HubSpot (HUBS) 10-Q 4 Nov 15 2015 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2015	Oct. 30, 2015
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2015
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	Q3
Trading Symbol	HUBS
Entity Registrant Name	HUBSPOT INC
Entity Central Index Key	1,404,655
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		34,096,619

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 58,809	$ 123,721
Short-term investments	45,697	0
Accounts receivable — net of allowance for doubtful accounts of $277 and $218 at September 30, 2015 and December 31, 2014, respectively	19,769	14,270
Deferred commission expense	6,644	5,995
Restricted cash	213	230
Prepaid hosting costs	1,593	1,777
Prepaid expenses and other current assets	4,598	3,516
Total current assets	137,323	149,509
Long-term investments	43,498	0
Property and equipment, net	11,840	11,381
Capitalized software development costs, net	4,468	4,433
Restricted cash	347	0
Other assets	462	116
Intangible assets, net	126	89
Goodwill	9,773	9,330
Total assets	207,837	174,858
Current liabilities:
Accounts payable	2,577	2,800
Accrued compensation costs	8,421	7,660
Other accrued expenses	12,208	7,953
Capital lease obligations	397	100
Deferred rent	87	110
Deferred revenue	54,390	40,805
Total current liabilities	78,080	59,428
Capital lease obligations, net of current portion	216	78
Deferred rent, net of current portion	4,759	4,153
Deferred revenue, net of current portion	608	500
Total liabilities	$ 83,663	$ 64,159
Commitments and contingencies (Note 7)
Stockholders’ equity:
Common stock	$ 34	$ 32
Additional paid-in capital	314,787	265,113
Accumulated other comprehensive loss	(544)	(145)
Accumulated deficit	(190,103)	(154,301)
Total stockholders’ equity	124,174	110,699
Total liabilities and stockholders’ equity	$ 207,837	$ 174,858

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Statement Of Financial Position [Abstract]
Accounts receivable, net of allowance for doubtful accounts	$ 277	$ 218

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenues:
Subscription	$ 44,091	$ 27,806	$ 118,303	$ 74,994
Professional services and other	3,620	2,642	10,514	6,726
Total revenue	47,711	30,448	128,817	81,720
Cost of Revenues:
Subscription	8,470	6,236	22,894	17,000
Professional services and other	4,008	2,969	11,322	8,149
Total cost of revenues	12,478	9,205	34,216	25,149
Gross profit	35,233	21,243	94,601	56,571
Operating expenses:
Research and development	8,128	4,858	23,787	14,498
Sales and marketing	30,868	21,680	81,057	54,700
General and administrative	9,527	5,662	25,782	16,030
Total operating expenses	48,523	32,200	130,626	85,228
Loss from operations	(13,290)	(10,957)	(36,025)	(28,657)
Other (expense) income:
Interest income	131	0	241	4
Interest expense	(31)	(138)	(140)	(259)
Other (expense) income	(186)	302	387	379
Total other (expense) income	(86)	164	488	124
Loss before provision for income taxes	(13,376)	(10,793)	(35,537)	(28,533)
Provision for income taxes	(176)	0	(265)	0
Net loss	(13,552)	(10,793)	(35,802)	(28,533)
Preferred stock accretion	0	(13)	0	(40)
Net loss attributable to common stockholders	$ (13,552)	$ (10,806)	$ (35,802)	$ (28,573)
Net loss attributable to common stockholders per share, basic and diluted	$ (0.40)	$ (1.84)	$ (1.09)	$ (5)
Weighted average common shares used in computing basic and diluted net loss attributable to common stockholders per share:	33,819	5,874	32,901	5,715

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (13,552)	$ (10,793)	$ (35,802)	$ (28,533)
Other comprehensive loss:
Foreign currency translation adjustment	(10)	(25)	(162)	(27)
Changes in unrealized losses on investments	(77)	0	(237)	0
Comprehensive loss	$ (13,639)	$ (10,818)	$ (36,201)	$ (28,560)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Operating Activities:
Net loss	$ (35,802)	$ (28,533)
Adjustments to reconcile net loss to net cash and cash equivalents used in operating activities
Depreciation and amortization	5,511	4,824
Stock-based compensation	15,293	3,514
Provision for deferred income taxes	45	0
Provision for doubtful accounts	917	452
Amortization of bond premium discount	438	0
Noncash rent expense	211	236
Unrealized currency translation	(239)	(238)
Changes in assets and liabilities
Accounts receivable	(6,633)	(3,864)
Prepaid expenses and other assets	(1,277)	146
Deferred commission expense	(649)	(846)
Accounts payable	(84)	(328)
Accrued expenses	4,533	2,192
Restricted cash	0	157
Deferred rent	379	1,427
Deferred revenue	14,294	10,149
Net cash and cash equivalents used in operating activities	(3,063)	(10,712)
Investing Activities:
Purchases of investments	(93,869)	0
Maturities of investments	4,000	0
Purchases of property and equipment	(2,182)	(5,892)
Capitalization of software development costs	(3,125)	(3,930)
Acquisition of a business	(600)	0
Acquisition of intangible assets	0	(80)
Restricted cash	(388)	1,500
Net cash and cash equivalents used in investing activities	(96,164)	(8,402)
Financing Activities:
Secondary offering proceeds, net of offering costs paid of $583	33,669	0
Proceeds from draw-down on line of credit	0	18,000
Employee taxes paid related to the net share settlement of stock-based awards	(8,217)	0
Proceeds related to the issuance of common stock under stock plans	9,256	3,051
Payment of deferred initial public offering costs	0	(1,990)
Repayments of capital lease obligations	(107)	(97)
Net cash and cash equivalents provided by financing activities	34,601	18,964
Effect of exchange rate changes on cash and cash equivalents	(286)	(114)
Net decrease in cash and cash equivalents	(64,912)	(264)
Cash and cash equivalents, beginning of period	123,721	12,643
Cash and cash equivalents, end of period	58,809	12,379
Supplemental cash flow disclosure:
Cash and cash equivalents paid for interest	139	163
Non-cash investing and financing activities:
Property acquired under capital lease	542	0
Offering costs incurred but not yet paid	0	522
Capital expenditures incurred but not yet paid	0	182
Accretion of preferred stock	$ 0	$ 40

