Brightcove (BCOV) 10-Q 26 Jul 18 2018 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Jul. 23, 2018
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Trading Symbol	BCOV
Entity Registrant Name	BRIGHTCOVE INC.
Entity Central Index Key	1,313,275
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		35,917,891

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 27,453	$ 26,132	$ 28,351	$ 36,813
Accounts receivable, net of allowance of $121 and $146 at June 30, 2018 and December 31, 2017, respectively	25,908	25,236
Prepaid expenses	5,639	3,991
Other current assets	7,359	3,045
Total current assets	66,359	58,404
Property and equipment, net	9,927	9,143
Intangible assets, net	6,888	8,236
Goodwill	50,776	50,776
Deferred tax asset	91	87
Other assets	2,211	969
Total assets	136,252	127,615
Current liabilities:
Accounts payable	7,309	6,142
Accrued expenses	13,744	13,621
Capital lease liability	35	228
Equipment financing		26
Deferred revenue	41,886	39,370
Total current liabilities	62,974	59,387
Deferred revenue, net of current portion	137	244
Other liabilities	1,044	1,228
Total liabilities	64,155	60,859
Commitments and contingencies (Note 10)
Stockholders' equity:
Undesignated preferred stock, $0.001 par value; 5,000,000 shares authorized; no shares issued
Common stock, $0.001 par value; 100,000,000 shares authorized; 36,052,891 and 34,933,408 shares issued at June 30, 2018 and December 31, 2017, respectively	36	35
Additional paid-in capital	246,417	238,700
Treasury stock, at cost; 135,000 shares	(871)	(871)
Accumulated other comprehensive loss	(882)	(809)
Accumulated deficit	(172,603)	(170,299)
Total stockholders' equity	72,097	66,756
Total liabilities and stockholders' equity	$ 136,252	$ 127,615

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Allowance for accounts receivable	$ 121	$ 146
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	36,052,891	34,933,408
Treasury stock, shares	135,000	135,000

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenue:
Revenue	$ 41,654	$ 38,753	$ 82,848	$ 76,325
Cost of revenue:
Cost of revenue	16,618	16,578	33,829	31,796
Gross profit	25,036	22,175	49,019	44,529
Operating expenses:
Research and development	7,743	8,279	15,518	16,473
Sales and marketing	15,265	15,904	28,499	29,805
General and administrative	7,045	5,876	12,435	11,267
Total operating expenses	30,053	30,059	56,452	57,545
Loss from operations	(5,017)	(7,884)	(7,433)	(13,016)
Other (expense) income, net	(481)	314	(210)	452
Loss before income taxes	(5,498)	(7,570)	(7,643)	(12,564)
Provision for income taxes	154	108	266	187
Net loss	$ (5,652)	$ (7,678)	$ (7,909)	$ (12,751)
Net loss per share - basic and diluted	$ (0.16)	$ (0.22)	$ (0.22)	$ (0.37)
Weighted-average number of common shares used in computing net loss per share	35,543,307	34,247,058	35,234,974	34,152,109
Subscription and Support Revenue [Member]
Revenue:
Revenue	$ 37,867	$ 35,528	$ 75,734	$ 69,770
Cost of revenue:
Cost of revenue	13,125	13,102	26,581	25,256
Professional Services and Other Revenue [Member]
Revenue:
Revenue	3,787	3,225	7,114	6,555
Cost of revenue:
Cost of revenue	3,493	3,476	7,248	6,540
Cost of Subscription and Support Revenue [Member]
Stock-based compensation included in above line items:
Stock-based compensation	119	89	233	191
Amortization of acquired intangible assets included in above line items:
Amortization of acquired intangible assets	507	508	1,015	1,015
Cost of Professional Services and Other Revenue [Member]
Stock-based compensation included in above line items:
Stock-based compensation	46	59	86	119
Research and Development [Member]
Stock-based compensation included in above line items:
Stock-based compensation	303	341	649	748
Amortization of acquired intangible assets included in above line items:
Amortization of acquired intangible assets				11
Sales and Marketing [Member]
Stock-based compensation included in above line items:
Stock-based compensation	783	517	1,448	1,263
Amortization of acquired intangible assets included in above line items:
Amortization of acquired intangible assets	167	166	333	359
General and Administrative [Member]
Stock-based compensation included in above line items:
Stock-based compensation	$ 581	$ 680	$ 1,084	$ 1,155

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement of Comprehensive Income [Abstract]
Net loss	$ (5,652)	$ (7,678)	$ (7,909)	$ (12,751)
Other comprehensive income:
Foreign currency translation adjustments	(320)	77	(73)	257
Comprehensive loss	$ (5,972)	$ (7,601)	$ (7,982)	$ (12,494)

Condensed Consolidated Stateme6

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Operating activities
Net loss	$ (7,909)	$ (12,751)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	3,434	3,665
Stock-based compensation	3,500	3,476
Provision for reserves on accounts receivable	23	96
Changes in assets and liabilities:
Accounts receivable	296	(1,606)
Prepaid expenses and other current assets	(488)	(2,421)
Other assets	(276)	92
Accounts payable	924	3,959
Accrued expenses	(62)	(2,457)
Deferred revenue	812	1,233
Net cash provided by (used in) operating activities	254	(6,714)
Investing activities
Purchases of property and equipment	(958)	(650)
Capitalized internal-use software costs	(1,813)	(1,149)
Net cash used in investing activities	(2,771)	(1,799)
Financing activities
Proceeds from exercise of stock options	4,221	277
Payments of withholding tax on RSU vesting	(113)	(118)
Payments on equipment financing	(26)	(152)
Payments under capital lease obligation	(193)	(278)
Net cash provided by (used in) financing activities	3,889	(271)
Effect of exchange rate changes on cash and cash equivalents	(51)	322
Net increase (decrease) in cash and cash equivalents	1,321	(8,462)
Cash and cash equivalents at beginning of period	26,132	36,813
Cash and cash equivalents at end of period	$ 27,453	$ 28,351

Business Description and Basis

Business Description and Basis of Presentation	6 Months Ended
	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Business Description and Basis of Presentation	1. Business Description and Basis of Presentation Business Description Brightcove Inc. (the Company) is a global provider of cloud services for video which enable its customers to publish and distribute video to Internet-connected devices quickly, easily and in a cost-effective and high-quality manner. The Company is headquartered in Boston, Massachusetts and was incorporated in the state of Delaware on August 24, 2004. At June 30, 2018, the Company had nine wholly-owned subsidiaries: Brightcove UK Ltd, Brightcove Singapore Pte. Ltd., Brightcove Korea, Brightcove Australia Pty Ltd, Brightcove Holdings, Inc., Brightcove Kabushiki Kaisha (Brightcove KK), Zencoder Inc. (Zencoder), Brightcove FZ-LLC, Basis of Presentation The accompanying interim condensed consolidated financial statements are unaudited. These condensed consolidated financial statements and notes should be read in conjunction with the audited consolidated financial statements and related notes, together with Management’s Discussion and Analysis of Financial Condition and Results of Operations, contained in the Company’s Annual Report on Form 10-K The accompanying unaudited condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission. Accordingly, certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles in the United States have been condensed or omitted pursuant to such rules and regulations. In the opinion of management, other than the changes resulting from adopting new revenue recognition guidance which also impacted the accounting for the costs to obtain a contract as described in Note 2, the unaudited condensed consolidated financial statements and notes have been prepared on the same basis as the audited consolidated financial statements for the year ended December 31, 2017 contained in the Company’s Annual Report on Form 10-K The Company considers events or transactions that occur after the balance sheet date but prior to the issuance of the financial statements to provide additional evidence for certain estimates or to identify matters that require additional disclosure. Subsequent events have been evaluated as required. The Company has evaluated all subsequent events and determined that there are no material recognized or unrecognized subsequent events requiring disclosure, other than those disclosed in this Report on Form 10-Q. The accompanying condensed consolidated financial statements reflect the application of certain significant accounting policies as described below and elsewhere in these notes to the condensed consolidated financial statements. As of June 30, 2018, other than the changes to revenue recognition as described in Note 2, the Company’s significant accounting policies and estimates, which are detailed in the Company’s Annual Report on Form 10-K

