	The following table summarizes information related to stock options outstanding as of September 30, 2013 (in thousands, except per share and term information):
		Shares		Weighted-		Weighted-		Aggregate
				Average		Average		Intrinsic
				Exercise		Remaining		Value
				Price		Contractual
						Life
						(in Years)
	Exercisable as of September 30, 2013		2,104	$	5.73		6.56	$	85,420
	Options vested and expected to vest as of September 30, 2013		3,185		11.21		7.12		111,885
	Unrecognized compensation expense relating to stock options was $13.3 million at September 30, 2013, which is expected to be recognized over a weighted-average period of approximately three years.
	Restricted Stock Awards—The Company’s restricted stock awards generally vest over a two- or four-year period and upon vesting, the Company issues shares of common stock. Unrecognized compensation expense relating to restricted stock awards was $24.9 million at September 30, 2013, which is expected to be recognized over a weighted-average period of approximately three years.
	Employee Stock Purchase Plan— The Employee Stock Purchase Plan (“ESPP”) and its foreign corollaries permit eligible employees to purchase up to a maximum of 400,000 shares of our common stock through accumulated payroll deductions, commencing on July 1, 2013. Each offering is a six month period (a “Plan Period”), and the purchase price of the stock is equal to 85% of the lesser of the market value of such shares at the first or last business day of a Plan Period.
	Stock-Based Compensation—Stock-based compensation cost is measured at the grant date, based on the fair value of the award, and is recognized as an expense over the service period (generally the vesting period of the equity grant). The Company estimates forfeitures at the time of grant and revises the estimates, if necessary, in subsequent periods if actual forfeitures differ from those estimates. The following table presents stock-based compensation expense included in the Company’s consolidated statements of operations and comprehensive loss (in thousands):
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
	Cost of subscription revenue	$	84	$	57	$	294	$	119
	Cost of service revenue		274		233		889		492
	Sales and marketing		1,055		559		3,130		1,236
	Research and development		815		484		2,550		1,035
	General and administration		1,261		856		3,970		1,920
	Total	$	3,489	$	2,189	$	10,833	$	4,802
	Stock-based compensation cost for the three months ended September 30, 2013 and 2012 includes $2.0 million and $0.9 million, respectively, related to restricted stock, and $0.1 million and $0.0 million, respectively, related to the ESPP. Stock-based compensation cost for the nine months ended September 30, 2013 and 2012 includes $6.0 million and $1.9 million, respectively, related to restricted stock, and $0.1 million and $0.0 million, respectively, related to the ESPP. The remaining expense for each period relates to stock options.

Income_Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2013
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	8. INCOME TAXES
	The Company’s income tax provisions for the three and nine months then ended September 30, 2013 and 2012 reflects its estimates of the effective tax rates expected to be applicable for the full fiscal years, adjusted for any discrete events which are recorded in the period they occur. The estimates are reevaluated each quarter based on the Company’s estimated tax expense for the full fiscal year.
	The Company has evaluated the positive and negative evidence bearing upon the realizability of its deferred tax assets. Management has determined that it is more likely than not that the Company will not utilize the benefits of federal and state deferred tax assets for financial reporting purposes. Accordingly, the deferred tax assets have been fully reserved at September 30, 2013 and December 31, 2012.
	The Company files federal, state, and foreign income tax returns in jurisdictions with varying statutes of limitations. With few exceptions, all tax years 2004 through 2012 remain subject to examination by federal and certain state tax authorities due to the Company’s net operating loss carryforwards. The Company is subject to examination by various foreign jurisdictions for years after 2008. The Company believes it has adequately reserved for its uncertain tax positions; however, there is no assurance that taxing authorities will not propose adjustments that are more or less than its expected outcome. It is not expected that the amount of unrecognized tax benefits will be recognized in the next twelve months. In addition, the Company does not expect the change in uncertain tax positions to have a material impact on its financial position, results of operations or liquidity.