Consolidated Statements of Cas7

Consolidated Statements of Cash Flows (Parenthetical) $ in Thousands	9 Months Ended
	Sep. 30, 2015USD ($)
Statement Of Cash Flows [Abstract]
Offering costs paid on secondary offering	$ 583

Organization and Operations

Organization and Operations	9 Months Ended
	Sep. 30, 2015
Accounting Policies [Abstract]
Organization and Operations	1. Organization and Operations HubSpot, Inc. (the “Company”), was formed as a limited liability company in Delaware on April 4, 2005. The Company converted to a Delaware corporation on June 7, 2007. The Company provides a cloud-based inbound marketing and sales platform which features integrated applications to help businesses attract visitors to their websites, convert visitors into leads, close leads into customers and delight customers so they become promoters of those businesses. These integrated applications include social media, search engine optimization, blogging, website content management, marketing automation, email, CRM, analytics, and reporting. The Company is headquartered in Cambridge, Massachusetts, and has wholly-owned subsidiaries in Dublin, Ireland, which commenced operations in January of 2013 and in Sydney, Australia, which commenced operations in August of 2014. On March 24, 2015, the Company closed a common stock public offering whereby 971,891 shares of common stock were sold to the public, including the underwriters’ overallotment option of 121,891 shares of common stock, at a price of $37.00 per share. The Company received aggregate proceeds of approximately $34.3 million from the offering, net of underwriters’ discounts and commissions, but before deduction of offering expenses of approximately $583 thousand. The accompanying unaudited 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”). In the opinion of management the Company had prepared the accompanying unaudited financial statements on a basis substantially consistent with the audited consolidated financial statements of the Company as of and for the fiscal year ended December 31, 2014, and these financial statements include all adjustments, consisting only of normal recurring adjustments, necessary for a fair presentation of the results of the interim periods presented. All intercompany balances and transactions have been eliminated in consolidation. The results of operations for the interim periods presented are not necessarily indicative of the results to be expected for any subsequent quarter or for the entire year ending December 31, 2015. The year-end balance sheet data was derived from audited financial statements, but this Form 10-Q does not include all disclosures required under GAAP. Certain information and note disclosures normally included in annual financial statements prepared in accordance with GAAP have been omitted under the rules and regulations of the SEC. These interim financial statements should be read in conjunction with the audited consolidated financial statements and related notes contained in the Company’s Annual Report on Form 10-K filed with the SEC on March 5, 2015. There have been no changes in the Company’s significant accounting policies from those that were disclosed in the Company’s Annual Report on Form 10-K that have had a material impact on our consolidated financial statements and related notes other than the addition of investments described below. Investments Investments consist of corporate debt securities. Securities having remaining maturities of more than three months at the date of purchase and less than one year from the date of the balance sheets are classified as short-term, and those with maturities of more than one year from the date of the balance sheet are classified as long-term in the consolidated balance sheets. The Company classifies its debt investments with readily determinable market values as available-for-sale. These investments are classified as investments on the consolidated balance sheets and are carried at fair market value, with unrealized gains and losses considered to be temporary in nature reported as accumulated other comprehensive income (loss), a separate component of stockholders’ equity. The Company reviews all investments for reductions in fair value that are other-than-temporary. When such reductions occur, the cost of the investment is adjusted to fair value through recording a loss on investments in the consolidated statements of operations. Gains and losses on investments are calculated on the basis of specific identification. Investments are considered to be impaired when a decline in fair value below cost basis is determined to be other-than-temporary. The Company periodically evaluates whether a decline in fair value below cost basis is other-than-temporary by considering available evidence regarding these investments including, among other factors: the duration of the period that, and extent to which, the fair value is less than cost basis; the financial health of, and business outlook for the issuer, including industry and sector performance and operational and financing cash flow factors; overall market conditions and trends and the Company’s intent and ability to retain its investment in the security for a period of time sufficient to allow for an anticipated recovery in market value. Once a decline in fair value is determined to be other-than-temporary, a write-down is recorded and a new cost basis in the security is established. Assessing the above factors involves inherent uncertainty. Write-downs, if recorded, could be materially different from the actual market performance of investments in the Company’s portfolio if, among other things, relevant information related to the investment was not publicly available. Recent Accounting Pronouncements In May 2014, the Financial Accounting Standards Board (FASB) issued updated guidance and disclosure requirements for recognizing revenue. The new revenue recognition standard provides a five-step analysis of transactions to determine when and how revenue is recognized. The core principle is that a company 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. In July 2015, the FASB approved the deferral of the new standard's effective date by one year. The new standard now is effective for annual reporting periods beginning January 1, 2018. The FASB will permit companies to adopt the new standard early, but not before the original effective date of January 1, 2017 In June 2014, the FASB issued a standards update on accounting for share-based payments when the terms of the award provide that a performance target could be achieved after a requisite service period. The standard is effective beginning January 1, 2016, with early adoption permitted. We do not expect it to have a material impact on our consolidated financial position, results of operations or cash flows. Reclassifications Certain prior year amounts have been reclassified to conform with the current year’s presentation. During the three and nine months ended September 30, 2015, the Company classified $729 thousand and $2.1 million, respectively, of credit card fees associated with customer payments within general and administrative expenses on the consolidated statement of operations. Accordingly, the Company reclassified $500 thousand of credit card fees associated with customer payments for the three months ended September 30, 2014 and $1.4 million for the nine months ended September 30, 2014 from cost of revenues, subscription to general and administrative expenses to confirm with this presentation. The Company will also reclassify credit card fees of $593 thousand for the three months ended December 31, 2014.

