Shutterstock (SSTK) 10-K 27 Feb 15 2014 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2014	Feb. 25, 2015	Jun. 30, 2014
Document and Entity Information
Entity Registrant Name	Shutterstock, Inc.
Entity Central Index Key	1549346
Document Type	10-K
Document Period End Date	31-Dec-14
Amendment Flag	FALSE
Current Fiscal Year End Date	-19
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Public Float			$1,334,924,243
Entity Minimum Percentage Threshold for Ownership in Common Stock for Holders to be Excluded from the Calculation of Aggregate Market Value.			10.00%
Entity Common Stock, Shares Outstanding		35,664,246
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY

CONSOLIDATED_BALANCE_SHEETS

CONSOLIDATED BALANCE SHEETS (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Current assets:
Cash and cash equivalents	$233,453	$155,355
Short-term investments	54,844	54,429
Credit card receivables	2,451	2,083
Accounts receivable, net	15,251	6,081
Prepaid expenses and other current assets	12,141	19,809
Deferred tax assets, net	5,390	5,431
Total current assets	323,530	243,188
Property and equipment, net	26,744	20,256
Intangible assets, net	4,934	853
Goodwill	10,186	1,423
Deferred tax assets, net	16,484	10,720
Other assets	1,899	2,048
Total assets	383,777	278,488
Current liabilities:
Accounts payable	5,334	4,164
Accrued expenses	25,073	23,638
Contributor royalties payable	11,933	9,180
Deferred revenue	75,789	52,100
Other liabilities	2,198	2,846
Total current liabilities	120,327	91,928
Other non-current liabilities	12,017	3,961
Total liabilities	132,344	95,889
Commitments and contingencies (Note 8)
Stockholders' equity/members' deficit
Common stock, $0.01 par value; 200,000 shares authorized; 35,603 and 35,071 shares outstanding as of December 31, 2014 and December 31, 2013, respectively	356	351
Additional paid-in capital	174,821	127,443
Accumulated comprehensive (loss) income	-629	9
Retained earnings/accumulated deficit	76,885	54,796
Total stockholders' equity/members' deficit	251,433	182,599
Total liabilities and stockholders' equity/members' deficit	$383,777	$278,488

CONSOLIDATED_BALANCE_SHEETS_Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, except Per Share data, unless otherwise specified
CONSOLIDATED BALANCE SHEETS
Common stock, par value (in dollars per share)	$0.01	$0.01
Common stock, shares authorized	200,000	200,000
Common stock, shares outstanding	35,603	35,071

CONSOLIDATED_STATEMENTS_OF_OPE

CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2012
CONSOLIDATED STATEMENTS OF OPERATIONS
Revenue	$169,616
Operating expenses:
Cost of revenue	64,676
Sales and marketing	45,107
Product development	16,330
General and administrative	21,651
Total operating expenses	147,764
Income from operations	21,852
Other (expense) income, net	-47
Income before income taxes	21,805
Provision (benefit) for income taxes	-25,738
Net income	47,543
Less:
Preferred interest distributed	9,000
Undistributed earnings (loss) to participating shareholder	-4,086
Net income available to common shareholders	$42,629
Net income per basic share available to common shareholders/members:
Distributed (in dollars per share)	$1.14
Undistributed (in dollars per share)	$0.65
Basic (in dollars per share)	$1.79
Net income per diluted share available to common shareholders/members:
Distributed (in dollars per share)	$1.13
Undistributed (in dollars per share)	$0.66
Diluted (in dollars per share)	$1.79
Weighted average shares outstanding:
Basic (in shares)	23,785,299
Diluted (in shares)	23,833,223

CONSOLIDATED_STATEMENTS_OF_COM

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$22,089	$26,479	$47,543
Foreign currency translation (loss) gain	-670	3
Unrealized gain on investments, net of tax	32	6
Other comprehensive (loss) income	-638	9	0
Comprehensive income	$21,451	$26,488	$47,543