Organization_and_Summary_of_Si1

Organization and Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2013
Accounting Policies [Abstract]	'
Basis of Presentation and Significant Accounting Policies	'
	Basis of Presentation and Significant Accounting Policies—The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) applicable to interim periods, under the rules and regulations of the United States Securities and Exchange Commission ( “SEC”), and on a basis substantially consistent with the audited consolidated financial statements of the Company as of and for the fiscal year ended December 31, 2012. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, the accompanying unaudited condensed consolidated financial statements contain all adjustments (consisting only of normal recurring adjustments) necessary for a fair presentation of the results of operations for the interim periods reported and of the Company’s financial condition as of the date of the interim balance sheet. The Company considers events or transactions that occur after the balance sheet date but before the financial statements are issued to provide additional information relative to certain estimates or to identify matters that require additional disclosure. Interim results are not necessarily indicative of the results for any other interim period or for the entire year.
	At December 31, 2012, the Company reassessed the estimated expected life of its customers and estimated it to be slightly greater than six years. Previously, the Company’s estimated expected customer life ranged from three to six years. This change in accounting estimate affected the amortization of setup fees and service implementation revenue, decreasing subscription and services revenue by $0.1 million and $0.4 million, respectively, for the three months ended September 30, 2013, and by $0.3 million and $1.2 million, respectively, for the nine months ended September 30, 2013. As a result of the change in estimated expected customer life, the Company’s loss from operations, net loss and net loss per share increased by $0.5 million, $0.5 million and $0.02, respectively, for the three months ended September 30, 2013, and by $1.4 million, $1.4 million and $0.05, respectively, for the nine months ended September 30, 2013.
	The condensed consolidated balance sheet at December 31, 2012 has been derived from the audited financial statements at that date, but does not include all of the disclosures required by GAAP. The accompanying condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K filed with the SEC on March 8, 2013.
Recent Accounting Pronouncements	'
	Recent Accounting Pronouncements—On July 18, 2013, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2013-11, “Presentation of a Liability for an Unrecognized Tax Benefit When a Net Operating Loss or Tax Credit Carryforward Exists.” This accounting update requires that an unrecognized tax benefit be presented as a reduction of a deferred tax asset for a net operating loss (“NOL”) carryforward or other tax credit carryforward when settlement in this manner is available under applicable tax law. This guidance is effective for the Company’s interim and annual periods beginning January 1, 2014. The Company does not believe the adoption of this guidance will have a material impact on the Company’s consolidated financial position, results of operations or cash flows.

Net_Loss_Per_Share_Attributabl1

Net Loss Per Share Attributable to Common Stockholders (Tables)	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]	'
Shares Excluded from Computation of Diluted Net Loss Per Share Attributable to Common Stockholders	'
	The following common stock equivalents were excluded from the computation of diluted net loss per share attributable to common stockholders because they had an anti-dilutive impact (in thousands):
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
	Options to purchase common stock		3,468		4,431		3,829		4,488
	Unvested restricted stock		915		445		861		307
	Warrant		—		21		—		23
	Employee Stock Purchase Plan		15		—		5		—

Cash_Equivalents_and_ShortTerm1

Cash Equivalents and Short-Term Investments (Tables)	9 Months Ended
	Sep. 30, 2013
Cash And Cash Equivalents [Abstract]	'
Cash Equivalents and Available-for-Sale Investments	'
	A summary of the Company’s cash equivalents and short-term investments at September 30, 2013 is as follows (in thousands):
		Amortized		Unrealized		Unrealized			Fair
		Cost		Gains		Losses			Value
	Cash Equivalents:
	Money market funds	$	56,918	$	—	$	—		$	56,918
	Certificates of deposit		499		—		—			499
	Total	$	57,417	$	—	$	—		$	57,417
	Short-Term Investments:
	U.S. government agency bonds	$	6,704	$	2	$	—		$	6,706
	Corporate bonds and commercial paper		2,503		—		—			2,503
	Municipal securities		24,742		9		(8	)		24,743
	Certificates of deposit		11,708		—		(2	)		11,706
	Total	$	45,657	$	11	$	(10	)	$	45,658
	A summary of the Company’s cash equivalents and short-term investments at December 31, 2012 is as follows (in thousands):
		Amortized		Unrealized		Unrealized			Fair
		Cost		Gains		Losses			Value
	Cash Equivalents:
	Money market funds	$	48,089	$	—	$	—		$	48,089
	Certificates of deposit		1,933		—		—			1,933
	Municipal securities		2,070		—		—			2,070
	Total	$	52,092	$	—	$	—		$	52,092
	Short-Term Investments:
	U.S. government agency bonds	$	16,714	$	5	$	—		$	16,719
	Corporate bonds and commercial paper		15,397		2		(1	)		15,398
	Municipal securities		7,412		7		—			7,419
	Certificates of deposit		8,714		1		—			8,715
	Total	$	48,237	$	15	$	(1	)	$	48,251