Revenue from Contracts with Cus

Revenue from Contracts with Customers	6 Months Ended
	Jun. 30, 2018
Revenue from Contract with Customer [Abstract]
Revenue from Contracts with Customers	2. Revenue from Contracts with Customers The Company primarily derives revenue from the sale of its online video platform, which enables its customers to publish and distribute video to Internet-connected devices quickly, easily and in a cost-effective and high-quality manner. Revenue is derived from three primary sources: (1) the subscription to its technology and related support; (2) hosting, bandwidth and encoding services; and (3) professional services, which include initiation, set-up and In May 2014, the Financial Accounting Standards Board (FASB) issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) Revenue from Contracts with Customers catch-up adjustment Revenue Recognition a cumulative catch-up adjustment 1) Identify the contract with a customer 2) Identify the performance obligations in the contract 3) Determine the transaction price 4) Allocate the transaction price to performance obligations in the contract 5) Recognize revenue when or as the Company satisfies a performance obligation The Company satisfies performance obligations as discussed in further detail below. Revenue is recognized at the time the related performance obligation is satisfied by transferring a promised service to a customer. Disaggregation of Revenue The Company classifies its customers by including them in either premium or volume offerings. For premium offerings, the Company organizes its go-to-market approach The following table summarizes revenue from contracts with customers by business unit for the three and six months ended June 30, 2018. Three Months Ended Six Months Ended Revenue by Business Unit Media $ 22,402 $ 45,374 Digital Marketing / Enterprise 18,081 35,061 Volume 1,171 2,413 Total 41,654 82,848 Subscription and Support The Company’s subscription arrangements provide customers the right to access its hosted software applications. Customers do not have the right to take possession of the Company’s software during the hosting arrangement. Contracts for premium customers generally have a term of one year and are non-cancellable. These Under ASC 605, if usage exceeded the annual allowance level for a particular customer arrangement, the associated revenue was recognized in the period that the additional usage occurred. Under ASC 606, when the transaction price includes a variable amount of consideration, an entity is required to estimate the consideration that is expected to be received for a particular customer arrangement. The Company evaluates variable consideration for usage-based fees at contract inception and re-evaluates quarterly Contracts with customers that are month-to-month arrangements pay-as-you-go pay-as-you-go Professional Services and Other Revenue Professional services and other revenue consist of services such as implementation, software customizations and project management for customers who subscribe to our premium editions. These arrangements are priced either on a fixed fee basis with a portion due upon contract signing and the remainder due when the related services have been completed, or on a time and materials basis. Professional services and other revenue sold on a stand-alone basis are recognized as the services are performed, subject to any refund or other obligation. Contracts with Multiple Performance Obligations The Company periodically enters into multiple-element service arrangements that include platform subscription fees, support fees, and, in certain cases, other professional services. These contracts include multiple promises that the Company evaluates to determine if the promises are separate performance obligations. Performance obligations are identified based on services to be transferred to a customer that are both capable of being distinct and are distinct within the context of the contract. Once the Company determines the performance obligations, the Company determines the transaction price, which includes estimating the amount of variable consideration to be included in the transaction price, if any. The Company then allocates the transaction price to each performance obligation in the contract based on a relative stand-alone selling price method. The transaction price post allocation is recognized as revenue as the related performance obligation is satisfied. Costs to Obtain a Contract Commissions are paid to internal sales representatives as compensation for obtaining contracts. Under the new guidance, the Company capitalizes commissions that are incremental, as a result of costs incurred to obtain a customer contract, if those costs are not within the scope of another topic within the accounting literature and meet the specified criteria. Assets recognized for costs to obtain a contract are amortized over the period of performance for the underlying customer contracts. The commission expense on contracts with new customers was previously recorded over the respective contract term. Under the new guidance, the commission expense on contracts with new customers will be recorded over the average life of a customer given the commission amount associated with sales to new customers is not commensurate with the commission amount associated with the contract renewal for those same customers. The commission amount associated with the renewal of a contract in addition to any commission amount related to incremental sales was previously recorded as expense in the quarter the commission was earned; however, under ASC 606 these commission amounts are recorded as expense over the term of the renewed contract. These assets are periodically assessed for impairment. Financial Statement Impact of Adoption ASC 606 The cumulative effect of applying the new guidance to all contracts with customers that were not completed as of January 1, 2018 was recorded as an adjustment to accumulated deficit as of the adoption date. As a result of applying the modified retrospective method to adopt the new revenue guidance, the following adjustments were made on the condensed consolidated balance sheet as of January 1, 2018. As Reported Adjustments Adjusted December 31, Subscription Costs to January 1, Assets Current assets: Cash and cash equivalents $ 26,132 $ 26,132 Accounts receivable, net 25,236 926 26,162 Prepaid expenses 3,991 3,991 Other current assets 3,045 1,861 3,384 8,290 Total current assets 58,404 2,787 3,384 64,575 Property and equipment, net 9,143 9,143 Intangible assets, net 8,236 8,236 Goodwill 50,776 50,776 Deferred tax asset 87 87 Other assets 969 978 1,947 Total assets $ 127,615 $ 2,787 $ 4,362 $ 134,764 Liabilities and stockholders’ equity Current liabilities: Accounts payable $ 6,142 $ 6,142 Accrued expenses 13,621 13,621 Capital lease liability 228 228 Equipment financing 26 26 Deferred revenue 39,370 1,429 40,799 Total current liabilities 59,387 1,429 — 60,816 Deferred revenue, net of current portion 244 115 359 Other liabilities 1,228 1,228 Total liabilities 60,859 1,544 — 62,403 Commitments and contingencies Stockholders’ equity: Undesignated preferred stock — — Common stock 35 35 Additional paid-in 238,700 238,700 Treasury stock (871 ) (871 ) Accumulated other comprehensive loss (809 ) (809 ) Accumulated deficit (170,299 ) 1,243 4,362 (164,694 ) Total stockholders’ equity 66,756 1,243 4,362 72,361 Total liabilities and stockholders’ equity $ 127,615 $ 2,787 $ 4,362 $ 134,764 Subscription and Support Under ASC 606, the Company estimates the variable consideration to be received and recognizes those amounts, subject to constraint, as the Company satisfies its performance obligation. In conjunction with the January 1, 2018 adoption of ASC 606, the Company reduced accumulated deficit by $1,243 reflecting the recognition of revenue primarily relating to variable consideration, for contracts that still require performance by the entity at the date of adoption. Costs to Obtain a Contract Under the new guidance, the commission expense on contracts with new customers will be recorded over the average life of a customer given the commission amount associated with sales to new customers is not commensurate with the commission amount associated with the contract renewal for those same customers. The commission amount associated with the renewal of a contract in addition to any related incremental sale is recorded as expense over the term of the renewed contract. The net impact of these changes resulted in a $4,362 reduction to accumulated deficit for contracts that still require performance by the Company at the date of adoption. Income Taxes The adoption of ASC 606 primarily resulted in an acceleration of revenue and the reduction of expense as of December 31, 2017, which in turn generated additional deferred tax liabilities that ultimately reduced the Company’s net deferred tax asset position. As the Company fully reserves its net deferred tax assets in the jurisdictions impacted by the adoption of ASC 606, this impact was offset by a corresponding reduction to the valuation allowance. Impact of New Revenue Guidance on Financial Statement Line Items The following tables compare the reported condensed consolidated balance sheet, statement of operations and cash flows, as of and for the three and six months ended June 30, 2018, to the pro-forma As of June 30, 2018 Balance Sheet As reported Pro forma as if the Assets Current assets: Cash and cash equivalents $ 27,453 27,453 Accounts receivable, net 25,908 25,184 Prepaid expenses 5,639 5,639 Other current assets 7,359 2,315 Total current assets 66,359 60,591 Property and equipment, net 9,927 9,927 Intangible assets, net 6,888 6,888 Goodwill 50,776 50,776 Deferred tax asset 91 91 Other assets 2,211 941 Total assets $ 136,252 $ 129,214 Liabilities and stockholders’ equity Current liabilities: Accounts payable $ 7,309 $ 7,309 Accrued expenses 13,744 13,744 Capital lease liability 35 35 Deferred revenue 41,886 40,893 Total current liabilities 62,974 61,981 Deferred revenue, net of current portion 137 117 Other liabilities 1,044 1,044 Total liabilities 64,155 63,142 Commitments and contingencies Stockholders’ equity: Undesignated preferred stock — — Common stock 36 36 Additional paid-in 246,417 246,417 Treasury stock (871 ) (871 ) Accumulated other comprehensive loss (882 ) (882 ) Accumulated deficit (172,603 ) (178,628 ) Total stockholders’ equity 72,097 66,072 Total liabilities and stockholders’ equity $ 136,252 $ 129,214 Total reported assets were $7,038 greater than the pro-forma Total reported liabilities were $1,013 greater than the pro-forma The following summarizes the significant changes on the Company’s condensed consolidated statement of operations for the three months and six months ended June 30, 2018 as a result of the adoption of ASC 606 on January 1, 2018 compared to if the Company had continued to recognize revenues under ASC 605. Three Months Ended June 30, 2018 Six Months Ended June 30, 2018 Statement of Operations As reported Pro forma as if As reported Pro forma as if Revenue: Subscription and support revenue $ 37,867 $ 37,809 $ 75,734 $ 75,722 Professional services and other revenue 3,787 3,787 7,114 7,114 Total revenue 41,654 41,596 82,848 82,836 Cost of revenue: Cost of subscription and support revenue 13,125 13,125 26,581 26,581 Cost of professional services and other revenue 3,493 3,493 7,248 7,248 Total cost of revenue 16,618 16,618 33,829 33,829 Gross profit 25,036 24,978 49,019 49,007 Operating expenses: Research and development 7,743 7,743 15,518 15,518 Sales and marketing 15,265 15,394 28,499 28,907 General and administrative 7,045 7,045 12,435 12,435 Total operating expenses 30,053 30,182 56,452 56,860 Loss from operations (5,017 ) (5,204 ) (7,433 ) (7,853 ) Other income (expense), net (481 ) (481 ) (210 ) (210 ) Loss before income taxes (5,498 ) (5,685 ) (7,643 ) (8,063 ) Provision for income taxes 154 154 266 266 Net loss $ (5,652 ) $ (5,839 ) $ (7,909 ) $ (8,329 ) Net loss per share—basic and diluted $ (0.16 ) $ (0.16 ) $ (0.22 ) $ (0.24 ) Weighted-average number of common shares used in computing net loss per share 35,543,307 35,543,307 35,234,974 35,234,974 The primary difference in subscription and support revenue relates to the impacts of applying the variable consideration guidance under ASC 606. Under the previous guidance, subscription and support revenue would have been approximately $58 and $12 lower, respectively, for the three and six months ended June 30, 2018 as revenue for usage based fees, for contracts with annual entitlement allowances, was recognized in the month of such usage. Under ASC 606, usage based fees, for contracts with annual entitlement allowances, are recognized as revenue over the term of the underlying arrangement. Sales and marketing expense, under the previous guidance, would have increased by approximately $129 and $408, respectively, for the three and six months ended June 30, 2018, due to a portion of the commission payments being recorded immediately to expense at the time a liability was recorded. In addition, certain commission amounts that were amortized to expense over the underlying term of the arrangement are now amortized over the average customer life under ASC 606. The net impact of accounting for revenue under the new guidance had no impact on net loss per share for the three months ended June 30, 2018 and increased net loss per share by $0.02 per basic and diluted share the six months ended June 30, 2018. Six Months Ended June 30, 2018 Statement of Cash Flows As reported Pro forma as if the Operating activities Net loss $ (7,909 ) $ (8,329 ) Adjustments to reconcile net loss to net cash provided by operating activities: Depreciation and amortization 3,434 3,434 Stock-based compensation 3,500 3,500 Provision for reserves on accounts receivable 23 23 Changes in assets and liabilities: Accounts receivable 296 94 Prepaid expenses and other current assets (488 ) (688 ) Other assets (276 ) 16 Accounts payable 924 924 Accrued expenses (62 ) (62 ) Deferred revenue 812 1,342 Net cash provided by operating activities $ 254 $ 254 The adoption of ASC 606 had no impact on the Company’s cash flows from operations. The aforementioned impacts resulted in offsetting shifts in cash flows between net loss and various working capital balances. The following summarizes the opening and closing balances of receivables, contract assets and contract liabilities from contracts with customers. Accounts Contract Assets Deferred Deferred (non-current) Total Deferred Balance at January 1, 2018 $ 26,162 $ 3,124 $ 40,799 $ 359 $ 41,158 Balance at June 30, 2018 25,908 1,881 41,886 137 42,023 Revenue recognized during the six months ended June 30, 2018 from amounts included in deferred revenue at the beginning of the period was approximately $31.5 million. During the six months ended June 30, 2018, the Company did not recognize revenue from performance obligations satisfied or partially satisfied in previous periods. The assets recognized for costs to obtain a contract were $5.8 million and $5.4 million as of June 30, 2018 and January 1, 2018, respectively. Amortization expense recognized during the three and six months ended June 30, 2018 related to costs to obtain a contract was $2.0 million and $3.8 million, respectively. Transaction Price Allocated to Future Performance Obligations ASC 606 requires that the Company disclose the aggregate amount of transaction price that is allocated to performance obligations that have not yet been satisfied as June 30, 2018. ASC 606 provides certain practical expedients that limit the requirement to disclose the aggregate amount of transaction price allocated to unsatisfied performance obligations. Subscription and Support Revenue As of June 30, 2018, the total aggregate transaction price allocated to the unsatisfied performance obligations for subscription and support contracts was approximately $109.4 million, of which approximately $86.3 million is expected to be recognized over the next 12 months. The Company expects to recognize substantially all of the remaining unsatisfied performance obligations by the end of 2020. The Company applied the practical expedient to not disclose the amount of transaction price allocated to unsatisfied performance obligations for variable consideration that the Company is able to allocate to one or more of the performance obligations in its contracts. Professional Services The Company applied the practical expedient to not disclose the amount of transaction price allocated to unsatisfied performance obligations when the performance obligation is part of a contract that has an original expected duration of one year or less. The Company does not have material future obligations associated with professional services that extend beyond one year.