CONSOLIDATED_STATEMENTS_OF_STO

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY/MEMBERS' DEFICIT (USD $)	Common Membership Capital	Total Members' Deficit	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit/Retained Earnings	Total
In Thousands, except Share data, unless otherwise specified
Balance at Dec. 31, 2011	$5,699	($57,928)				($63,627)
Increase (Decrease) in Stockholders' Equity
Common members' distribution		-27,000				-27,000
Conversion to corporation	-5,699		283	-36,114		71,401	29,871
Conversion to corporation (in shares)			28,338,281
Equity-based compensation				7,558			7,558
Issuance of common stock in connection with the initial public/secondary offering, net of issuance costs of $4,052 and $11,085 during 2013 and 2012 respectively			52	76,838			76,890
Issuance of common stock in connection with the initial public/secondary offering, net of issuance costs of $4,052 and $11,085 during 2013 and 2012 respectively (in shares)			5,175,000
Net income						47,543	47,543
Balance at Dec. 31, 2012			335	48,282		28,317	76,934
Balance (in shares) at Dec. 31, 2012			33,513,281
Increase (Decrease) in Stockholders' Equity
Equity-based compensation				6,208			6,208
Offering costs in connection with initial public offering				-20			-20
Issuance of common stock in connection with the initial public/secondary offering, net of issuance costs of $4,052 and $11,085 during 2013 and 2012 respectively			12	64,936			64,948
Issuance of common stock in connection with the initial public/secondary offering, net of issuance costs of $4,052 and $11,085 during 2013 and 2012 respectively (in shares)			1,150,000
Issuance of common stock in connection with employee stock option exercises			3	4,784			4,787
Issuance of common stock in connection with employee stock option exercises (in shares)			312,807
Issuance of common stock in connection with employee stock purchase plan			1	1,912			1,913
Issuance of common stock in connection with employee stock purchase plan (in shares)			94,894
Tax benefit from exercise of employee stock options				1,341			1,341
Foreign currency translation					3		3
Unrealized gain (loss) on investments					6		6
Net income						26,479	26,479
Balance at Dec. 31, 2013			351	127,443	9	54,796	182,599
Balance (in shares) at Dec. 31, 2013			35,070,982
Increase (Decrease) in Stockholders' Equity
Equity-based compensation				22,440			22,440
Issuance of common stock in connection with employee stock option exercises			5	9,677			9,682
Issuance of common stock in connection with employee stock option exercises (in shares)			493,171
Issuance of common stock in connection with employee stock purchase plan				2,124			2,124
Issuance of common stock in connection with employee stock purchase plan (in shares)			38,395
Tax benefit from exercise of employee stock options				13,137			13,137
Foreign currency translation					-667		-670
Unrealized gain (loss) on investments					29		32
Net income						22,089	22,089
Balance at Dec. 31, 2014			$356	$174,821	($629)	$76,885	$251,433
Balance (in shares) at Dec. 31, 2014			35,602,548

CONSOLIDATED_STATEMENTS_OF_STO1

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY/MEMBERS' DEFICIT (Parenthetical) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY/MEMBERS' DEFICIT
Issuance of common stock in connection with the initial public/secondary offering, issuance costs	$4,052	$11,085

CONSOLIDATED_STATEMENTS_OF_CAS

CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$22,089	$26,479	$47,543
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	7,917	3,870	2,640
Write-off of property and equipment	367
Deferred taxes	-4,897	15,848	-31,300
Non-cash equity-based compensation	23,768	6,208	10,385
Change in fair value of contingent consideration	200
Excess tax benefit from the exercise of stock options	-13,137	-1,341
Bad debt reserve	565	519	326
Chargeback and sales refund reserves	235	355
Amortization of deferred financing fees	0	125	41
Changes in operating assets and liabilities:
Credit card receivables	-408	-710	-409
Accounts receivable	-9,741	-4,862	-1,417
Prepaid expenses and other current and non-current assets	20,490	-16,857	113
Due from related party			168
Accounts payable and other current and non-current liabilities	10,052	10,377	6,238
Contributors royalties payable	2,753	2,196	1,723
Deferred revenue	22,606	14,166	9,483
Net cash provided by operating activities	82,859	56,373	45,534
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	-17,950	-14,068	-3,808
Purchase of investments	-300,350	-115,019
Sale and maturities of investments	299,967	60,595
Acquisition of business	-10,056
Acquisition of digital content	-721
Acquisition of intangibles			-254
Security deposit (payment)/receipt	97	-1,594	-197
Net cash used in investing activities	-29,013	-70,086	-4,259
CASH FLOWS FROM FINANCING ACTIVITIES
Net proceeds from issuance of common stock in follow-on offering		65,895
Net proceeds from issuance of common stock in initial public offering			81,811
Proceeds from exercise of stock options	9,682	4,787
Proceeds from issuance of common stock under Employee Stock Purchase Plan	2,124	1,913
Excess tax benefit from the exercise of stock options	13,137	1,341
Proceeds from term loan			12,000
Payment of term loan		-6,000	-6,000
Payment of term loan fee			-166
Payment of offering fees		-967	-4,921
Members' distributions			-36,000
Net cash provided by (used in) financing activities	24,943	66,969	46,724
Effect of foreign exchange rate changes on cash	-691	3
Net increase in cash and cash equivalents	78,098	53,259	87,999
Cash and cash equivalents-Beginning	155,355	102,096	14,097
Cash and cash equivalents-Ending	233,453	155,355	102,096
Cash paid for:
Income taxes	254	14,194	4,845
Interest		34	67
Supplemental Disclosure of Non-Cash Investing and Financing Activities:
Capital expenditures in accounts payable and other liabilities	$3,728	$4,616