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2013
Fair Value Disclosures [Abstract]	'
Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis	'
	The following table details the fair value measurements within the fair value hierarchy of the Company’s financial assets and liabilities at September 30, 2013 and December 31, 2012 (in thousands):
				Fair Value Measurements Using
		Amounts		Quoted Prices		Significant		Significant
		at Fair		in Active		Other		Unobservable
		Value		Markets for		Observable		Inputs
				Identical Assets		Inputs		(Level 3)
				(Level 1)		(Level 2)
	At September 30, 2013
	Assets—Cash Equivalents:
	Money market funds	$	56,918	$	56,918	$	—	$	—
	Certificates of deposit		499		—		499		—
	Assets—Short-Term Investments:
	U.S. government agency bonds	$	6,706	$	—	$	6,706	$	—
	Corporate bonds and commercial paper		2,503		—		2,503		—
	Municipal securities		24,743		—		24,743		—
	Certificates of deposit		11,706		—		11,706		—
	At December 31, 2012
	Assets—Cash Equivalents:
	Money market funds	$	48,089	$	48,089	$	—	$	—
	Certificates of deposit		1,933		—		1,933		—
	Municipal securities		2,070		—		2,070		—
	Assets—Short-Term Investments:
	U.S. government agency bonds	$	16,719	$	—	$	16,719	$	—
	Corporate bonds and commercial paper		15,398		—		15,398		—
	Municipal securities		7,419		—		7,419		—
	Certificates of deposit		8,715		—		8,715		—

StockBased_Awards_Tables

Stock-Based Awards (Tables)	9 Months Ended
	Sep. 30, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'
Summary of Stock Options Outstanding	'
	The following table summarizes information related to stock options outstanding as of September 30, 2013 (in thousands, except per share and term information):
		Shares		Weighted-		Weighted-		Aggregate
				Average		Average		Intrinsic
				Exercise		Remaining		Value
				Price		Contractual
						Life
						(in Years)
	Exercisable as of September 30, 2013		2,104	$	5.73		6.56	$	85,420
	Options vested and expected to vest as of September 30, 2013		3,185		11.21		7.12		111,885
Stock-Based Compensation Expense	'
	The following table presents stock-based compensation expense included in the Company’s consolidated statements of operations and comprehensive loss (in thousands):
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
	Cost of subscription revenue	$	84	$	57	$	294	$	119
	Cost of service revenue		274		233		889		492
	Sales and marketing		1,055		559		3,130		1,236
	Research and development		815		484		2,550		1,035
	General and administration		1,261		856		3,970		1,920
	Total	$	3,489	$	2,189	$	10,833	$	4,802

Organization_and_Summary_of_Si2

Organization and Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	1 Months Ended	3 Months Ended	9 Months Ended		3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended	12 Months Ended
	Mar. 31, 2012	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2013	Dec. 31, 2012
			Subsidiary		Subscription Revenue [Member]	Subscription Revenue [Member]	Cost of Services Revenue [Member]	Cost of Services Revenue [Member]	Customer Relationships [Member]
									Maximum [Member]
Accounting Policies [Line Items]	'	'	'	'	'	'	'	'	'
Number of subsidiaries owned	'	'	7	'	'	'	'	'	'
Initial public offering of common stock	6,325,000	'	'	'	'	'	'	'	'
Common stock pursuant to underwriters' option	825,000	'	'	'	'	'	'	'	'
Public offering price per share	$16	'	'	'	'	'	'	'	'
Proceeds from common stock initial public offering	$94,100,000	'	'	$94,116,000	'	'	'	'	'
Offering expenses	3,100,000	'	'	'	'	'	'	'	'
Change in Accounting Estimate, Financial Effect	'	'	'	'	'	'	'	'	'The Company reassessed the estimated expected life of its customers, and estimated it to be slightly greater than six years. Previously, the Company's estimated expected customer life ranged from three to six years
Decreasing revenue	'	'	'	'	-100,000	-300,000	-400,000	-1,200,000	'
Loss from operations	'	-500,000	-1,400,000	'	'	'	'	'	'
Net loss increased	'	($500,000)	($1,400,000)	'	'	'	'	'	'
Net loss per share	'	($0.02)	($0.05)	'	'	'	'	'	'