Concentration of Credit Risk

Concentration of Credit Risk	6 Months Ended
	Jun. 30, 2018
Risks and Uncertainties [Abstract]
Concentration of Credit Risk	3. Concentration of Credit Risk The Company has no significant off-balance sheet At June 30, 2018 and December 31, 2017, no individual customer accounted for 10% or more of accounts receivable, net. For the three and six months ended June 30, 2018 and 2017, no individual customer accounted for 10% or more of total revenue.

Concentration of Other Risks

Concentration of Other Risks	6 Months Ended
	Jun. 30, 2018
Text Block [Abstract]
Concentration of Other Risks	4. Concentration of Other Risks The Company is dependent on certain content delivery network providers who provide digital media delivery functionality enabling the Company’s on-demand application ultimate end-users. The

Cash and Cash Equivalents

Cash and Cash Equivalents	6 Months Ended
	Jun. 30, 2018
Cash and Cash Equivalents [Abstract]
Cash and Cash Equivalents	5. Cash and Cash Equivalents The Company considers all highly liquid investments with an original maturity of three months or less at the date of purchase to be cash equivalents. Management determines the appropriate classification of investments at the time of purchase, and re-evaluates Cash and cash equivalents primarily consist of cash on deposit with banks and amounts held in interest-bearing money market accounts. Cash equivalents are carried at cost, which approximates their fair market value. Cash and cash equivalents as of June 30, 2018 consist of the following: June 30, 2018 Description Contracted Maturity Amortized Cost Fair Market Value Balance Per Balance Sheet Cash Demand $ 19,235 $ 19,235 $ 19,235 Money market funds Demand 8,218 8,218 8,218 Total cash and cash equivalents $ 27,453 $ 27,453 $ 27,453 Cash and cash equivalents as of December 31, 2017 consist of the following: December 31, 2017 Description Contracted Maturity Amortized Cost Fair Market Value Balance Per Balance Sheet Cash Demand $ 17,972 $ 17,972 $ 17,972 Money market funds Demand 8,160 8,160 8,160 Total cash and cash equivalents $ 26,132 $ 26,132 $ 26,132

Net Loss per Share

Net Loss per Share	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Net Loss per Share	6. Net Loss per Share The following potentially dilutive common stock equivalent shares have been excluded from the computation of weighted-average shares outstanding as their effect would have been anti-dilutive (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 Options outstanding 3,656 4,117 3,710 4,147 Restricted stock units outstanding 2,458 1,857 2,330 1,860

Fair Value of Financial Instrum

Fair Value of Financial Instruments	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	7. Fair Value of Financial Instruments The following tables set forth the Company’s financial instruments carried at fair value using the lowest level of input as of June 30, 2018 and December 31, 2017: June 30, 2018 Quoted Prices in Active Markets for Identical Items (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Assets: Money market funds $ 8,218 $ — $ — $ 8,218 Total assets $ 8,218 $ — $ — $ 8,218 December 31, 2017 Quoted Prices in Active Markets for Identical Items (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Assets: Money market funds $ 8,160 $ — $ — $ 8,160 Total assets $ 8,160 $ — $ — $ 8,160

Stock-based Compensation

Stock-based Compensation	6 Months Ended
	Jun. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-based Compensation	8. Stock-based Compensation The fair value of stock options granted was estimated at the date of grant using the following weighted-average assumptions: Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 Expected life in years 6.1 5.6 6.1 6.0 Risk-free interest rate 2.88 % 1.80 % 2.87 % 2.04 % Volatility 43 % 42 % 43 % 43 % Dividend yield — — — — Weighted-average fair value of stock options granted $ 4.27 $ 2.45 $ 4.22 $ 3.13 The Company recorded stock-based compensation expense of $1,832 and $1,686 for the three months ended June 30, 2018 and 2017, respectively, and $3,500 and $3,476 for the six months ended June 30, 2018 and 2017, respectively. As of June 30, 2018, there was $18,308 of unrecognized stock-based compensation expense related to stock-based awards that is expected to be recognized over a weighted-average period of 2.60 years. Effective April 11, 2018, the Company adopted the 2018 Inducement Plan (“2018 Plan”). The 2018 Plan provides for the issuance of stock options and restricted stock units to the Company’s Chief Executive Officer (“CEO”). In connection with the approval of the 2018 Plan, the Company granted 440,000 stock options and 400,000 restricted stock units to the CEO. During the quarter ended June 30, 2018, the Company granted 445,000 restricted stock units to certain key executives, including the 400,000 restricted stock units to the CEO under the 2018 Plan. These restricted stock units contain both performance-based and service-based vesting conditions. The Company measures compensation expense for these performance-based awards based upon a review of the Company’s expected achievement against specified financial performance targets. Compensation cost is recognized on a ratable basis over the requisite service period for each series of grants to the extent management has deemed that such awards are probable of vesting based upon the expected achievement against the specified targets. On a periodic basis, management reviews the Company’s expected performance and adjusts the compensation cost, if needed, at such time. The following is a summary of the status of the Company’s stock options as of June 30, 2018 and the stock option activity during the six months ended June 30, 2018. Number of Shares Weighted-Average Exercise Price Weighted-Average Remaining Contractual Term (In Years) Aggregate Intrinsic Value (1) Outstanding at December 31, 2017 3,924,313 $ 7.33 Granted 952,090 9.21 Exercised (936,340 ) 4.51 $ 4,501 Canceled (570,070 ) 8.10 Outstanding at June 30, 2018 3,369,993 $ 8.52 7.03 $ 5,240 Exercisable at June 30, 2018 1,661,323 $ 8.73 5.14 $ 2,621 (1) The aggregate intrinsic value was calculated based on the positive difference between the fair value of the Company’s common stock on June 30, 2018 of $9.65 per share, or the date of exercise, as appropriate, and the exercise price of the underlying options. The following table summarizes the restricted stock unit activity, including the restricted stock units with performance-based vesting, during the six months ended June 30, 2018: Shares Weighted Average Grant Date Fair Value Unvested by December 31, 2017 2,218,704 $ 7.44 Granted 875,705 8.88 Vested and issued (183,143 ) 6.97 Canceled (340,041 ) 7.44 Unvested by June 30, 2018 2,571,225 $ 8.07