Summary_of_Operations_and_Sign

Summary of Operations and Significant Accounting Policies	12 Months Ended
	Dec. 31, 2014
Summary of Operations and Significant Accounting Policies
Summary of Operations and Significant Accounting Policies	(1) Summary of Operations and Significant Accounting Policies
	Summary of Operations
	Shutterstock, Inc. (the "Company" or "Shutterstock") operates an industry-leading global marketplace for commercial digital content, including images, video and music. Commercial digital imagery consists of licensed photographs, illustrations and video clips that companies use in their visual communications, such as websites, digital and print marketing materials, corporate communications, books, publications and video content while commercial music consists of high-quality music tracks which are often used to complement the digital imagery. The Company licenses commercial digital imagery and music to its customers. Contributors upload their digital imagery and music tracks to the Company's website in exchange for a royalty payment based on customer download activity. The Company is headquartered in New York City with offices in Amsterdam, Berlin, Chicago, Denver, London, Paris, and San Francisco.
	Principles of Consolidation
	The consolidated financial statements reflect the operations of the Company and its wholly-owned subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation.
	Reorganization
	In May 2012, in connection with the filing of a registration statement for the Company's initial public offering (the "IPO"), Shutterstock Images LLC, a New York limited liability company (the "LLC") formed Shutterstock, Inc., a Delaware corporation, as a wholly-owned subsidiary of the LLC. On October 5, 2012, the LLC reorganized, by way of a merger of the LLC with and into Shutterstock, Inc. with Shutterstock, Inc. surviving in the merger (the "Reorganization"). In connection with the Reorganization, the preferred and common membership interests in the LLC, including any interests that vested upon the Reorganization, were exchanged for an aggregate of 28,338,281 shares of Shutterstock, Inc. common stock.
	Initial Public Offering
	On October 16, 2012, the Company completed an IPO of 5,175,000 shares of its common stock, including 675,000 shares sold as a result of the underwriters' exercise of their overallotment option, at a price of $17.00 per share. The IPO resulted in net proceeds to the Company of approximately $81,811 after deducting underwriting discounts and commissions, and before deducting total expenses incurred in connection with the offering of $4,927.
	Follow-On Offering
	On September 25, 2013, the Company completed a follow-on offering of 5,290,000 shares of its common stock, which included 690,000 shares of common stock sold by the Company and certain stockholders as a result of the underwriters' exercise of their option to purchase additional shares, at a price of $60.00 per share. The Company sold 1,150,000 shares of common stock in the offering and the selling stockholders sold 4,140,000 shares of common stock in the offering. The aggregate offering price for shares sold by the Company in the offering resulted in net proceeds to the Company of $65,895 after deducting underwriting discounts and commissions, and before deducting total expenses incurred in connection with the offering of approximately $947.
	Acquisition of Virtual Moment, LLC
	On March 14, 2014, the Company acquired certain assets and certain liabilities of Virtual Moment, LLC (dba WebDAM) ("WebDAM") pursuant to an asset purchase arrangement. The transaction was accounted for using the acquisition method, and accordingly, the results of the acquired business have been included in the Company's results of operations from the acquisition date.
	WebDAM sells digital asset management software services through its cloud-based platform to marketing and creative enterprise organizations. WebDAM's products help organizations manage, search, distribute and collaborate on creative digital files in order to grow its brands and reach new audiences. WebDAM's offerings are particularly attractive to large enterprises, which make up a significant portion of its client base. The Company believes that this acquisition will strengthen its strategic position with its enterprise customers as well as broaden its product offerings to larger companies.
	The fair value of consideration transferred in this business combination was allocated to the intangible assets acquired and liabilities assumed at the acquisition date, with the remaining unallocated amount recorded as goodwill.
	The total purchase price of $12,416 consists of an initial cash payment of $10,056 and $2,360 in contingent consideration based on certain performance criteria of post-acquisition revenue. The fair value of the contingent consideration was determined using a Monte-Carlo simulation approach. The aggregate purchase price was allocated to the assets acquired and liabilities assumed as follows:
	Intangible assets:
	Trade name		$	500
	Customer relationships			2,800
	Developed technology			600
	Goodwill			8,763
	Total assets acquired			836
	Total liabilities assumed			(1,083	)
	Total		$	12,416