Net Loss per Share

Net Loss per Share	9 Months Ended
	Sep. 30, 2015
Earnings Per Share [Abstract]
Net Loss per Share	2. Net Loss per Share Basic net loss attributable to common stockholders per share is computed by dividing net loss attributable to common stockholders by the weighted average number of common shares outstanding for the period. Diluted net loss attributable to common stockholders per share is computed by giving effect to all potential dilutive common stock equivalents outstanding for the period. For purposes of this calculation, options to purchase common stock, common stock warrants, restricted stock units (“RSUs”) and redeemable convertible preferred stock are considered to be potential common stock equivalents. The Company applied the two-class method to calculate its basic and diluted net loss per share of common stock for the three and nine months ended September 30, 2014, as its convertible preferred stock and common stock are participating securities. The two-class method is an earnings allocation formula that treats a participating security as having rights to earnings that otherwise would have been available to common stockholders. However, the two-class method does not impact the net loss per share of common stock as the Company was in a loss position for the three and nine months ended September 30, 2014 and preferred stockholders did not participate in losses. A reconciliation of the denominator used in the calculation of basic and diluted loss attributable to common stockholders per share is as follows: For the Three Months Ended September 30, For the Nine Months Ended September 30, 2015 2014 2015 2014 Net loss attributable to common stockholders $ (13,552 ) $ (10,806 ) $ (35,802 ) $ (28,573 ) Weighted-average common shares outstanding — basic 33,819 5,874 32,901 5,715 Dilutive effect of share equivalents resulting from stock options, RSUs, common stock warrants, and redeemable convertible preferred shares (as converted) — — — — Weighted-average common shares, outstanding — diluted 33,819 5,874 32,901 5,715 Net loss attributable to common stockholders per share, basic and diluted $ (0.40 ) $ (1.84 ) $ (1.09 ) $ (5.00 ) Additionally, since the Company incurred net losses for each of the periods presented, diluted net loss attributable to common stockholders per share is the same as basic net loss attributable to common stockholders per share. The Company’s outstanding stock options, RSUs, common stock warrants, and redeemable convertible preferred stock were not included in the calculation of diluted loss attributable to common stockholders per share as the effect would be anti-dilutive. The following table contains all potentially dilutive common stock equivalents. As of September 30, 2015 2014 (in thousands) Options to purchase common shares 3,590 4,669 Common stock warrants — 13 Convertible preferred stock (as converted) — 19,530 RSUs 1,569 1,361

Fair Value of Financial Instrum

Fair Value of Financial Instruments	9 Months Ended
	Sep. 30, 2015
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	3. Fair Value of Financial Instruments The Company measures certain financial assets at fair value. Fair value is determined based upon the exit price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants, as determined by either the principal market or the most advantageous market. Inputs used in the valuation techniques to derive fair values are classified based on a three-level hierarchy, as follows: · Level 1 — Quoted prices in active markets for identical assets or liabilities. · Level 2 — Observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets with insufficient volume or infrequent transactions (less active markets); or model-derived valuations in which all significant inputs are observable or can be derived principally from or corroborated by observable market data for substantially the full term of the assets or liabilities. · Level 3 — Unobservable inputs to the valuation methodology that are significant to the measurement of fair value of assets or liabilities. The following table details the fair value measurements within the fair value hierarchy of the Company’s financial assets and liabilities at September 30, 2015 and December 31, 2014. September 30, 2015 Level 1 Level 2 Level 3 Total (in thousands) Money market funds $ 32,404 $ — $ — $ 32,404 Commercial paper — 8,993 — 8,993 Corporate bonds — 73,195 — 73,195 U.S. government agency obligations — 7,007 — 7,007 Total $ 32,404 $ 89,195 $ — $ 121,599 December 31, 2014 Level 1 Level 2 Level 3 Total (in thousands) Money market funds $ 100,000 $ — $ — $ 100,000 Total $ 100,000 $ — $ — $ 100,000 The Company considers all highly liquid investments purchased with a remaining maturity of three months or less to be cash equivalents. The fair value of the Company’s investments in certain money market funds is their face value and such instruments are classified as Level 1 and are included in cash and cash equivalents on the consolidated balance sheets. Certain holdings classified as commercial paper and corporate bonds above had original maturities to the Company of less than 90 days, and therefore have been included within cash and cash equivalents within the consolidated balance sheets. For certain other financial instruments, including accounts receivable, accounts payable and other current liabilities, the carrying amounts approximate their fair value due to the relatively short maturity of these balances. The following tables summarize the composition of our short- and long-term investments at September 30, 2015. The Company did not have any investments at December 31, 2014. September 30, 2015 Amortized Cost Unrealized Gains Unrealized (Losses) Aggregate Fair Value (in thousands) Commercial paper $ 8,992 $ 1 $ — $ 8,993 Corporate bonds 73,434 — (239 ) 73,195 U.S. government agency obligations 7,006 1 — 7,007 Total $ 89,432 $ 2 $ (239 ) $ 89,195 For all of our securities for which the amortized cost basis was greater than the fair value at September 30, 2015, the Company has concluded that there is no plan to sell the security nor is it more likely than not that the Company would be required to sell the security before its anticipated recovery. In making the determination as to whether the unrealized loss is other-than-temporary, the Company considered the length of time and extent the investment has been in an unrealized loss position, the financial condition and near-term prospects of the issuers, the issuers’ credit rating and the time to maturity. Contractual Maturities The contractual maturities of short-term and long-term investments held at September 30, 2015 are as follows: September 30, 2015 Amortized Cost Basis Aggregate Fair Value ( in thousands) Due within one year $ 45,720 $ 45,697 Due after 1 year through 2 years 43,712 43,498 Total $ 89,432 $ 89,195

Property and Equipment, Net

Property and Equipment, Net	9 Months Ended
	Sep. 30, 2015
Property Plant And Equipment [Abstract]
Property and Equipment, Net	4. Property and Equipment, Net Property and equipment, net consists of the following: September 30, 2015 December 31, 2014 (in thousands) Computer equipment & purchased software $ 1,057 $ 904 Furniture and fixtures 3,561 3,010 Office equipment 1,211 1,118 Leasehold improvements 11,287 10,153 Equipment under capital lease 1,105 562 Total property and equipment 18,221 15,747 Less accumulated depreciation (6,381 ) (4,366 ) Property and equipment, net $ 11,840 $ 11,381 Depreciation expense was $673 thousand for the three months ended September 30, 2015, $2.0 million for the nine months ended September 30, 2015, $702 thousand for the three months ended September 30, 2014, and $1.9 million for the nine months ended September 30, 2014.