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income Taxes	9. Income Taxes For the three months ended June 30, 2018 and 2017, the Company recorded income tax expense of $154 and $108, respectively. For the six months ended June 30, 2018 and 2017, the Company recorded income tax expense of $266 and $187 respectively. The income tax expense relates principally to the Company’s foreign operations. The Company has evaluated the positive and negative evidence bearing upon the realizability of its U.S. net deferred tax assets. As required by the provisions of Accounting Standards Codification (“ASC”) 740, Income Taxes more-likely-than-not On December 22, 2017, the Tax Cuts and Jobs Act (the “Act”) was enacted in the United States. The Act reduces the U.S. federal corporate tax rate from 34% to 21%, requires companies to pay a one-time transition As of June 30, 2018, the Company had not yet completed its accounting for all of the tax effects of the enactment of the Act; however, the Company has made a reasonable estimate of the effects on its existing deferred tax balances and the one-time transition No additional U.S. income taxes or foreign withholding taxes have been provided for any additional outside basis differences inherent in the Company’s foreign entities as these amounts continue to be indefinitely reinvested in foreign operations based on management’s current intentions. Determining the amount of unrecognized deferred tax liability related to any remaining undistributed foreign earnings not subject to the transition tax and additional outside basis difference in these entities (i.e., basis difference in excess of that subject to the one-time transition

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	10. Commitments and Contingencies Legal Matters The Company, from time to time, is party to litigation arising in the ordinary course of business. Management does not believe that the outcome of these claims will have a material adverse effect on the consolidated financial position, results of operations or cash flows of the Company based on the status of proceedings at this time. On May 22, 2017, a lawsuit was filed against Brightcove and two individuals by Ooyala, Inc. (“Ooyala”) and Ooyala Mexico S. de R.L. de C.V. (“Ooyala Mexico”). The lawsuit, which was filed in the United States District Court for the District of Massachusetts, concerns allegations that the two individuals, who are former employees of Ooyala Mexico, misappropriated customer information and other trade secrets and used that information in working for Brightcove. The complaint was amended on June 1, 2017 to remove claims against the two former employees of Ooyala Mexico. The remaining claims against Brightcove are for violation of the Defend Trade Secrets Act of 2016 (18 U.S.C. §1836), violation of the Massachusetts trade secret statute (M.G.L. c. 93, §42), violation of Massachusetts Chapter 93A (M.G.L. c. 93A, §11), and tortious interference with advantageous business relationships. Ooyala and Ooyala Mexico also filed a motion for preliminary injunction (amended at the same time the complaint was amended), seeking to enjoin Brightcove from using any of the allegedly misappropriated information or communicating with customers whose information was allegedly taken, and seeking the return of any information that was taken. On June 16, 2017, Brightcove filed an opposition to the motion for preliminary injunction, and also moved to dismiss the lawsuit. Brightcove’s motion to dismiss was denied on September 6, 2017. The court issued a preliminary injunction on July 10, 2018. The injunction requires Brightcove to delete any Ooyala confidential information obtained from the former Ooyala employees and prohibits Brightcove from using such information to pursue business with twenty-two On October 26, 2017, Realtime Adaptive Streaming LLC filed a complaint against Brightcove and Brightcove’s subsidiary Brightcove Holdings Inc. (collectively, in this paragraph, “Brightcove”) in the United States District Court for the District of Delaware. The complaint alleges that Brightcove infringed five patents related to file compression technology. The complaint seeks monetary damages and injunctive relief. On December 1, 2017, Realtime filed an amended complaint, adding two additional patents to its claims. Brightcove filed a motion to dismiss on January 26, 2018. Realtime filed an opposition to the motion to dismiss on February 9, 2018 and Brightcove filed a reply on February 16, 2018. A ruling on the motion to dismiss has not yet been issued by the court. The Company cannot yet determine whether it is probable that a loss will be incurred in connection with this complaint, nor can the Company reasonably estimate the potential loss, if any. Guarantees and Indemnification Obligations The Company typically enters into indemnification agreements in the ordinary course of business. Pursuant to these agreements, the Company indemnifies and agrees to reimburse the indemnified party for losses and costs incurred by the indemnified party, generally the Company’s customers, in connection with patent, copyright, trade secret, or other intellectual property or personal right infringement claim by third parties with respect to the Company’s technology. The term of these indemnification agreements is generally perpetual after execution of the agreement. Based on when customers first subscribe for the Company’s service, the maximum potential amount of future payments the Company could be required to make under certain of these indemnification agreements is unlimited, however, more recently the Company has typically limited the maximum potential value of such potential future payments in relation to the value of the contract. Based on historical experience and information known as of June 30, 2018, the Company has not incurred any costs for the above guarantees and indemnities. The Company has received requests for indemnification from customers in connection with patent infringement suits brought against the customer by a third party. To date, the Company has not agreed that the requested indemnification is required by the Company’s contract with any such customer. In certain circumstances, the Company warrants that its products and services will perform in all material respects in accordance with its standard published specification documentation in effect at the time of delivery of the licensed products and services to the customer for the warranty period of the product or service. To date, the Company has not incurred significant expense under its warranties and, as a result, the Company believes the estimated fair value of these agreements is immaterial.

Debt

Debt	6 Months Ended
	Jun. 30, 2018
Debt Disclosure [Abstract]
Debt	11. Debt On November 19, 2015, the Company entered into an amended and restated loan and security agreement with a lender (the “Loan Agreement”) providing for up to a $20.0 million asset-based line of credit (the “Line of Credit”) with an expiration date of November 11, 2018. Under the Line of Credit, the Company can borrow up to $20.0 million. Borrowings under the Line of Credit are secured by substantially all of the Company’s assets, excluding intellectual property. Outstanding amounts under the Line of Credit accrue interest at a rate equal to the prime rate or the LIBOR rate plus 2.5%. Under the Loan Agreement, the Company must comply with certain financial covenants, including maintaining a minimum asset coverage ratio. If the outstanding principal during any month is at least $15.0 million, the Company must also maintain a minimum net income threshold based on non-GAAP operating

Segment Information

Segment Information	6 Months Ended
	Jun. 30, 2018
Segment Reporting [Abstract]
Segment Information	12. Segment Information Geographic Data Total revenue from customers by geographic area, based on the location of the customer, was as follows: Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 Revenue: North America $ 22,839 $ 22,080 $ 45,517 $ 45,479 Europe 6,734 6,113 13,047 12,080 Japan 5,468 4,518 10,855 8,287 Asia Pacific 6,456 5,906 13,167 10,127 Other 157 136 262 352 Total revenue $ 41,654 $ 38,753 $ 82,848 $ 76,325 North America is comprised of revenue from the United States, Canada and Mexico. Revenue from customers located in the United States was $21,570 and $20,585 during the three months ended June 30, 2018 and 2017, respectively, and $42,824 and $42,613 during the six months ended June 30, 2018 and 2017, respectively. Other than the United States and Japan, no other country contributed more than 10% of the Company’s total revenue during the three and six months ended June 30, 2018 and 2017. As of June 30, 2018 and December 31, 2017, property and equipment at locations outside the U.S. was not material.

Recently Issued and Adopted Acc

Recently Issued and Adopted Accounting Standards	6 Months Ended
	Jun. 30, 2018
Accounting Changes and Error Corrections [Abstract]
Recently Issued and Adopted Accounting Standards	13. Recently Issued and Adopted Accounting Standards In February 2016, the FASB issued Accounting Standards Update (“ASU”) 2016-02, Leases (Topic 842), Amendments to the FASB Accounting Standards Codification ASU 2016-02 requires ASU 2016-02, a right-of-use asset ASU 2016-02 must ASU 2016-02 requires ASU 2016-02 will In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230) Classification of Certain Cash Receipts and Cash Payments, 2016-15 ASU 2016-15 did In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash ASU 2016-18 is ASU 2016-18 using ASU 2016-18 did In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business ASU 2017-01 did In January 2017, the FASB issued ASU 2017-04, Intangibles – Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment 2017-04 2017-04 ASU 2017-04 did In May 2017 the FASB issued ASU 2017-09, Compensation—Stock Compensation (Topic 718): Scope of Modification Accounting 2017-09 2017-09 2017-09 On December 22, 2017, the Tax Cuts and Jobs Act (the “Act”) was enacted in the United States. The Act reduces the U.S. federal corporate tax rate from 34% to 21%, requires companies to pay a one-time Income Tax Accounting Implications of the Tax Cuts and Jobs Act one-time Income Taxes In addition to the reduction in the federal corporate tax rate and the one-time