Net_Loss_Per_Share_Attributabl2

Net Loss Per Share Attributable to Common Stockholders - Shares Excluded from Computation of Diluted Net loss Per Share Attributable to Common Stockholders (Detail)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Stock Option [Member]	'	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'	'	'
Antidilutive securities	3,468	4,431	3,829	4,488
Restricted Stock Awards [Member]	'	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'	'	'
Antidilutive securities	915	445	861	307
Warrant [Member]	'	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'	'	'
Antidilutive securities	'	21	'	23
ESPP [Member]	'	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'	'	'
Antidilutive securities	15	'	5	'

Cash_Equivalents_and_ShortTerm2

Cash Equivalents and Short-Term Investments - Cash Equivalents and Available-for-Sale Investments (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Cash And Short Term Investments [Line Items]	'	'
Short-Term Investments - Fair Value	$45,658	$48,251
Cash Equivalents [Member]	'	'
Cash And Short Term Investments [Line Items]	'	'
Cash Equivalents - Amortized Cost	57,417	52,092
Unrealized Gains	'	'
Unrealized Losses	'	'
Cash Equivalents - Fair Value	57,417	52,092
Cash Equivalents [Member] | Money Market Funds [Member]	'	'
Cash And Short Term Investments [Line Items]	'	'
Cash Equivalents - Amortized Cost	56,918	48,089
Unrealized Gains	'	'
Unrealized Losses	'	'
Cash Equivalents - Fair Value	56,918	48,089
Cash Equivalents [Member] | Certificates of Deposit [Member]	'	'
Cash And Short Term Investments [Line Items]	'	'
Cash Equivalents - Amortized Cost	499	1,933
Unrealized Gains	'	'
Unrealized Losses	'	'
Cash Equivalents - Fair Value	499	1,933
Cash Equivalents [Member] | Municipal Securities [Member]	'	'
Cash And Short Term Investments [Line Items]	'	'
Cash Equivalents - Amortized Cost	'	2,070
Unrealized Gains	'	'
Unrealized Losses	'	'
Cash Equivalents - Fair Value	'	2,070
Short-Term Investments [Member]	'	'
Cash And Short Term Investments [Line Items]	'	'
Short-Term Investments - Amortized Cost	45,657	48,237
Unrealized Gains	11	15
Unrealized Losses	-10	-1
Short-Term Investments - Fair Value	45,658	48,251
Short-Term Investments [Member] | Certificates of Deposit [Member]	'	'
Cash And Short Term Investments [Line Items]	'	'
Short-Term Investments - Amortized Cost	11,708	8,714
Unrealized Gains	'	1
Unrealized Losses	-2	'
Short-Term Investments - Fair Value	11,706	8,715
Short-Term Investments [Member] | Municipal Securities [Member]	'	'
Cash And Short Term Investments [Line Items]	'	'
Short-Term Investments - Amortized Cost	24,742	7,412
Unrealized Gains	9	7
Unrealized Losses	-8	'
Short-Term Investments - Fair Value	24,743	7,419
Short-Term Investments [Member] | U.S. Government Agency Bonds [Member]	'	'
Cash And Short Term Investments [Line Items]	'	'
Short-Term Investments - Amortized Cost	6,704	16,714
Unrealized Gains	2	5
Unrealized Losses	'	'
Short-Term Investments - Fair Value	6,706	16,719
Short-Term Investments [Member] | Corporate Bonds and Commercial Paper [Member]	'	'
Cash And Short Term Investments [Line Items]	'	'
Short-Term Investments - Amortized Cost	2,503	15,397
Unrealized Gains	'	2
Unrealized Losses	'	-1
Short-Term Investments - Fair Value	$2,503	$15,398

Cash_Equivalents_and_ShortTerm3

Cash Equivalents and Short-Term Investments - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2013
Cash And Cash Equivalents [Abstract]	'
Contractual maturity expiration dates	'1 year