	The identifiable intangible assets have a weighted average life of approximately seven years and are being amortized on a straight-line basis which approximates the pattern of use. The fair value of the customer relationships was determined using a variation of the income approach known as excess earnings method. The fair values of the trade name and developed technology were both determined using the relief-from-royalty method. The goodwill arising from the transaction is primarily attributable to expected operational synergies and is deductible for income tax purposes. As a result of the acquisition, the Company recorded approximately $400 of professional fees for the year ended December 31, 2014 which is included in general and administrative expense.
	The contingent consideration is required to be paid no later than July 2016 and is based on post-acquisition revenue from February 2015 through January 2016. The minimum payment is $1,000 with escalating payments based on achievement of various revenue amounts. As of December 31, 2014, the Company's contingent consideration balance is $2,560 and is included other non-current liabilities.
	Pro forma results of operations have not been presented because the effect of this business combination was not material to the Company's consolidated results of operations.
	Use of Estimates
	The preparation of the consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires the Company's management to make a number of estimates and assumptions relating to the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the consolidated financial statements, and the reported amounts of revenue and expenses during the period. The Company evaluates its significant estimates on an ongoing basis, including, but not limited to allowance for doubtful accounts, contingent consideration, sales refund reserve, goodwill, intangibles, non-cash equity-based compensation, income tax provision and for certain non-income tax accruals. The Company bases its estimates on historical experience and on various other assumptions that it believes to be reasonable under the circumstances, the results of which form the basis for making judgments about carrying values of assets and liabilities that are not readily apparent from other sources. Actual results could differ from those estimates.
	Sales, Value-Added and Use Taxes
	Amounts charged to customers or paid on behalf of customers related to sales taxes, value-added taxes and other usage taxes are classified net of revenue. Where appropriate, the Company has accrued for these matters, which are reflected in the Company's consolidated financial statements. These accruals are subject to statute of limitations requirements and review by governmental authorities.
	Concentration of Credit and Contributor Risk
	At certain times, the Company's cash balances with any one financial institution may exceed Federal Deposit Insurance Corporation insurance limits. The Company believes it mitigates its risk by depositing its cash balances with financial institutions of high quality.
	The Company's customers and contributors are located worldwide. The majority of the Company's customers purchase products by making electronic payments at the time of a transaction. The Company performs ongoing financial condition evaluations for its existing customers and performs credit evaluations for certain new customers. Concentration of credit risk is limited due to the Company's large number of diversified customers. No single customer accounted for or exceeded 10% of revenue for the years ended December 31, 2014, 2013 or 2012, respectively. As of December 31, 2014 and 2013, no single customer accounted for or exceeded 10% of credit card receivables. As of December 31, 2014 and 2013, no single customer accounted for or exceeded 10% of accounts receivable.
	No single contributor accounted for or exceeded 10% of contributor royalties for the years ended December 31, 2014, 2013 and 2012, respectively.
	Fair Value Measurements
	The Company records its financial assets and liabilities at fair value. The accounting standard for fair value provides a framework for measuring fair value, and defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the reporting date. The accounting standard establishes a three-tier hierarchy as follows: Level 1—quoted prices (unadjusted) in active markets for identical assets or liabilities; Level 2—inputs other than quoted prices included within Level 1 that are either directly or indirectly observable; and Level 3—unobservable inputs in which little or no market activity exists, therefore requiring an entity to develop its own assumptions about the assumptions that market participants would use in pricing.
	Cash and Cash Equivalents
	The Company considers all highly liquid securities with original maturities of three months or less when acquired to be cash equivalents. Cash primarily consists of balances in checking, savings and money market accounts, which are recorded at cost and approximate fair value.
	Short-Term Investments
	Short-term investments consist of commercial paper and are classified as available-for-sale securities. As these securities mature in 90 days or less and are available to support current operations, the Company has classified all available-for-sale securities as short-term. Available-for-sale securities are carried at fair value with unrealized gains and losses reported as a component of other accumulated comprehensive (loss)/income in stockholders' equity and in the consolidated statement of comprehensive income, while realized gains and losses, and other-than-temporary impairments, if any, are reported as a component of net income. For the periods presented, realized and unrealized gains and losses on investments were not material. An impairment charge, if any, is recorded in the consolidated statements of operations for declines in fair value below the cost of an individual investment that are deemed to be other than temporary. The Company assesses whether a decline in value is temporary based on the length of time that the fair market value has been below cost, the severity of the decline, as well as the intent and ability to hold, or plans to sell, the investment. We did not identify any of our short-term investments as other-than-temporarily impaired as of December 31, 2014 and 2013.