Business Description and Basi20

Business Description and Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2018
Business Description	Business Description Brightcove Inc. (the Company) is a global provider of cloud services for video which enable its customers to publish and distribute video to Internet-connected devices quickly, easily and in a cost-effective and high-quality manner. The Company is headquartered in Boston, Massachusetts and was incorporated in the state of Delaware on August 24, 2004. At June 30, 2018, the Company had nine wholly-owned subsidiaries: Brightcove UK Ltd, Brightcove Singapore Pte. Ltd., Brightcove Korea, Brightcove Australia Pty Ltd, Brightcove Holdings, Inc., Brightcove Kabushiki Kaisha (Brightcove KK), Zencoder Inc. (Zencoder), Brightcove FZ-LLC,
Basis of Presentation	Basis of Presentation The accompanying interim condensed consolidated financial statements are unaudited. These condensed consolidated financial statements and notes should be read in conjunction with the audited consolidated financial statements and related notes, together with Management’s Discussion and Analysis of Financial Condition and Results of Operations, contained in the Company’s Annual Report on Form 10-K The accompanying unaudited condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission. Accordingly, certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles in the United States have been condensed or omitted pursuant to such rules and regulations. In the opinion of management, other than the changes resulting from adopting new revenue recognition guidance which also impacted the accounting for the costs to obtain a contract as described in Note 2, the unaudited condensed consolidated financial statements and notes have been prepared on the same basis as the audited consolidated financial statements for the year ended December 31, 2017 contained in the Company’s Annual Report on Form 10-K The Company considers events or transactions that occur after the balance sheet date but prior to the issuance of the financial statements to provide additional evidence for certain estimates or to identify matters that require additional disclosure. Subsequent events have been evaluated as required. The Company has evaluated all subsequent events and determined that there are no material recognized or unrecognized subsequent events requiring disclosure, other than those disclosed in this Report on Form 10-Q. The accompanying condensed consolidated financial statements reflect the application of certain significant accounting policies as described below and elsewhere in these notes to the condensed consolidated financial statements. As of June 30, 2018, other than the changes to revenue recognition as described in Note 2, the Company’s significant accounting policies and estimates, which are detailed in the Company’s Annual Report on Form 10-K
Recently Issued and Adopted Accounting Standards	In February 2016, the FASB issued Accounting Standards Update (“ASU”) 2016-02, Leases (Topic 842), Amendments to the FASB Accounting Standards Codification ASU 2016-02 requires ASU 2016-02, a right-of-use asset ASU 2016-02 must ASU 2016-02 requires ASU 2016-02 will In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230) Classification of Certain Cash Receipts and Cash Payments, 2016-15 ASU 2016-15 did In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash ASU 2016-18 is ASU 2016-18 using ASU 2016-18 did In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business ASU 2017-01 did In January 2017, the FASB issued ASU 2017-04, Intangibles – Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment 2017-04 2017-04 ASU 2017-04 did In May 2017 the FASB issued ASU 2017-09, Compensation—Stock Compensation (Topic 718): Scope of Modification Accounting 2017-09 2017-09 2017-09 On December 22, 2017, the Tax Cuts and Jobs Act (the “Act”) was enacted in the United States. The Act reduces the U.S. federal corporate tax rate from 34% to 21%, requires companies to pay a one-time Income Tax Accounting Implications of the Tax Cuts and Jobs Act one-time Income Taxes In addition to the reduction in the federal corporate tax rate and the one-time
Accounting Standards Update 2014-09 [Member]
Revenue from Contracts with Customers	In May 2014, the Financial Accounting Standards Board (FASB) issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) Revenue from Contracts with Customers catch-up adjustment Revenue Recognition a cumulative catch-up adjustment 1) Identify the contract with a customer 2) Identify the performance obligations in the contract 3) Determine the transaction price 4) Allocate the transaction price to performance obligations in the contract 5) Recognize revenue when or as the Company satisfies a performance obligation

Revenue from Contracts with C21

Revenue from Contracts with Customers (Tables)	6 Months Ended
	Jun. 30, 2018
Summary of Revenue from Contracts with Customers by Business Unit	The following table summarizes revenue from contracts with customers by business unit for the three and six months ended June 30, 2018. Three Months Ended Six Months Ended Revenue by Business Unit Media $ 22,402 $ 45,374 Digital Marketing / Enterprise 18,081 35,061 Volume 1,171 2,413 Total 41,654 82,848
Summary of Receivables, Contract Assets and Contract Liabilities from Contracts with Customers	The following summarizes the opening and closing balances of receivables, contract assets and contract liabilities from contracts with customers. Accounts Contract Assets Deferred Deferred (non-current) Total Deferred Balance at January 1, 2018 $ 26,162 $ 3,124 $ 40,799 $ 359 $ 41,158 Balance at June 30, 2018 25,908 1,881 41,886 137 42,023
Balance Sheet [Member]
Schedule of Changes in Condensed Consolidated Financial Statement	As a result of applying the modified retrospective method to adopt the new revenue guidance, the following adjustments were made on the condensed consolidated balance sheet as of January 1, 2018. As Reported Adjustments Adjusted December 31, Subscription Costs to January 1, Assets Current assets: Cash and cash equivalents $ 26,132 $ 26,132 Accounts receivable, net 25,236 926 26,162 Prepaid expenses 3,991 3,991 Other current assets 3,045 1,861 3,384 8,290 Total current assets 58,404 2,787 3,384 64,575 Property and equipment, net 9,143 9,143 Intangible assets, net 8,236 8,236 Goodwill 50,776 50,776 Deferred tax asset 87 87 Other assets 969 978 1,947 Total assets $ 127,615 $ 2,787 $ 4,362 $ 134,764 Liabilities and stockholders’ equity Current liabilities: Accounts payable $ 6,142 $ 6,142 Accrued expenses 13,621 13,621 Capital lease liability 228 228 Equipment financing 26 26 Deferred revenue 39,370 1,429 40,799 Total current liabilities 59,387 1,429 — 60,816 Deferred revenue, net of current portion 244 115 359 Other liabilities 1,228 1,228 Total liabilities 60,859 1,544 — 62,403 Commitments and contingencies Stockholders’ equity: Undesignated preferred stock — — Common stock 35 35 Additional paid-in 238,700 238,700 Treasury stock (871 ) (871 ) Accumulated other comprehensive loss (809 ) (809 ) Accumulated deficit (170,299 ) 1,243 4,362 (164,694 ) Total stockholders’ equity 66,756 1,243 4,362 72,361 Total liabilities and stockholders’ equity $ 127,615 $ 2,787 $ 4,362 $ 134,764 The following tables compare the reported condensed consolidated balance sheet, statement of operations and cash flows, as of and for the three and six months ended June 30, 2018, to the pro-forma As of June 30, 2018 Balance Sheet As reported Pro forma as if the Assets Current assets: Cash and cash equivalents $ 27,453 27,453 Accounts receivable, net 25,908 25,184 Prepaid expenses 5,639 5,639 Other current assets 7,359 2,315 Total current assets 66,359 60,591 Property and equipment, net 9,927 9,927 Intangible assets, net 6,888 6,888 Goodwill 50,776 50,776 Deferred tax asset 91 91 Other assets 2,211 941 Total assets $ 136,252 $ 129,214 Liabilities and stockholders’ equity Current liabilities: Accounts payable $ 7,309 $ 7,309 Accrued expenses 13,744 13,744 Capital lease liability 35 35 Deferred revenue 41,886 40,893 Total current liabilities 62,974 61,981 Deferred revenue, net of current portion 137 117 Other liabilities 1,044 1,044 Total liabilities 64,155 63,142 Commitments and contingencies Stockholders’ equity: Undesignated preferred stock — — Common stock 36 36 Additional paid-in 246,417 246,417 Treasury stock (871 ) (871 ) Accumulated other comprehensive loss (882 ) (882 ) Accumulated deficit (172,603 ) (178,628 ) Total stockholders’ equity 72,097 66,072 Total liabilities and stockholders’ equity $ 136,252 $ 129,214
Statements of Operations [Member]
Schedule of Changes in Condensed Consolidated Financial Statement	The following summarizes the significant changes on the Company’s condensed consolidated statement of operations for the three months and six months ended June 30, 2018 as a result of the adoption of ASC 606 on January 1, 2018 compared to if the Company had continued to recognize revenues under ASC 605. Three Months Ended June 30, 2018 Six Months Ended June 30, 2018 Statement of Operations As reported Pro forma as if As reported Pro forma as if Revenue: Subscription and support revenue $ 37,867 $ 37,809 $ 75,734 $ 75,722 Professional services and other revenue 3,787 3,787 7,114 7,114 Total revenue 41,654 41,596 82,848 82,836 Cost of revenue: Cost of subscription and support revenue 13,125 13,125 26,581 26,581 Cost of professional services and other revenue 3,493 3,493 7,248 7,248 Total cost of revenue 16,618 16,618 33,829 33,829 Gross profit 25,036 24,978 49,019 49,007 Operating expenses: Research and development 7,743 7,743 15,518 15,518 Sales and marketing 15,265 15,394 28,499 28,907 General and administrative 7,045 7,045 12,435 12,435 Total operating expenses 30,053 30,182 56,452 56,860 Loss from operations (5,017 ) (5,204 ) (7,433 ) (7,853 ) Other income (expense), net (481 ) (481 ) (210 ) (210 ) Loss before income taxes (5,498 ) (5,685 ) (7,643 ) (8,063 ) Provision for income taxes 154 154 266 266 Net loss $ (5,652 ) $ (5,839 ) $ (7,909 ) $ (8,329 ) Net loss per share—basic and diluted $ (0.16 ) $ (0.16 ) $ (0.22 ) $ (0.24 ) Weighted-average number of common shares used in computing net loss per share 35,543,307 35,543,307 35,234,974 35,234,974
Cash Flow Statement [Member]
Schedule of Changes in Condensed Consolidated Financial Statement	The net impact of accounting for revenue under the new guidance had no impact on net loss per share for the three months ended June 30, 2018 and increased net loss per share by $0.02 per basic and diluted share the six months ended June 30, 2018. Six Months Ended June 30, 2018 Statement of Cash Flows As reported Pro forma as if the Operating activities Net loss $ (7,909 ) $ (8,329 ) Adjustments to reconcile net loss to net cash provided by operating activities: Depreciation and amortization 3,434 3,434 Stock-based compensation 3,500 3,500 Provision for reserves on accounts receivable 23 23 Changes in assets and liabilities: Accounts receivable 296 94 Prepaid expenses and other current assets (488 ) (688 ) Other assets (276 ) 16 Accounts payable 924 924 Accrued expenses (62 ) (62 ) Deferred revenue 812 1,342 Net cash provided by operating activities $ 254 $ 254