Fair_Value_Measurements_Schedu

Fair Value Measurements - Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets-Short-Term Investments	$45,658	$48,251
Cash Equivalents [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets-Cash Equivalents	57,417	52,092
Cash Equivalents [Member] | Money Market Funds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets-Cash Equivalents	56,918	48,089
Cash Equivalents [Member] | Certificates of Deposit [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets-Cash Equivalents	499	1,933
Cash Equivalents [Member] | Municipal Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets-Cash Equivalents	'	2,070
Short-Term Investments [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets-Short-Term Investments	45,658	48,251
Short-Term Investments [Member] | Certificates of Deposit [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets-Short-Term Investments	11,706	8,715
Short-Term Investments [Member] | Municipal Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets-Short-Term Investments	24,743	7,419
Short-Term Investments [Member] | U.S. Government Agency Bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets-Short-Term Investments	6,706	16,719
Short-Term Investments [Member] | Corporate Bonds and Commercial Paper [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets-Short-Term Investments	2,503	15,398
Fair Value Measurements Using Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Cash Equivalents [Member] | Money Market Funds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets-Cash Equivalents	56,918	48,089
Fair Value Measurements Using Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Cash Equivalents [Member] | Certificates of Deposit [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets-Cash Equivalents	'	'
Fair Value Measurements Using Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Cash Equivalents [Member] | Municipal Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets-Cash Equivalents	'	'
Fair Value Measurements Using Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Short-Term Investments [Member] | Certificates of Deposit [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets-Short-Term Investments	'	'
Fair Value Measurements Using Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Short-Term Investments [Member] | Municipal Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets-Short-Term Investments	'	'
Fair Value Measurements Using Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Short-Term Investments [Member] | U.S. Government Agency Bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets-Short-Term Investments	'	'
Fair Value Measurements Using Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Short-Term Investments [Member] | Corporate Bonds and Commercial Paper [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets-Short-Term Investments	'	'
Fair Value Measurements Using Significant Other Observable Inputs (Level 2) [Member] | Cash Equivalents [Member] | Money Market Funds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets-Cash Equivalents	'	'
Fair Value Measurements Using Significant Other Observable Inputs (Level 2) [Member] | Cash Equivalents [Member] | Certificates of Deposit [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets-Cash Equivalents	499	1,933
Fair Value Measurements Using Significant Other Observable Inputs (Level 2) [Member] | Cash Equivalents [Member] | Municipal Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets-Cash Equivalents	'	2,070
Fair Value Measurements Using Significant Other Observable Inputs (Level 2) [Member] | Short-Term Investments [Member] | Certificates of Deposit [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets-Short-Term Investments	11,706	8,715
Fair Value Measurements Using Significant Other Observable Inputs (Level 2) [Member] | Short-Term Investments [Member] | Municipal Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets-Short-Term Investments	24,743	7,419
Fair Value Measurements Using Significant Other Observable Inputs (Level 2) [Member] | Short-Term Investments [Member] | U.S. Government Agency Bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets-Short-Term Investments	6,706	16,719
Fair Value Measurements Using Significant Other Observable Inputs (Level 2) [Member] | Short-Term Investments [Member] | Corporate Bonds and Commercial Paper [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets-Short-Term Investments	2,503	15,398
Fair Value Measurements Using Significant Unobservable Inputs (Level 3) [Member] | Cash Equivalents [Member] | Money Market Funds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets-Cash Equivalents	'	'
Fair Value Measurements Using Significant Unobservable Inputs (Level 3) [Member] | Cash Equivalents [Member] | Certificates of Deposit [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets-Cash Equivalents	'	'
Fair Value Measurements Using Significant Unobservable Inputs (Level 3) [Member] | Cash Equivalents [Member] | Municipal Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets-Cash Equivalents	'	'
Fair Value Measurements Using Significant Unobservable Inputs (Level 3) [Member] | Short-Term Investments [Member] | Certificates of Deposit [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets-Short-Term Investments	'	'
Fair Value Measurements Using Significant Unobservable Inputs (Level 3) [Member] | Short-Term Investments [Member] | Municipal Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets-Short-Term Investments	'	'
Fair Value Measurements Using Significant Unobservable Inputs (Level 3) [Member] | Short-Term Investments [Member] | U.S. Government Agency Bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets-Short-Term Investments	'	'
Fair Value Measurements Using Significant Unobservable Inputs (Level 3) [Member] | Short-Term Investments [Member] | Corporate Bonds and Commercial Paper [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets-Short-Term Investments	'	'