Capitalized Software Developmen

Capitalized Software Development Costs	9 Months Ended
	Sep. 30, 2015
Research And Development [Abstract]
Capitalized Software Development Costs	5. Capitalized Software Development Costs Capitalized software development costs consisted of the following: September 30, 2015 December 31, 2014 (in thousands) Gross capitalized software development costs $ 17,370 $ 14,219 Accumulated amortization (12,902 ) (9,786 ) Capitalized software development costs, net $ 4,468 $ 4,433 The following table summarizes software development costs capitalized, stock-based compensation included in capitalized software development costs, and amortization of capitalized software development costs: For the Three Months Ended September 30, For the Nine Months Ended September 30, 2015 2014 2015 2014 (in thousands) (in thousands) Software development costs capitalized $ 1,194 $ 1,641 $ 3,151 $ 4,139 Stock-based compensation included in capitalized software development costs $ 150 $ 83 $ 315 $ 209 Amortization of software development costs $ 1,248 $ 1,062 $ 3,405 $ 2,813

Business Combination, Intangibl

Business Combination, Intangible Assets and Goodwill	9 Months Ended
	Sep. 30, 2015
Goodwill And Intangible Assets Disclosure [Abstract]
Business Combination, Intangible Assets and Goodwill	6. Business Combination, Intangible Assets and Goodwill During the nine months ended September 30, 2015 the Company acquired certain assets and treated this purchase as a business combination. The Company paid cash considerations of $600 thousand for these assets and allocated $107 thousand to acquired technology, $50 thousand to certain other assets, and the remaining $443 thousand to goodwill. Intangible assets as of September 30, 2015 and December 31, 2014 were as follows: September 30, 2015 December 31, 2014 (in thousands) Acquired technology $ 852 $ 745 Acquired intellectual property 80 80 Accumulated amortization (806 ) (736 ) Total $ 126 $ 89 Amortization expense related to intangible assets was $26 thousand for the three months ended September 30, 2015, $70 thousand for the nine months ended September 30, 2015, $13 thousand for the three months ended September 30, 2014 and $125 thousand for the nine months ended September 30, 2014. Amortization expense of acquired technology is included in cost of subscription revenue in the consolidated statements of operations. Amortization expense of acquired intellectual property is included in sales and marketing expense in the consolidated statements of operations. The remaining weighted-average useful life of acquired technology and acquired intellectual property is 16 months and 18 months, respectively. Remaining amortization expense for intangible assets is as follows: Years ended December 31, Amortization Expense (in thousands) 2015 26 2016 84 2017 16 Total 126 The changes in the carrying amount of goodwill for the nine months ended September 30, 2015 were as follows: (in thousands) Balance as of December 31, 2014 $ 9,330 Business combination 443 Balance as of September 30, 2015 $ 9,773

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2015
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	7. Commitments and Contingencies In September 2015, the Company entered into a 5 year property lease. The lease commences on October 1, 2015 and the Company will pay an aggregate of approximately $1.3 million in rent over the 5 year lease period. In April 2015, the Company entered into a new 10 year property lease. The lease commences on January 1, 2016 and the Company will pay an aggregate of approximately $37 million in rent over the 10 year lease period. Future minimum payments under all operating and capital lease agreements as of September 30, 2015, are as follows: Operating Capital (in thousands) 2015 $ 1,475 $ 103 2016 9,518 385 2017 10,039 147 2018 9,901 — 2019 10,103 — Thereafter 28,852 — Total $ 69,888 635 Less: Portion representing interest (22 ) Capital lease obligation $ 613 Additionally, in May 2015, the Company entered into a renewal agreement with a customer relationship management vendor. The Company’s contractual obligation under this agreement is approximately $30 million, payable over the sixty month term of the agreement. Legal Contingencies From time to time, we may become a party to litigation and subject to claims incident to the ordinary course of business, including intellectual property claims, labor and employment claims, and threatened claims, breach of contract claims, tax, and other matters. We currently have no material pending litigation.

Changes in Accumulated Other Co

Changes in Accumulated Other Comprehensive Loss	9 Months Ended
	Sep. 30, 2015
Equity [Abstract]
Changes in Accumulated Other Comprehensive Loss	8. Changes in Accumulated Other Comprehensive Loss The following table summarizes the changes in accumulated other comprehensive loss, which is reported as a component of stockholders’ deficit, for the nine months ended September 30, 2015. Cumulative Translation Adjustment Unrealized loss investments Total (in thousands) Beginning balance at December 31, 2014 $ (145 ) $ — $ (145 ) Other comprehensive loss before reclassifications (162 ) (237 ) (399 ) Amounts reclassified from accumulated other comprehensive income — — — Ending balance at September 30, 2015 $ (307 ) $ (237 ) $ (544 )

Stock-Based Compensation Expens

Stock-Based Compensation Expense	9 Months Ended
	Sep. 30, 2015
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock-Based Compensation Expense	9. Stock-Based Compensation Expense The following two tables show stock-based compensation expense by award type and where the stock-based compensation expense is recorded in the Company’s consolidated statements of operations: Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 (in thousands) (in thousands) Options $ 1,554 $ 1,266 $ 4,825 $ 3,514 RSUs 2,844 — 9,752 — Employee stock purchase plan 112 — 716 — Total stock-based compensation expense $ 4,510 $ 1,266 $ 15,293 $ 3,514 Effect of stock-based compensation expense on income by line item: Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 (in thousands) (in thousands) Cost of revenue, subscription $ 89 $ 24 $ 249 $ 64 Cost of revenue, service 315 84 851 236 Research and development 1,568 140 4,830 435 Sales and marketing 1,078 560 5,278 1,447 General and administrative 1,460 458 4,085 1,332 Total stock-based compensation expense $ 4,510 $ 1,266 $ 15,293 $ 3,514 Excluded from stock-based compensation expense is $150 thousand of capitalized software development costs for the three months ended September 30, 2015, $315 thousand for the nine months ended September 30, 2015, $83 thousand for the three months ended September 30, 2014, and $209 thousand for the nine months ended September 30, 2014.