	Restricted Cash
	The Company's restricted cash relates to security deposits for leased office locations. As of December 31, 2014, the Company had $182 of restricted cash recorded in prepaid expenses and other current assets that relates to a leased office location that expires in the next twelve months and had $1,829 of restricted cash recorded in other assets that relates to a leased office location that expires in 2024. As of December 31, 2013, the Company had $243 of restricted cash recorded in prepaid expenses and other current assets that related to a leased office location that expired in 2014 and had $2,017 of restricted cash recorded in other assets that relates to leased office locations that expire in 2015 and 2024, respectively. The carrying value of restricted cash approximates fair value.
	Credit Card Receivables
	The Company's credit card receivables represent amounts due from third party credit card processors. Such amounts generally convert to cash within three to five days with little or no risk of default.
	Accounts Receivable and Allowance for Doubtful Accounts
	The Company's accounts receivable are customer obligations due under normal trade terms, carried at their face value less an allowance for doubtful accounts if required. The Company determines its allowance for doubtful accounts based on the evaluation of the aging of its accounts receivable and on a customer-by-customer analysis of its high-risk customers. The Company's reserve contemplates its historical loss rate on receivables, specific customer situations and the economic environments in which the Company operates. The following table presents the changes in the Company's allowance for doubtful accounts (in thousands):
			Year Ended December 31,
			2014			2013			2012
	Allowance for doubtful accounts:
	Balance, beginning of period		$	625		$	249		$	256
	Add: bad debt expense			565			519			326
	Less: write-offs, net of recoveries and other adjustments			(159	)		(143	)		(333	)
	Balance, end of period		$	1,031		$	625		$	249
	Deferred Financing Fees
	The Company deferred and amortized certain financing costs related to its term loan facility which was fully paid as of December 31, 2013. These costs were deferred and amortized over the term of the debt period. As of December 31, 2014 and 2013, the deferred financing fees balance was $0. Amortization of deferred financing costs amounted to $0, $125 and $41 for the years ended December 31, 2014, 2013 and 2012.
	Property and Equipment
	Property and equipment are stated at cost, net of accumulated depreciation and amortization. Depreciation and amortization is calculated using the straight-line method over the estimated useful lives of the related assets. The useful lives are as follows:
	Equipment		3 years
	Furniture and fixtures		7 years
	Software		3 years
	Leasehold improvements		Shorter of expected useful life or lease term
	Capitalized Internal Use Software
	The Company accounts for the cost of computer software developed for internal use of its application by capitalizing qualifying costs, which are incurred during the application development stage, and amortizing them over the software's estimated useful life. Costs incurred in the preliminary and post-implementation stages of the Company's products are expensed as incurred. The amounts capitalized include external direct costs of services used in developing internal-use software and payroll and payroll-related costs of employees directly associated with the development activities. The Company amortizes capitalized software over the expected period of benefit, which is currently three years, beginning when the software is ready for its intended use. For the years ended December 31, 2014, 2013 and 2012, the Company had gross capitalized costs of $1,204, $768 and $605, respectively, which is included in property and equipment and amortization expense of $253, $194 and $154, respectively, which is included in general and administrative expense. The Company's policy is to amortize such capitalized costs using the straight-line method over the estimated useful life.
Impairment of Long-Lived Assets
Long-lived assets, inclusive of definite useful life intangible assets, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying value of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying value of an asset to estimated undiscounted future cash flows expected to be generated by the asset. If the carrying value of an asset exceeds its estimated future cash flows, an impairment charge is recognized in the amount by which the carrying value of the asset exceeds the fair value of the asset. Assets to be disposed of would be separately presented in the balance sheet and reported at the lower of the carrying value or the fair value less costs to sell, and are no longer depreciated. The assets and liabilities of a disposed group classified as held for sale would be presented separately in the appropriate asset and liability sections of the balance sheet. There were no impairment charges in 2014, 2013 or 2012.
Goodwill and Intangible Assets