Cash and Cash Equivalents (Tabl

Cash and Cash Equivalents (Tables)	6 Months Ended
	Jun. 30, 2018
Cash and Cash Equivalents [Abstract]
Schedule of Cash and Cash Equivalents	Cash and cash equivalents as of June 30, 2018 consist of the following: June 30, 2018 Description Contracted Maturity Amortized Cost Fair Market Value Balance Per Balance Sheet Cash Demand $ 19,235 $ 19,235 $ 19,235 Money market funds Demand 8,218 8,218 8,218 Total cash and cash equivalents $ 27,453 $ 27,453 $ 27,453 Cash and cash equivalents as of December 31, 2017 consist of the following: December 31, 2017 Description Contracted Maturity Amortized Cost Fair Market Value Balance Per Balance Sheet Cash Demand $ 17,972 $ 17,972 $ 17,972 Money market funds Demand 8,160 8,160 8,160 Total cash and cash equivalents $ 26,132 $ 26,132 $ 26,132

Net Loss per Share (Tables)

Net Loss per Share (Tables)	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Potentially Dilutive Common Stock Equivalent Shares Excluded from Computation of Weighted-Average Shares Outstanding	The following potentially dilutive common stock equivalent shares have been excluded from the computation of weighted-average shares outstanding as their effect would have been anti-dilutive (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 Options outstanding 3,656 4,117 3,710 4,147 Restricted stock units outstanding 2,458 1,857 2,330 1,860

Fair Value of Financial Instr24

Fair Value of Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Company's Financial Instruments Carried at Fair Value Using Lowest Level of Input	The following tables set forth the Company’s financial instruments carried at fair value using the lowest level of input as of June 30, 2018 and December 31, 2017: June 30, 2018 Quoted Prices in Active Markets for Identical Items (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Assets: Money market funds $ 8,218 $ — $ — $ 8,218 Total assets $ 8,218 $ — $ — $ 8,218 December 31, 2017 Quoted Prices in Active Markets for Identical Items (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Assets: Money market funds $ 8,160 $ — $ — $ 8,160 Total assets $ 8,160 $ — $ — $ 8,160

Stock-based Compensation (Table

Stock-based Compensation (Tables)	6 Months Ended
	Jun. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Weighted-Average Assumptions	The fair value of stock options granted was estimated at the date of grant using the following weighted-average assumptions: Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 Expected life in years 6.1 5.6 6.1 6.0 Risk-free interest rate 2.88 % 1.80 % 2.87 % 2.04 % Volatility 43 % 42 % 43 % 43 % Dividend yield — — — — Weighted-average fair value of stock options granted $ 4.27 $ 2.45 $ 4.22 $ 3.13
Summary of Status of Company's Stock Option Activity	The following is a summary of the status of the Company’s stock options as of June 30, 2018 and the stock option activity during the six months ended June 30, 2018. Number of Shares Weighted-Average Exercise Price Weighted-Average Remaining Contractual Term (In Years) Aggregate Intrinsic Value (1) Outstanding at December 31, 2017 3,924,313 $ 7.33 Granted 952,090 9.21 Exercised (936,340 ) 4.51 $ 4,501 Canceled (570,070 ) 8.10 Outstanding at June 30, 2018 3,369,993 $ 8.52 7.03 $ 5,240 Exercisable at June 30, 2018 1,661,323 $ 8.73 5.14 $ 2,621 (1) The aggregate intrinsic value was calculated based on the positive difference between the fair value of the Company’s common stock on June 30, 2018 of $9.65 per share, or the date of exercise, as appropriate, and the exercise price of the underlying options.
Restricted Stock Units Activity	The following table summarizes the restricted stock unit activity, including the restricted stock units with performance-based vesting, during the six months ended June 30, 2018: Shares Weighted Average Grant Date Fair Value Unvested by December 31, 2017 2,218,704 $ 7.44 Granted 875,705 8.88 Vested and issued (183,143 ) 6.97 Canceled (340,041 ) 7.44 Unvested by June 30, 2018 2,571,225 $ 8.07

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2018
Segment Reporting [Abstract]
Total Revenue from Customers by Geographic Area, Based on Location of Customer	Total revenue from customers by geographic area, based on the location of the customer, was as follows: Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 Revenue: North America $ 22,839 $ 22,080 $ 45,517 $ 45,479 Europe 6,734 6,113 13,047 12,080 Japan 5,468 4,518 10,855 8,287 Asia Pacific 6,456 5,906 13,167 10,127 Other 157 136 262 352 Total revenue $ 41,654 $ 38,753 $ 82,848 $ 76,325

Business Description and Basi27

Business Description and Basis of Presentation - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2018Subsidiaries
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of wholly-owned subsidiaries	9

Revenue from Contracts with C28

Revenue from Contracts with Customers - Summary of Revenue from Contracts with Customers by Business Unit (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenue by Business Unit
Revenues	$ 41,654	$ 38,753	$ 82,848	$ 76,325
Media [Member]
Revenue by Business Unit
Revenues	22,402		45,374
Digital Marketing / Enterprise [Member]
Revenue by Business Unit
Revenues	18,081		35,061
Volume [Member]
Revenue by Business Unit
Revenues	$ 1,171		$ 2,413

Revenue from Contracts with C29

Revenue from Contracts with Customers - Additional Information (Detail) - USD ($)	Dec. 31, 2017	Jun. 30, 2018	Jun. 30, 2018	Jan. 01, 2018
Total reported assets	$ 127,615,000	$ 136,252,000	$ 136,252,000
Total reported liabilities	60,859,000	64,155,000	64,155,000
Deferred revenue recognized	$ 31,500,000		0
Assets recognized to obtain a contract		5,800,000	5,800,000	$ 5,400,000
Amortization expense recognized to obtain a contract		$ 2,000,000	$ 3,800,000
Professional Services [Member] | Maximum [Member]
Revenue, remaining performance obligation, expected timing of satisfaction, period		1 year	1 year
Subscription and Support Revenue [Member]
Revenue, performance obligation, description of timing		2,020	2,020
Unsatisfied performance obligations		$ 109,400,000	$ 109,400,000
Subscription and Support Revenue [Member] | Next Twelve Months [Member]
Unsatisfied performance obligations		86,300,000	$ 86,300,000
Accounting Standards Update 2014-09 [Member]
Subscription term for premium customers			1 year
Total reported assets		136,252,000	$ 136,252,000	134,764,000
Total reported liabilities		$ 64,155,000	$ 64,155,000	62,403,000
Net impact of accounting for revenue, basic and diluted		$ 0	$ 0.02
Accounting Standards Update 2014-09 [Member] | Pro Forma [Member]
Total reported assets		$ 129,214,000	$ 129,214,000
Total reported liabilities		63,142,000	63,142,000
Accounting Standards Update 2014-09 [Member] | Minimum [Member] | Pro Forma [Member]
Total reported assets		7,038,000	7,038,000
Total reported liabilities		1,013,000	1,013,000
Accounting Standards Update 2014-09 [Member] | Accumulated Deficit [Member]
Reduced accumulated deficit				$ (1,243,000)
Accounting Standards Update 2014-09 [Member] | Sales and Marketing [Member]
New accounting pronouncement or change in accounting principle, effect of change on operating results		129,000	408,000
Accounting Standards Update 2014-09 [Member] | Subscription Arrangement [Member]
New accounting pronouncement or change in accounting principle, effect of change on operating results		58,000	12,000
Accounting Standards Update 2014-09 [Member] | Costs to Obtain Contract [Member]
Reduced accumulated deficit		$ (4,362,000)	$ (4,362,000)