Segment Information and Geograp

Segment Information and Geographic Data	9 Months Ended
	Sep. 30, 2015
Segment Reporting [Abstract]
Segment Information and Geographic Data	10. Segment Information and Geographic Data The Company operates as one operating segment. Operating segments are defined as components of an enterprise for which separate financial information is regularly evaluated by the chief operating decision makers (“CODMs”), which are the Company’s chief executive officer and chief operating officer, in deciding how to allocate resources and assess performance. The Company’s CODMs evaluate the Company’s financial information and resources and assess the performance of these resources on a consolidated basis. Since the Company operates in one operating segment, all required financial segment information can be found in the consolidated financial statements. Revenue and long-lived assets by geographic region, based on the physical location of the operations recording the sale or the asset, are as follows: Revenues by geographical region: Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 Americas $ 40,308 $ 27,008 $ 110,371 $ 73,349 Europe 6,275 3,420 16,020 8,351 Asia Pacific 1,128 20 2,426 20 Total $ 47,711 $ 30,448 $ 128,817 $ 81,720 Percentage of revenues generated outside of the Americas 16 % 11 % 14 % 10 % Total long lived assets by geographical region: As of September 30, 2015 As of December 31, 2014 Americas $ 10,630 $ 10,711 Europe 600 670 Asia Pacific 610 — Total long lived assets $ 11,840 $ 11,381 Percentage of long lived assets held outside of the Americas 10 % 6 %

Organization and Operations (Po

Organization and Operations (Policies)	9 Months Ended
	Sep. 30, 2015
Accounting Policies [Abstract]
Investments	Investments Investments consist of corporate debt securities. Securities having remaining maturities of more than three months at the date of purchase and less than one year from the date of the balance sheets are classified as short-term, and those with maturities of more than one year from the date of the balance sheet are classified as long-term in the consolidated balance sheets. The Company classifies its debt investments with readily determinable market values as available-for-sale. These investments are classified as investments on the consolidated balance sheets and are carried at fair market value, with unrealized gains and losses considered to be temporary in nature reported as accumulated other comprehensive income (loss), a separate component of stockholders’ equity. The Company reviews all investments for reductions in fair value that are other-than-temporary. When such reductions occur, the cost of the investment is adjusted to fair value through recording a loss on investments in the consolidated statements of operations. Gains and losses on investments are calculated on the basis of specific identification. Investments are considered to be impaired when a decline in fair value below cost basis is determined to be other-than-temporary. The Company periodically evaluates whether a decline in fair value below cost basis is other-than-temporary by considering available evidence regarding these investments including, among other factors: the duration of the period that, and extent to which, the fair value is less than cost basis; the financial health of, and business outlook for the issuer, including industry and sector performance and operational and financing cash flow factors; overall market conditions and trends and the Company’s intent and ability to retain its investment in the security for a period of time sufficient to allow for an anticipated recovery in market value. Once a decline in fair value is determined to be other-than-temporary, a write-down is recorded and a new cost basis in the security is established. Assessing the above factors involves inherent uncertainty. Write-downs, if recorded, could be materially different from the actual market performance of investments in the Company’s portfolio if, among other things, relevant information related to the investment was not publicly available.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In May 2014, the Financial Accounting Standards Board (FASB) issued updated guidance and disclosure requirements for recognizing revenue. The new revenue recognition standard provides a five-step analysis of transactions to determine when and how revenue is recognized. The core principle is that a company 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. In July 2015, the FASB approved the deferral of the new standard's effective date by one year. The new standard now is effective for annual reporting periods beginning January 1, 2018. The FASB will permit companies to adopt the new standard early, but not before the original effective date of January 1, 2017 In June 2014, the FASB issued a standards update on accounting for share-based payments when the terms of the award provide that a performance target could be achieved after a requisite service period. The standard is effective beginning January 1, 2016, with early adoption permitted. We do not expect it to have a material impact on our consolidated financial position, results of operations or cash flows.
Reclassifications	Reclassifications Certain prior year amounts have been reclassified to conform with the current year’s presentation. During the three and nine months ended September 30, 2015, the Company classified $729 thousand and $2.1 million, respectively, of credit card fees associated with customer payments within general and administrative expenses on the consolidated statement of operations. Accordingly, the Company reclassified $500 thousand of credit card fees associated with customer payments for the three months ended September 30, 2014 and $1.4 million for the nine months ended September 30, 2014 from cost of revenues, subscription to general and administrative expenses to confirm with this presentation. The Company will also reclassify credit card fees of $593 thousand for the three months ended December 31, 2014.

Net Loss per Share (Tables)

Net Loss per Share (Tables)	9 Months Ended
	Sep. 30, 2015
Earnings Per Share [Abstract]
Summary of Reconciliation of Basic and Diluted Loss Attributable to Common Stockholders Per Share	A reconciliation of the denominator used in the calculation of basic and diluted loss attributable to common stockholders per share is as follows: For the Three Months Ended September 30, For the Nine Months Ended September 30, 2015 2014 2015 2014 Net loss attributable to common stockholders $ (13,552 ) $ (10,806 ) $ (35,802 ) $ (28,573 ) Weighted-average common shares outstanding — basic 33,819 5,874 32,901 5,715 Dilutive effect of share equivalents resulting from stock options, RSUs, common stock warrants, and redeemable convertible preferred shares (as converted) — — — — Weighted-average common shares, outstanding — diluted 33,819 5,874 32,901 5,715 Net loss attributable to common stockholders per share, basic and diluted $ (0.40 ) $ (1.84 ) $ (1.09 ) $ (5.00 )
Schedule of Potentially Dilutive Common Stock Equivalents	The following table contains all potentially dilutive common stock equivalents. As of September 30, 2015 2014 (in thousands) Options to purchase common shares 3,590 4,669 Common stock warrants — 13 Convertible preferred stock (as converted) — 19,530 RSUs 1,569 1,361

Fair Value of Financial Instr20

Fair Value of Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2015
Fair Value Disclosures [Abstract]
Schedule of Fair Value Measurements of Financial Assets and Liabilities	The following table details the fair value measurements within the fair value hierarchy of the Company’s financial assets and liabilities at September 30, 2015 and December 31, 2014. September 30, 2015 Level 1 Level 2 Level 3 Total (in thousands) Money market funds $ 32,404 $ — $ — $ 32,404 Commercial paper — 8,993 — 8,993 Corporate bonds — 73,195 — 73,195 U.S. government agency obligations — 7,007 — 7,007 Total $ 32,404 $ 89,195 $ — $ 121,599 December 31, 2014 Level 1 Level 2 Level 3 Total (in thousands) Money market funds $ 100,000 $ — $ — $ 100,000 Total $ 100,000 $ — $ — $ 100,000
Summary of Composition of Short and Long Term Investments	The following tables summarize the composition of our short- and long-term investments at September 30, 2015. The Company did not have any investments at December 31, 2014. September 30, 2015 Amortized Cost Unrealized Gains Unrealized (Losses) Aggregate Fair Value (in thousands) Commercial paper $ 8,992 $ 1 $ — $ 8,993 Corporate bonds 73,434 — (239 ) 73,195 U.S. government agency obligations 7,006 1 — 7,007 Total $ 89,432 $ 2 $ (239 ) $ 89,195
Summary of Contractual Maturities of Short and Long Term Investments	The contractual maturities of short-term and long-term investments held at September 30, 2015 are as follows: September 30, 2015 Amortized Cost Basis Aggregate Fair Value ( in thousands) Due within one year $ 45,720 $ 45,697 Due after 1 year through 2 years 43,712 43,498 Total $ 89,432 $ 89,195