Goodwill and intangible assets acquired in a business combination and determined to have an indefinite useful life are not amortized, but instead tested for impairment at least annually on October 1 of each fiscal year or more frequently if events occur or circumstances exist that indicate that the fair value of a reporting unit may be below its carrying value. Goodwill has been allocated to the Company's reporting units, for the purposes of preparing our impairment analyses, based on a specific identification basis.
Revenue Recognition
The vast majority of the Company's revenue, net of chargebacks and refunds, is generated from the license of digital content through subscription or usage based plans. The Company's three primary plans are: subscription plans, On Demand plans, and credit pack plans. The Company recognizes revenue when all of the following basic criteria are met: there is persuasive evidence of an arrangement, performance or delivery of services has occurred, the sales price is fixed or determinable, and collectability is reasonably assured. The Company considers persuasive evidence of an arrangement to be an electronic order form, or a signed contract, which contains the fixed pricing terms. Performance or delivery is considered to have occurred upon the ratable passage of time for subscription plans, the download of digital content or the expiration of a contract period for which there are unused downloads or credits. Collectability is reasonably assured since most of the Company's customers purchase products by making electronic payments at the time of a transaction with a credit card. The Company establishes a chargeback allowance and sales refund reserve allowance based on factors surrounding historical credit card chargeback trends, historical sales refund trends and other information. As of December 31, 2014 and 2013, the Company has recorded a chargeback allowance and sales refund allowance of $660 and $425, respectively, which is included in other liabilities. Collectability is assessed for customers who pay on credit based on a credit evaluation for certain new customers, when necessary, and transaction history with existing customers. Any cash received in advance of revenue recognition is recorded as deferred revenue.
Subscription plans range in length from thirty days to one year. Subscription plan revenues are recognized on a straight-line basis using a daily convention method over the plan term. On Demand plans are typically for a one-year term and permit the customer to download up to a fixed amount of digital content. On Demand revenues are recognized at the time the customer downloads the digital content on a per unit basis. Revenue related to unused digital content, if any, is recognized in full at the end of the plan term assuming no further Company obligation remains. Credit pack plans are generally for a one-year term and enable the customer to purchase a fixed number of credits which can then be utilized to pay for downloaded digital content. The number of credits utilized for each download depends on the digital content size and format. Credit pack revenue is recognized based on customer usage on a per credit basis as digital content is downloaded. Revenue related to unused credits, if any, is recognized in full at the end of the plan term assuming no further Company obligation remains. Most plans automatically renew at the end of the plan term unless the customer elects not to renew. The Company recognizes revenue from its three types of plans on a gross basis in accordance with the authoritative guidance on principal-agent considerations as the Company is the primary obligor in the arrangement, has control in establishing the product's price, performs a detailed review of the digital content before accepting it to its collection to ensure it is of high quality before it may be purchased by the customers, can reject contributor's images in its sole discretion, and has credit risk.
Customers typically pay in advance (or upon commencement of the term) via credit card, wire or check. Fees paid or invoiced in advance are deferred and recognized as described above. Customers that do not pay in advance are invoiced and are required to make payment under standard credit terms. The Company does not generally offer refunds or the right of return to customers. There are situations in which a customer may receive a refund but the determination is made on a case-by-case basis.
The Company licenses digital content to customers through third party resellers. The Company contracts with third party resellers around the world to access markets where the Company does not have a significant presence. Third party resellers sell the Company's products directly to end-user customers and remit a fixed amount to the Company based on the type of plan sold. The terms of the reseller program indicate that the third party reseller is the primary obligor to the end-user customer and bears the risks and rewards as principal in the transaction. In assessing whether the Company's revenue should be reported on a gross or net basis with respect to our reseller program, the Company follows the authoritative guidance in ASC 605-45, "Principal Agent Considerations." The Company recognizes revenue net of reseller commission in accordance with the type of plan sold, consistent with the plan descriptions above. The Company generally does not offer refunds or the right of return to resellers.