Revenue from Contracts with C30

Revenue from Contracts with Customers - Schedule of Changes in Condensed Consolidated Balance Sheet (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Jan. 01, 2018	Dec. 31, 2017	Jun. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 27,453		$ 26,132	$ 28,351	$ 36,813
Accounts receivable, net	25,908		25,236
Prepaid expenses	5,639		3,991
Other current assets	7,359		3,045
Total current assets	66,359		58,404
Property and equipment, net	9,927		9,143
Intangible assets, net	6,888		8,236
Goodwill	50,776		50,776
Deferred tax asset	91		87
Other assets	2,211		969
Total assets	136,252		127,615
Current liabilities:
Accounts payable	7,309		6,142
Accrued expenses	13,744		13,621
Capital lease liability	35		228
Equipment financing			26
Deferred revenue	41,886		39,370
Total current liabilities	62,974		59,387
Deferred revenue, net of current portion	137		244
Other liabilities	1,044		1,228
Total liabilities	64,155		60,859
Commitments and contingencies
Stockholders' equity:
Undesignated preferred stock
Common stock	36		35
Additional paid-in capital	246,417		238,700
Treasury stock	(871)		(871)
Accumulated other comprehensive loss	(882)		(809)
Accumulated deficit	(172,603)		(170,299)
Total stockholders' equity	72,097		66,756
Total liabilities and stockholders' equity	136,252		$ 127,615
Accounting Standards Update 2014-09 [Member]
Current assets:
Cash and cash equivalents	27,453	$ 26,132
Accounts receivable, net	25,908	26,162
Prepaid expenses	5,639	3,991
Other current assets	7,359	8,290
Total current assets	66,359	64,575
Property and equipment, net	9,927	9,143
Intangible assets, net	6,888	8,236
Goodwill	50,776	50,776
Deferred tax asset	91	87
Other assets	2,211	1,947
Total assets	136,252	134,764
Current liabilities:
Accounts payable	7,309	6,142
Accrued expenses	13,744	13,621
Capital lease liability	35	228
Equipment financing		26
Deferred revenue	41,886	40,799
Total current liabilities	62,974	60,816
Deferred revenue, net of current portion	137	359
Other liabilities	1,044	1,228
Total liabilities	64,155	62,403
Commitments and contingencies
Stockholders' equity:
Undesignated preferred stock
Common stock	36	35
Additional paid-in capital	246,417	238,700
Treasury stock	(871)	(871)
Accumulated other comprehensive loss	(882)	(809)
Accumulated deficit	(172,603)	(164,694)
Total stockholders' equity	72,097	72,361
Total liabilities and stockholders' equity	136,252	134,764
Accounting Standards Update 2014-09 [Member] | Pro Forma [Member]
Current assets:
Cash and cash equivalents	27,453
Accounts receivable, net	25,184
Prepaid expenses	5,639
Other current assets	2,315
Total current assets	60,591
Property and equipment, net	9,927
Intangible assets, net	6,888
Goodwill	50,776
Deferred tax asset	91
Other assets	941
Total assets	129,214
Current liabilities:
Accounts payable	7,309
Accrued expenses	13,744
Capital lease liability	35
Deferred revenue	40,893
Total current liabilities	61,981
Deferred revenue, net of current portion	117
Other liabilities	1,044
Total liabilities	63,142
Commitments and contingencies
Stockholders' equity:
Undesignated preferred stock
Common stock	36
Additional paid-in capital	246,417
Treasury stock	(871)
Accumulated other comprehensive loss	(882)
Accumulated deficit	(178,628)
Total stockholders' equity	66,072
Total liabilities and stockholders' equity	$ 129,214
Accounting Standards Update 2014-09 [Member] | Previously Reported [Member]
Current assets:
Cash and cash equivalents		26,132
Accounts receivable, net		25,236
Prepaid expenses		3,991
Other current assets		3,045
Total current assets		58,404
Property and equipment, net		9,143
Intangible assets, net		8,236
Goodwill		50,776
Deferred tax asset		87
Other assets		969
Total assets		127,615
Current liabilities:
Accounts payable		6,142
Accrued expenses		13,621
Capital lease liability		228
Equipment financing		26
Deferred revenue		39,370
Total current liabilities		59,387
Deferred revenue, net of current portion		244
Other liabilities		1,228
Total liabilities		60,859
Commitments and contingencies
Stockholders' equity:
Undesignated preferred stock
Common stock		35
Additional paid-in capital		238,700
Treasury stock		(871)
Accumulated other comprehensive loss		(809)
Accumulated deficit		(170,299)
Total stockholders' equity		66,756
Total liabilities and stockholders' equity		127,615
Accounting Standards Update 2014-09 [Member] | Restatement Adjustment [Member] | Subscription Arrangement [Member]
Current assets:
Accounts receivable, net		926
Other current assets		1,861
Total current assets		2,787
Total assets		2,787
Current liabilities:
Deferred revenue		1,429
Total current liabilities		1,429
Deferred revenue, net of current portion		115
Total liabilities		1,544
Commitments and contingencies
Stockholders' equity:
Undesignated preferred stock
Accumulated deficit		1,243
Total stockholders' equity		1,243
Total liabilities and stockholders' equity		2,787
Accounting Standards Update 2014-09 [Member] | Restatement Adjustment [Member] | Costs to Obtain Contract [Member]
Current assets:
Other current assets		3,384
Total current assets		3,384
Other assets		978
Total assets		4,362
Current liabilities:
Commitments and contingencies
Stockholders' equity:
Undesignated preferred stock
Accumulated deficit		4,362
Total stockholders' equity		4,362
Total liabilities and stockholders' equity		$ 4,362

Revenue from Contracts with C31

Revenue from Contracts with Customers - Schedule of Changes in Condensed Consolidated Statement of Operations (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenue:
Total revenue	$ 41,654	$ 38,753	$ 82,848	$ 76,325
Cost of revenue:
Total cost of revenue	16,618	16,578	33,829	31,796
Gross profit	25,036	22,175	49,019	44,529
Operating expenses:
Research and development	7,743	8,279	15,518	16,473
Sales and marketing	15,265	15,904	28,499	29,805
General and administrative	7,045	5,876	12,435	11,267
Total operating expenses	30,053	30,059	56,452	57,545
Loss from operations	(5,017)	(7,884)	(7,433)	(13,016)
Other income (expense), net	(481)	314	(210)	452
Loss before income taxes	(5,498)	(7,570)	(7,643)	(12,564)
Provision for income taxes	154	108	266	187
Net loss	$ (5,652)	$ (7,678)	$ (7,909)	$ (12,751)
Net loss per share-basic and diluted	$ (0.16)	$ (0.22)	$ (0.22)	$ (0.37)
Weighted-average number of common shares used in computing net loss per share	35,543,307	34,247,058	35,234,974	34,152,109
Subscription and Support Revenue [Member]
Revenue:
Total revenue	$ 37,867	$ 35,528	$ 75,734	$ 69,770
Cost of revenue:
Total cost of revenue	13,125	13,102	26,581	25,256
Professional Services and Other Revenue [Member]
Revenue:
Total revenue	3,787	3,225	7,114	6,555
Cost of revenue:
Total cost of revenue	3,493	$ 3,476	7,248	$ 6,540
Accounting Standards Update 2014-09 [Member]
Revenue:
Total revenue	41,654		82,848
Cost of revenue:
Total cost of revenue	16,618		33,829
Gross profit	25,036		49,019
Operating expenses:
Research and development	7,743		15,518
Sales and marketing	15,265		28,499
General and administrative	7,045		12,435
Total operating expenses	30,053		56,452
Loss from operations	(5,017)		(7,433)
Other income (expense), net	(481)		(210)
Loss before income taxes	(5,498)		(7,643)
Provision for income taxes	154		266
Net loss	$ (5,652)		$ (7,909)
Net loss per share-basic and diluted	$ (0.16)		$ (0.22)
Weighted-average number of common shares used in computing net loss per share	35,543,307		35,234,974
Accounting Standards Update 2014-09 [Member] | Subscription and Support Revenue [Member]
Revenue:
Total revenue	$ 37,867		$ 75,734
Cost of revenue:
Total cost of revenue	13,125		26,581
Accounting Standards Update 2014-09 [Member] | Professional Services and Other Revenue [Member]
Revenue:
Total revenue	3,787		7,114
Cost of revenue:
Total cost of revenue	3,493		7,248
Accounting Standards Update 2014-09 [Member] | Pro Forma [Member]
Revenue:
Total revenue	41,596		82,836
Cost of revenue:
Total cost of revenue	16,618		33,829
Gross profit	24,978		49,007
Operating expenses:
Research and development	7,743		15,518
Sales and marketing	15,394		28,907
General and administrative	7,045		12,435
Total operating expenses	30,182		56,860
Loss from operations	(5,204)		(7,853)
Other income (expense), net	(481)		(210)
Loss before income taxes	(5,685)		(8,063)
Provision for income taxes	154		266
Net loss	$ (5,839)		$ (8,329)
Net loss per share-basic and diluted	$ (0.16)		$ (0.24)
Weighted-average number of common shares used in computing net loss per share	35,543,307		35,234,974
Accounting Standards Update 2014-09 [Member] | Pro Forma [Member] | Subscription and Support Revenue [Member]
Revenue:
Total revenue	$ 37,809		$ 75,722
Cost of revenue:
Total cost of revenue	13,125		26,581
Accounting Standards Update 2014-09 [Member] | Pro Forma [Member] | Professional Services and Other Revenue [Member]
Revenue:
Total revenue	3,787		7,114
Cost of revenue:
Total cost of revenue	$ 3,493		$ 7,248

Revenue from Contracts with C32

Revenue from Contracts with Customers - Schedule of Changes in Condensed Consolidated Statement of Cash Flows (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Operating activities
Net loss	$ (5,652)	$ (7,678)	$ (7,909)	$ (12,751)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization			3,434	3,665
Stock-based compensation	1,832	$ 1,686	3,500	3,476
Provision for reserves on accounts receivable			23	96
Changes in assets and liabilities:
Accounts receivable			296	(1,606)
Prepaid expenses and other current assets			(488)	(2,421)
Other assets			(276)	92
Accounts payable			924	3,959
Accrued expenses			(62)	(2,457)
Deferred revenue			812	1,233
Net cash provided by operating activities			254	$ (6,714)
Accounting Standards Update 2014-09 [Member]
Operating activities
Net loss	(5,652)		(7,909)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization			3,434
Stock-based compensation			3,500
Provision for reserves on accounts receivable			23
Changes in assets and liabilities:
Accounts receivable			296
Prepaid expenses and other current assets			(488)
Other assets			(276)
Accounts payable			924
Accrued expenses			(62)
Deferred revenue			812
Net cash provided by operating activities			254
Accounting Standards Update 2014-09 [Member] | Pro Forma [Member]
Operating activities
Net loss	$ (5,839)		(8,329)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization			3,434
Stock-based compensation			3,500
Provision for reserves on accounts receivable			23
Changes in assets and liabilities:
Accounts receivable			94
Prepaid expenses and other current assets			(688)
Other assets			16
Accounts payable			924
Accrued expenses			(62)
Deferred revenue			1,342
Net cash provided by operating activities			$ 254