Property and Equipment, Net (Ta

Property and Equipment, Net (Tables)	9 Months Ended
	Sep. 30, 2015
Property Plant And Equipment [Abstract]
Schedule of Property and Equipment	Property and equipment, net consists of the following: September 30, 2015 December 31, 2014 (in thousands) Computer equipment & purchased software $ 1,057 $ 904 Furniture and fixtures 3,561 3,010 Office equipment 1,211 1,118 Leasehold improvements 11,287 10,153 Equipment under capital lease 1,105 562 Total property and equipment 18,221 15,747 Less accumulated depreciation (6,381 ) (4,366 ) Property and equipment, net $ 11,840 $ 11,381

Capitalized Software Developm22

Capitalized Software Development Costs (Tables)	9 Months Ended
	Sep. 30, 2015
Research And Development [Abstract]
Summary of Capitalized Software Development Costs	Capitalized software development costs consisted of the following: September 30, 2015 December 31, 2014 (in thousands) Gross capitalized software development costs $ 17,370 $ 14,219 Accumulated amortization (12,902 ) (9,786 ) Capitalized software development costs, net $ 4,468 $ 4,433
Summary of Capitalized Software Development Costs Including Stock-Based Compensation and Amortization	The following table summarizes software development costs capitalized, stock-based compensation included in capitalized software development costs, and amortization of capitalized software development costs: For the Three Months Ended September 30, For the Nine Months Ended September 30, 2015 2014 2015 2014 (in thousands) (in thousands) Software development costs capitalized $ 1,194 $ 1,641 $ 3,151 $ 4,139 Stock-based compensation included in capitalized software development costs $ 150 $ 83 $ 315 $ 209 Amortization of software development costs $ 1,248 $ 1,062 $ 3,405 $ 2,813

Business Combination, Intangi23

Business Combination, Intangible Assets and Goodwill (Tables)	9 Months Ended
	Sep. 30, 2015
Goodwill And Intangible Assets Disclosure [Abstract]
Intangible assets	Intangible assets as of September 30, 2015 and December 31, 2014 were as follows: September 30, 2015 December 31, 2014 (in thousands) Acquired technology $ 852 $ 745 Acquired intellectual property 80 80 Accumulated amortization (806 ) (736 ) Total $ 126 $ 89
Estimated Future Amortization Expense for Intangible Assets	Remaining amortization expense for intangible assets is as follows: Years ended December 31, Amortization Expense (in thousands) 2015 26 2016 84 2017 16 Total 126
Schedule of Changes in Carrying Amount of Goodwill	The changes in the carrying amount of goodwill for the nine months ended September 30, 2015 were as follows: (in thousands) Balance as of December 31, 2014 $ 9,330 Business combination 443 Balance as of September 30, 2015 $ 9,773

Commitments and Contingencies (

Commitments and Contingencies (Tables)	9 Months Ended
	Sep. 30, 2015
Commitments And Contingencies Disclosure [Abstract]
Schedule of Future Minimum Payments	Future minimum payments under all operating and capital lease agreements as of September 30, 2015, are as follows: Operating Capital (in thousands) 2015 $ 1,475 $ 103 2016 9,518 385 2017 10,039 147 2018 9,901 — 2019 10,103 — Thereafter 28,852 — Total $ 69,888 635 Less: Portion representing interest (22 ) Capital lease obligation $ 613

Changes in Accumulated Other 25

Changes in Accumulated Other Comprehensive Loss (Tables)	9 Months Ended
	Sep. 30, 2015
Equity [Abstract]
Changes in Accumulated Other Comprehensive Loss	The following table summarizes the changes in accumulated other comprehensive loss, which is reported as a component of stockholders’ deficit, for the nine months ended September 30, 2015. Cumulative Translation Adjustment Unrealized loss investments Total (in thousands) Beginning balance at December 31, 2014 $ (145 ) $ — $ (145 ) Other comprehensive loss before reclassifications (162 ) (237 ) (399 ) Amounts reclassified from accumulated other comprehensive income — — — Ending balance at September 30, 2015 $ (307 ) $ (237 ) $ (544 )

Stock-Based Compensation Expe26

Stock-Based Compensation Expense (Tables)	9 Months Ended
	Sep. 30, 2015
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock Compensation Expense by Award is Recorded in the Company's Consolidated Statements of Operations	The following two tables show stock-based compensation expense by award type and where the stock-based compensation expense is recorded in the Company’s consolidated statements of operations: Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 (in thousands) (in thousands) Options $ 1,554 $ 1,266 $ 4,825 $ 3,514 RSUs 2,844 — 9,752 — Employee stock purchase plan 112 — 716 — Total stock-based compensation expense $ 4,510 $ 1,266 $ 15,293 $ 3,514
Effect of Stock-Based Compensation on Income by Line Item	Effect of stock-based compensation expense on income by line item: Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 (in thousands) (in thousands) Cost of revenue, subscription $ 89 $ 24 $ 249 $ 64 Cost of revenue, service 315 84 851 236 Research and development 1,568 140 4,830 435 Sales and marketing 1,078 560 5,278 1,447 General and administrative 1,460 458 4,085 1,332 Total stock-based compensation expense $ 4,510 $ 1,266 $ 15,293 $ 3,514

Segment Information and Geogr27

Segment Information and Geographic Data (Tables)	9 Months Ended
	Sep. 30, 2015
Segment Reporting [Abstract]
Revenues by Geographical Region	Revenues by geographical region: Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 Americas $ 40,308 $ 27,008 $ 110,371 $ 73,349 Europe 6,275 3,420 16,020 8,351 Asia Pacific 1,128 20 2,426 20 Total $ 47,711 $ 30,448 $ 128,817 $ 81,720 Percentage of revenues generated outside of the Americas 16 % 11 % 14 % 10 %
Long Lived Assets by Geographical Region	Total long lived assets by geographical region: As of September 30, 2015 As of December 31, 2014 Americas $ 10,630 $ 10,711 Europe 600 670 Asia Pacific 610 — Total long lived assets $ 11,840 $ 11,381 Percentage of long lived assets held outside of the Americas 10 % 6 %