Debt_Additional_Information_De

Debt - Additional Information (Detail) (USD $)

Sep. 30, 2013

Dec. 31, 2012

Jun. 30, 2013

Jun. 30, 2012

Jun. 30, 2011

Apr. 30, 2010

Sep. 30, 2013

30-May-09

31-May-13

31-May-12

Sep. 30, 2013

Dec. 31, 2012

In Millions, unless otherwise specified

Equipment Line of Credit [Member]

Equipment Line of Credit [Member]

Equipment Line of Credit [Member]

Equipment Line of Credit [Member]

Equipment Line of Credit [Member]

Equipment Line of Credit [Member]

Software Finance Agreement [Member]

Software Finance Agreement [Member]

Software Finance Agreement [Member]

Software Finance Agreement [Member]

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Equipment line of credit

'

'

'

'

'

'

'

$2

'

'

'

'

Increase in available equipment line of credit borrowings

'

'

3

3

4

4

'

'

'

'

'

'

Initial drawdown of loan due in equal monthly payments

'

'

'

'

'

'

'36

'

'

'

'

'

Annual interest rate

'

'

'

'

'

'

3.75%

'

'

5.40%

'

'

Outstanding balance under the Software Finance Agreement

4

4.1

'

'

'

'

'

'

'

'

1.1

1.3

Available borrowings under the Loan for eligible equipment purchases

1.6

'

'

'

'

'

'

'

'

'

'

'

Purchase of software license

'

'

'

'

'

'

'

'

'

1.8

'

'

Frequency of payments

'

'

'

'

'

'

'

'

'

'12 equal quarterly payments

'

'

Agreement Expiration Date

'

'

'

'

'

'

'

'

'

'

1-Apr-15

'

Increased Financed amount

'

'

'

'

'

'

'

'

$0.50

'

'

'

StockBased_Awards_Additional_I

Stock-Based Awards - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Stock-based compensation cost	$3,489,000	$2,189,000	$10,833,000	$4,802,000
Stock Option [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Share-based compensation vesting period	'	'	'4 years	'
Stock options grant expiration period	'	'	'10 years	'
Restricted Stock Awards [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Weighted average period	'	'	'3 years	'
Unrecognized compensation expense	24,900,000	'	24,900,000	'
Stock-based compensation cost	2,000,000	900,000	6,000,000	1,900,000
Restricted Stock Awards [Member] | Minimum [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Share-based compensation vesting period	'	'	'2 years	'
Restricted Stock Awards [Member] | Maximum [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Share-based compensation vesting period	'	'	'4 years	'
Stock Option Plan [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Unrecognized compensation expense	13,300,000	'	13,300,000	'
Weighted average period	'	'	'3 years	'
ESPP [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Maximum shares purchase under employee stock purchase plan	400,000	'	400,000	'
Percentage purchase price of stock under employee stock purchase plan	'	'	85.00%	'
Stock-based compensation cost	$100,000	$0	$100,000	$0

StockBased_Awards_Summary_of_S

Stock-Based Awards - Summary of Stock Options Outstanding (Detail) (USD $)	9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'
Exercisable, Shares	2,104
Options vested and expected to vest, Shares	3,185
Exercisable, Weighted-Average Exercise Price	$5.73
Options vested and expected to vest, Weighted-Average Exercise Price	$11.21
Exercisable, Weighted-Average Remaining Contractual Life (in Years)	'6 years 6 months 22 days
Options vested and expected to vest, Weighted-Average Remaining Contractual Life (in Years)	'7 years 1 month 13 days
Exercisable, Aggregate Intrinsic Value	$85,420
Options vested and expected to vest, Aggregate Intrinsic Value	$111,885

StockBased_Awards_StockBased_C

Stock-Based Awards - Stock-Based Compensation Expense (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Stock-based compensation cost	$3,489	$2,189	$10,833	$4,802
Cost of Subscription Revenue [Member]	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Stock-based compensation cost	84	57	294	119
Cost of Services Revenue [Member]	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Stock-based compensation cost	274	233	889	492
Sales and Marketing [Member]	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Stock-based compensation cost	1,055	559	3,130	1,236
Research and Development [Member]	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Stock-based compensation cost	815	484	2,550	1,035
General and Administration [Member]	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Stock-based compensation cost	$1,261	$856	$3,970	$1,920