Revenue from Contracts with C33

Revenue from Contracts with Customers - Summary of Receivables, Contract Assets and Contract Liabilities from Contracts with Customers (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Jan. 01, 2018	Dec. 31, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Accounts receivable, net	$ 25,908		$ 25,236
Deferred Revenue (current)	41,886		39,370
Deferred Revenue (non- current)	137		$ 244
Accounting Standards Update 2014-09 [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Accounts receivable, net	25,908	$ 26,162
Contract Assets (current)	1,881	3,124
Deferred Revenue (current)	41,886	40,799
Deferred Revenue (non- current)	137	359
Total Deferred Revenue	$ 42,023	$ 41,158

Concentration of Credit Risk -

Concentration of Credit Risk - Additional Information (Detail) - Customer	3 Months Ended	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2018	Dec. 31, 2017
Risks and Uncertainties [Abstract]
Number of customers accounted for more than 10% of accounts receivable, net		0	0
Number of customers accounted for more than 10% of total revenue	0	0
Threshold percentage of total revenues required for major customer classification	10.00%	10.00%

Cash and Cash Equivalents - Add

Cash and Cash Equivalents - Additional Information (Detail) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Cash and Cash Equivalents [Abstract]
Short-term investments	$ 0	$ 0
Long-term investments	$ 0	$ 0

Cash and Cash Equivalents - Sch

Cash and Cash Equivalents - Schedule of Cash and Cash Equivalents (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Investment Holdings [Line Items]
Amortized Cost	$ 27,453	$ 26,132
Fair Market Value	27,453	26,132
Balance Per Balance Sheet	27,453	26,132
Cash [Member]
Investment Holdings [Line Items]
Amortized Cost	19,235	17,972
Fair Market Value	19,235	17,972
Balance Per Balance Sheet	19,235	17,972
Money Market Funds [Member]
Investment Holdings [Line Items]
Amortized Cost	8,218	8,160
Fair Market Value	8,218	8,160
Balance Per Balance Sheet	$ 8,218	$ 8,160

Net Loss per Share - Potentiall

Net Loss per Share - Potentially Dilutive Common Stock Equivalent Shares Excluded from Computation of Weighted-Average Shares Outstanding (Detail) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Options Outstanding [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive common shares excluded from the computation of weighted-average shares outstanding	3,656	4,117	3,710	4,147
RSUs [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive common shares excluded from the computation of weighted-average shares outstanding	2,458	1,857	2,330	1,860

Fair Value of Financial Instr38

Fair Value of Financial Instruments - Company's Financial Instruments Carried at Fair Value Using Lowest Level of Input (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	$ 8,218	$ 8,160
Total assets	8,218	8,160
Quoted Prices in Active Markets for Identical Items (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	8,218	8,160
Total assets	$ 8,218	$ 8,160

Stock-based Compensation - Weig

Stock-based Compensation - Weighted Average Assumptions (Detail) - Stock Compensation Plan [Member] - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life in years	6 years 1 month 6 days	5 years 7 months 6 days	6 years 1 month 6 days	6 years
Risk-free interest rate	2.88%	1.80%	2.87%	2.04%
Volatility	43.00%	42.00%	43.00%	43.00%
Dividend yield	0.00%	0.00%	0.00%	0.00%
Weighted-average fair value of stock options granted	$ 4.27	$ 2.45	$ 4.22	$ 3.13

Stock-based Compensation - Addi

Stock-based Compensation - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	$ 1,832	$ 1,686	$ 3,500	$ 3,476
Unrecognized stock-based compensation expense	$ 18,308		$ 18,308
Weighted average period			2 years 7 months 6 days
Options Outstanding [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options, Granted			952,090
Options Outstanding [Member] | Two Thousand and Eighteen Plan [Member] | Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options, Granted			440,000
RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units, Granted			875,705
RSUs [Member] | Key Executives [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units, Granted	445,000
RSUs [Member] | Two Thousand and Eighteen Plan [Member] | Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units, Granted			400,000

Stock-based Compensation - Summ

Stock-based Compensation - Summary of Stock Option Activity (Detail) - Options Outstanding [Member] $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2018USD ($)$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, Outstanding at December 31, 2017 | shares	3,924,313
Shares, Granted | shares	952,090
Shares, Exercised | shares	(936,340)
Shares, Canceled | shares	(570,070)
Shares, Outstanding at June 30, 2018 | shares	3,369,993
Shares, Exercisable at June 30, 2018 | shares	1,661,323
Weighted-Average Exercise Price, Outstanding at December 31, 2017 | $ / shares	$ 7.33
Weighted-Average Exercise Price, Granted | $ / shares	9.21
Weighted-Average Exercise Price, Exercised | $ / shares	4.51
Weighted-Average Exercise Price, Canceled | $ / shares	8.10
Weighted-Average Exercise Price, Outstanding at June 30, 2018 | $ / shares	8.52
Weighted-Average Exercise Price, Exercisable at June 30, 2018 | $ / shares	$ 8.73
Weighted-Average Remaining Contractual Term, Outstanding at June 30, 2018	7 years 11 days
Weighted-Average Remaining Contractual Term, Exercisable at June 30, 2018	5 years 1 month 20 days
Aggregate Intrinsic Value, Exercised | $	$ 4,501
Aggregate Intrinsic Value, Outstanding at June 30, 2018 | $	5,240
Aggregate Intrinsic Value, Exercisable at June 30, 2018 | $	$ 2,621

Stock-based Compensation - Su42

Stock-based Compensation - Summary of Stock Option Activity (Parenthetical) (Detail)	Jun. 30, 2018$ / shares
Options Outstanding [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate Intrinsic Value, Estimated per share fair value of common stock	$ 9.65

Stock-based Compensation - Rest

Stock-based Compensation - Restricted Stock Units Activity (Detail) - RSUs [Member]	6 Months Ended
	Jun. 30, 2018$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
Unvested Shares, Beginning Balance | shares	2,218,704
Granted | shares	875,705
Vested and issued | shares	(183,143)
Canceled | shares	(340,041)
Unvested Shares, Ending Balance | shares	2,571,225
Weighted Average Grant Date Fair Value, Beginning Balance | $ / shares	$ 7.44
Weighted Average Grant Date Fair Value, Granted | $ / shares	8.88
Weighted Average Grant Date Fair Value, Vested and issued | $ / shares	6.97
Weighted Average Grant Date Fair Value, Canceled | $ / shares	7.44
Weighted Average Grant Date Fair Value, Ending Balance | $ / shares	$ 8.07

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Income Taxes [Line Items]
Income tax expense	$ 154,000	$ 108,000	$ 266,000	$ 187,000
Federal corporate tax rate			21.00%		34.00%
Japan [Member]
Income Taxes [Line Items]
Valuation allowance	$ 0		$ 0		$ 0

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail)	Dec. 01, 2017Patents	Oct. 26, 2017Patents	Jun. 30, 2018USD ($)Customer
Commitment And Contingencies [Line Items]
Cost for Guarantees and indemnities | $			$ 0
Latin America [Member]
Commitment And Contingencies [Line Items]
Number of prospective customers | Customer			22
Realtime Adaptive Streaming LLC [Member]
Commitment And Contingencies [Line Items]
Complaint filed against patents allegedly infringed | Patents	2	5

Debt - Additional Information (

Debt - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2018USD ($)
Debt Instrument [Line Items]
Debt instrument term	If the outstanding principal during any month is at least $15.0 million, the Company must also maintain a minimum net income threshold based on non-GAAP operatingmeasures.
Debt amount outstanding	$ 0
Secured Line of Credit [Member]
Debt Instrument [Line Items]
Line of credit, agreement start date	Nov. 19, 2015
Line of credit, expiration Date	Nov. 11, 2018
Line of credit maximum borrowing capacity	$ 20,000,000
Percentage points added to prime rate or LIBOR	2.50%
Minimum [Member]
Debt Instrument [Line Items]
Minimum outstanding principal threshold limit	$ 15,000,000

Segment Information - Total Rev

Segment Information - Total Revenue from Customers by Geographic Area, Based on Location of Customer (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 41,654	$ 38,753	$ 82,848	$ 76,325
North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	22,839	22,080	45,517	45,479
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	6,734	6,113	13,047	12,080
Japan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	5,468	4,518	10,855	8,287
Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	6,456	5,906	13,167	10,127
Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 157	$ 136	$ 262	$ 352

Segment Information - Additiona

Segment Information - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from customers	$ 41,654	$ 38,753	$ 82,848	$ 76,325
Revenue percentage from other country to the company's total revenue	10.00%	10.00%	10.00%	10.00%
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from customers	$ 21,570	$ 20,585	$ 42,824	$ 42,613

Recently Issued and Adopted A49

Recently Issued and Adopted Accounting Standards - Additional Information (Detail)	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Accounting Changes and Error Corrections [Abstract]
Federal corporate tax rate	21.00%	34.00%