Organization and Operations - A

Organization and Operations - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	Mar. 24, 2015	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Summary Of Organization And Operations [Line Items]
Number of shares issued to public	971,891
Issued price per share of common stock	$ 37
Aggregate proceeds from offering	$ 34,300
Share offering expenses	$ 583
General and Administrative [Member]
Summary Of Organization And Operations [Line Items]
Amount reclassified from cost of revenues to general and administrative expenses		$ 729	$ 593	$ 500	$ 2,100	$ 1,400
Over-Allotment Option [Member]
Summary Of Organization And Operations [Line Items]
Number of shares issued to public	121,891

Net Loss per Share - Summary of

Net Loss per Share - Summary of Reconciliation of Basic and Diluted Loss Attributable to Common Stockholders Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Earnings Per Share Basic And Diluted [Abstract]
Net loss attributable to common stockholders	$ (13,552)	$ (10,806)	$ (35,802)	$ (28,573)
Weighted-average common shares outstanding — basic	33,819	5,874	32,901	5,715
Dilutive effect of share equivalents resulting from stock options, RSUs, common stock warrants, and redeemable convertible preferred shares (as converted)	0	0	0	0
Weighted-average common shares, outstanding — diluted	33,819	5,874	32,901	5,715
Net loss attributable to common stockholders per share, basic and diluted	$ (0.40)	$ (1.84)	$ (1.09)	$ (5)

Net Loss per Share - Schedule o

Net Loss per Share - Schedule of Potentially Dilutive Common Stock Equivalents (Detail) - shares shares in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Options to Purchase Common Shares [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	3,590	4,669
Common Stock Warrant [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	0	13
Convertible Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	0	19,530
RSUs [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	1,569	1,361

Fair Value of Financial Instr31

Fair Value of Financial Instruments - Schedule of Fair Value of Financial Assets and Liabilities (Detail) - USD ($)	Sep. 30, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of short and long term investments	$ 89,195,000	$ 0
Fair value of financial assets	121,599,000	100,000,000
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of financial assets	32,404,000	100,000,000
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of financial assets	89,195,000	0
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of financial assets	0	0
Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of cash and cash equivalents	32,404,000	100,000,000
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of cash and cash equivalents	32,404,000	100,000,000
Money Market Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of cash and cash equivalents	0	0
Money Market Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of cash and cash equivalents	0	$ 0
Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of cash and cash equivalents	8,993,000
Fair value of short and long term investments	8,993,000
Commercial Paper [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of cash and cash equivalents	0
Commercial Paper [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of cash and cash equivalents	8,993,000
Commercial Paper [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of cash and cash equivalents	0
Corporate Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of short and long term investments	73,195,000
Corporate Bonds [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of short and long term investments	0
Corporate Bonds [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of short and long term investments	73,195,000
Corporate Bonds [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of short and long term investments	0
US Government Agency Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of short and long term investments	7,007,000
US Government Agency Obligations [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of short and long term investments	0
US Government Agency Obligations [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of short and long term investments	7,007,000
US Government Agency Obligations [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of short and long term investments	$ 0

Fair Value of Financial Instr32

Fair Value of Financial Instruments - Additional Information (Detail) - USD ($)	Sep. 30, 2015	Dec. 31, 2014
Available For Sale Securities [Abstract]
Short term or long term investment	$ 89,195,000	$ 0

Fair Value of Financial Instr33

Fair Value of Financial Instruments - Summary of Composition of Short and Long Term Investments (Detail) - USD ($)	Sep. 30, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 89,432,000
Unrealized Gains	2,000
Unrealized (Losses)	(239,000)
Aggregate Fair Value	89,195,000	$ 0
Commercial Paper [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	8,992,000
Unrealized Gains	1,000
Unrealized (Losses)	0
Aggregate Fair Value	8,993,000
Corporate Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	73,434,000
Unrealized Gains	0
Unrealized (Losses)	(239,000)
Aggregate Fair Value	73,195,000
US Government Agency Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	7,006,000
Unrealized Gains	1,000
Unrealized (Losses)	0
Aggregate Fair Value	$ 7,007,000

Fair Value of Financial Instr34

Fair Value of Financial Instruments - Summary of Contractual Maturities of Short and Long Term Investments (Detail) - USD ($)	Sep. 30, 2015	Dec. 31, 2014
Fair Value Disclosures [Abstract]
Amortized Cost Basis, Due within one year	$ 45,720,000
Amortized Cost Basis, Due after 1 year through 2 years	43,712,000
Amortized Cost	89,432,000
Aggregate Fair Value, Due within one year	45,697,000
Aggregate Fair Value, Due after 1 year through 2 years	43,498,000
Aggregate Fair Value, Total	$ 89,195,000	$ 0

Property and Equipment, Net - S

Property and Equipment, Net - Schedule of Property and Equipment (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 18,221	$ 15,747
Less accumulated depreciation	(6,381)	(4,366)
Property and equipment, net	11,840	11,381
Computer Equipment & Purchased Software [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	1,057	904
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	3,561	3,010
Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	1,211	1,118
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	11,287	10,153
Equipment under Capital Lease [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 1,105	$ 562

Property and Equipment, Net - A

Property and Equipment, Net - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Property Plant And Equipment [Abstract]
Depreciation expense	$ 673	$ 702	$ 2,000	$ 1,900

Capitalized Software Developm37

Capitalized Software Development Costs - Summary of Capitalized Software Development Costs (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Capitalized Computer Software Net [Abstract]
Gross capitalized software development costs	$ 17,370	$ 14,219
Accumulated amortization	(12,902)	(9,786)
Capitalized software development costs, net	$ 4,468	$ 4,433

Capitalized Software Developm38

Capitalized Software Development Costs - Summary of Capitalized Software Development Costs Including Stock-Based Compensation and Amortization (Detail) - Software Development [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Capitalized Computer Software [Line Items]
Software development costs capitalized	$ 1,194	$ 1,641	$ 3,151	$ 4,139
Stock-based compensation included in capitalized software development costs	150	83	315	209
Amortization of software development costs	$ 1,248	$ 1,062	$ 3,405	$ 2,813