The Company also generates revenue related to WebDAM from licensing its hosted software services through its cloud-based platform and related implementation and professional services. The Company enters into multiple element revenue arrangements in which a customer purchases a combination of hosted software, implementation and optional value added professional services. The Company recognizes revenue for the hosted services monthly provided that there is persuasive evidence of an arrangement, the service has been delivered, the fees are fixed and determinable, and collection is reasonably assured. ASC 605-25 establishes a selling price hierarchy for determining the selling price of a deliverable in multiple-element arrangements, which is based on: (a) vendor-specific objective evidence; (b) third-party evidence; or (c) best estimated selling price. The hosted software services are recognized ratably over the contractual period as this service is on-going over the hosting period which is generally a one-year term. The Company recognizes any setup or implementation revenue ratably over the longer of the contractual term or the estimated customer relationship period which is currently three years. Any value added professional services are recognized upon completion.
Cost of Revenue
The Company's cost of revenue includes contributor royalties, credit card processing fees, content reviewer expenses, hosting and bandwidth expenses, content personnel salaries, non-cash equity-based compensation, amortization of content and technology intangible assets, and depreciation of network equipment, which are the direct costs related to providing content to customers. Additionally, the Company includes an allocation of overhead costs primarily related to payroll, insurance, and facilities expenses based on headcount.
Contributor Royalties and Internal Sales Commissions
The Company expenses contributor royalties in the period during which a customer download occurs and includes the corresponding contributor royalties in cost of revenue. Contributor royalties are generally paid weekly or monthly. The Company advances certain contributor royalties which are initially deferred and expensed based on the contractual royalty rate at the time of customer download or when the Company determines future recovery is not probable. For the years ended December 31, 2014 and 2013, the Company deferred $1,628 and $3,419, respectively, in royalty advances and amortized $3,050 and $510, respectively, in royalty advance expense which is included in cost of revenue. As of December 31, 2014 and 2013, the Company has deferred contributor royalties of $1,997 and $2,908, respectively, which is included in prepaid expenses and other current assets. The Company did not defer any royalty advances and therefore did not amortize any royalty advance expense for the year ended December 31, 2012.
Internal sales commissions are generally paid in the month following collection or invoicing of the commissioned receivable. Internal sales commission expense is included in sales and marketing expense. Internal sales commissions are deferred and recognized over the expected future revenue stream which is generally up to twelve months. For the years ended December 31, 2014, 2013 and 2012, the Company deferred $2,995, $2,005 and $2,023, respectively, and amortized $2,654, $2,086 and $1,649, respectively, in internal sales commission expense which is included in sales and marketing expense. As of December 31, 2014 and 2013, the Company recorded deferred internal sales commission of $784 and $443, respectively, which is included in prepaid expenses and other current assets.
Product Development
The Company expenses product development costs as incurred, except for costs that are capitalized for certain internal software development projects. Product development costs are primarily comprised of development personnel salaries, non-cash equity-based compensation, equipment costs as well as allocated occupancy costs and related overhead. For the years ended December 31, 2014, 2013 and 2012, the Company capitalized $1,038, $163 and $146, respectively, which is included in total capitalized software costs included in property and equipment.
Advertising Costs
The Company expenses the cost of advertising and promoting its products as incurred. Such costs totaled $43,695, $34,090 and $32,648 for the years ended December 31, 2014, 2013 and 2012, respectively, which are included in sales and marketing expense.
Deferred Rent
The Company records rent expense on a straight-line basis over the term of the related lease. The difference between the rent expense recognized and the actual payments made in accordance with the lease agreement is recognized as a deferred rent liability on the Company's balance sheet. As of December 31, 2014, the Company recorded deferred rent of $8,036, of which $693 is included in other liabilities and $7,343 is included in other non-current liabilities. As of December 31, 2013, the Company recorded deferred rent of $4,783, of which $2,406 is included in other liabilities and $2,377 is included in other non-current liabilities.
Equity-Based Compensation
The Company measures and recognizes non-cash equity-based compensation expense for all stock-based awards granted to employees based on estimated fair values. The value portion of the award that is ultimately expected to vest is recognized as expense over the requisite service period. For awards with a change of control condition, an evaluation is made at the grant date and future periods as to the likelihood of the condition being met. Compensation expense is adjusted in future periods for subsequent changes in the expected outcome of the change of control conditions until the vesting date. Forfeitures are estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates. Compensation expense related to awards with a market condition is recognized ratably over the requisite service period regardless of the achievement of the market condition.