Business Combination, Intangi39

Business Combination, Intangible Assets and Goodwill - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Business Acquisition [Line Items]
Cash consideration on acquisition			$ 600	$ 0
Goodwill			443
Amortization expense	$ 26	$ 13	70	$ 125
Business Combination [Member]
Business Acquisition [Line Items]
Business combination other assets			50
Acquired Technology [Member]
Business Acquisition [Line Items]
Business combination acquired technologies			$ 107
Weighted average useful life			16 months
Acquired Intellectual Property [Member]
Business Acquisition [Line Items]
Weighted average useful life			18 months

Business Combination, Intangi40

Business Combination, Intangible Assets and Goodwill - Intangible Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization	$ (806)	$ (736)
Intangible assets, net	126	89
Acquired Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets	852	745
Acquired Intellectual Property [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets	$ 80	$ 80

Business Combination, Intangi41

Business Combination, Intangible Assets and Goodwill - Estimated Future Amortization Expense for Intangible Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Goodwill And Intangible Assets Disclosure [Abstract]
2,015	$ 26
2,016	84
2,017	16
Intangible assets, net	$ 126	$ 89

Business Combination, Intangi42

Business Combination, Intangible Assets and Goodwill - Schedule of Changes in Carrying Amount of Goodwill (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2015USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]
Beginning balance	$ 9,330
Business combination	443
Ending balance	$ 9,773

Commitments and Contingencies-

Commitments and Contingencies- Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended
	Sep. 30, 2015	May. 31, 2015	Apr. 30, 2015	May. 30, 2015
Operating Leased Assets [Line Items]
Rent payable	$ 69,888			$ 30,000
Renewal term		60 months
Lease Agreements Two
Operating Leased Assets [Line Items]
Lease agreement period	5 years
Lease commence date	Oct. 1, 2015
Rent payable	$ 1,300
Lease Agreements One
Operating Leased Assets [Line Items]
Lease agreement period			10 years
Lease commence date			Jan. 1, 2016
Rent payable			$ 37,000

Commitments and Contingencies -

Commitments and Contingencies - Schedule of Future Minimum Payments (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	May. 30, 2015
Commitments And Contingencies Disclosure [Abstract]
Capital Leases, 2015	$ 103
Capital Leases, 2016	385
Capital Leases, 2017	147
Capital Leases, 2018	0
Capital Leases, 2019	0
Capital Leases, Thereafter	0
Capital Leases, Total	635
Less: Portion representing interest	(22)
Capital lease obligation	613
Operating, 2015	1,475
Operating, 2016	9,518
Operating, 2017	10,039
Operating, 2018	9,901
Operating, 2019	10,103
Operating, Thereafter	28,852
Operating, Total	$ 69,888	$ 30,000

Changes in Accumulated Other 45

Changes in Accumulated Other Comprehensive Loss - Changes in Accumulated Other Comprehensive Loss (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2015USD ($)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance at December 31, 2014	$ 110,699
Ending balance at September 30, 2015	124,174
Cumulative Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance at December 31, 2014	(145)
Other comprehensive loss before reclassifications	(162)
Amounts reclassified from accumulated other comprehensive income	0
Ending balance at September 30, 2015	(307)
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance at December 31, 2014	0
Other comprehensive loss before reclassifications	(237)
Amounts reclassified from accumulated other comprehensive income	0
Ending balance at September 30, 2015	(237)
Total
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance at December 31, 2014	(145)
Other comprehensive loss before reclassifications	(399)
Amounts reclassified from accumulated other comprehensive income	0
Ending balance at September 30, 2015	$ (544)

Stock-Based Compensation Expe46

Stock-Based Compensation Expense - Stock Compensation Expense by Award is Recorded in the Company's Consolidated Statements of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock based compensation expense	$ 4,510	$ 1,266	$ 15,293	$ 3,514
Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock based compensation expense	1,554	1,266	4,825	3,514
RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock based compensation expense	2,844	0	9,752	0
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock based compensation expense	$ 112	$ 0	$ 716	$ 0

Stock-Based Compensation Expe47

Stock-Based Compensation Expense - Effect of Stock-Based Compensation on Income by Line Item (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock based compensation expense	$ 4,510	$ 1,266	$ 15,293	$ 3,514
Cost of Revenue, Subscription [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock based compensation expense	89	24	249	64
Cost of Revenue, Service [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock based compensation expense	315	84	851	236
Research and Development [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock based compensation expense	1,568	140	4,830	435
Sales and Marketing [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock based compensation expense	1,078	560	5,278	1,447
General and Administrative [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock based compensation expense	$ 1,460	$ 458	$ 4,085	$ 1,332

Stock-Based Compensation Expe48

Stock-Based Compensation Expense - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Software Development [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Capitalized software development costs excluded from stock based compensation	$ 150	$ 83	$ 315	$ 209

Segment Information and Geogr49

Segment Information and Geographic Data - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2015Segment
Segment Reporting [Abstract]
Number of operating segment	1

Segment Information and Geogr50

Segment Information and Geographic Data - Revenues by Geographical Region (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Segment Reporting Information [Line Items]
Total Revenues	$ 47,711	$ 30,448	$ 128,817	$ 81,720
Americas [Member]
Segment Reporting Information [Line Items]
Total Revenues	40,308	27,008	110,371	73,349
Europe [Member]
Segment Reporting Information [Line Items]
Total Revenues	6,275	3,420	16,020	8,351
Asia Pacific [Member]
Segment Reporting Information [Line Items]
Total Revenues	$ 1,128	$ 20	$ 2,426	$ 20
Revenue [Member] | Outside Of Americas [Member] | Geographic Concentration Risk [Member]
Segment Reporting Information [Line Items]
Percentage of revenues generated outside of the Americas	16.00%	11.00%	14.00%	10.00%

Segment Information and Geogr51

Segment Information and Geographic Data - Long Lived Assets by Geographical Region (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Total long lived assets	$ 11,840	$ 11,381
Americas [Member]
Segment Reporting Information [Line Items]
Total long lived assets	10,630	10,711
Europe [Member]
Segment Reporting Information [Line Items]
Total long lived assets	600	670
Asia Pacific [Member]
Segment Reporting Information [Line Items]
Total long lived assets	$ 610	$ 0
Outside Of Americas [Member] | Assets Total [Member] | Geographic Concentration Risk [Member]
Segment Reporting Information [Line Items]
Percentage of long lived assets held outside of the Americas	10.00%	6.00%