The Company uses the Black Scholes option pricing model, the closing price of the Company's common stock on the date of grant, and the Monte Carlo simulation model, if the award has a market condition, to determine the fair value of stock options and restricted stock units ("RSUs"), respectively, granted pursuant to the Value Appreciation Rights Plan ("VAR Plan"), or the 2012 Omnibus Equity Incentive Plan (the "2012 Plan") and stock purchased pursuant to the Employee Stock Purchase Plan ("2012 ESPP"), which are discussed further in Note 10, Equity-Based Compensation.
The determination of the grant date fair value using an option-pricing model and simulation model requires judgment as well as assumptions regarding a number of other complex and subjective variables. These variables include the Company's fair value of the common ownership interest pre-IPO, the Company's closing market price at the grant date post-IPO, the expected unit price volatility over the expected term of the awards, awards' exercise and cancellation behaviors, risk-free interest rates, and expected dividends, which are estimated as follows:
•	Fair Value of Common Stock/Membership Unit.  Prior to completion of the IPO, the Company's fair value of common ownership interest was estimated internally and approved by the Board of Managers ("BOM") because the Company was not publicly traded. The Company's intention upon granting VAR Plan awards was for the granted award to have exercisable price per unit that was not less than the per unit fair value of the Company's common equity on the date of grant. The valuations of the Company's common equity unit were prepared in accordance with the American Institute of Certified Public Accountants Statement on Standards for Valuation Services 1: Valuation of a Business, Business Ownership Interest, Security, or Intangible Asset. The assumptions used in the valuation model were based on future expectations combined with the Company's judgment. In the absence of a public trading market, the Company exercised significant judgment and considered numerous objective and subjective factors to determine the fair value of the common equity unit as of the date of each VAR Plan award grant. Some but not all of these factors included operating and financial performance, current business conditions and projections, the hiring of key personnel, the Company's history and introduction of new functionality and services, the Company's stage of development, the likelihood of achieving a liquidity event for the common ownership interests, any adjustment necessary to recognize a lack of marketability for the common ownership interests, the market performance of comparable publicly traded companies, and U.S. and global capital market conditions. The Company also obtained independent third party valuations on a periodic basis. After October 11, 2012, the date the Company's common stock began trading on the NYSE, the grant date fair value for stock-based awards is based on the closing price of the Company's common stock on the NYSE on the date of grant and fair value for all other purposes related to stock-based awards shall be the closing price of the Company's common stock on the NYSE on the relevant date.
•	Expected Term.  The expected term is estimated using the simplified method allowed under Securities and Exchange Commission ("SEC") guidance. In certain cases for market based awards, the Company's expected term is based on a combination of historical data and estimates of the period of time the award will be outstanding.
•	Volatility.  As the Company did not have a trading history for its common ownership interest pre-IPO or a significant range of its common stock post-IPO, the expected price volatility for the common ownership interest and common stock was estimated by taking the average historic price volatility for industry peers based on daily price observations over a period equivalent to the expected term of the VAR Plan awards and stock options granted post-IPO. Industry peers consisted of several public companies similar in size, stage of life cycle and financial leverage. The Company did not rely on implied volatilities of traded options in the industry peers' common stock because the volume of activity was relatively low. The Company applied this process using the same or similar public companies until the fourth quarter of 2014, at which time the Company determined it had a sufficient amount of historical information regarding the volatility of its own common stock.
•	Risk-free Interest Rate.  The risk-free interest rate is based on the yields of U.S. Treasury securities with maturities similar to the expected term of each award group.
•	Dividend Yield.  Before the Reorganization, the Company historically paid cash dividends or distributions to its members. Following the Reorganization, the Company has not paid cash distributions to its stockholders and it does not intend to do so for the foreseeable future. As a result, the Company used an expected dividend yield of zero.
If any of the assumptions used in the Black-Scholes pricing model or Monte Carlo simulation model changes significantly, the fair value for future awards may differ materially compared with the awards granted previously. The awards granted pursuant to the VAR Plan or the 2012 Plan, and stock purchased pursuant to the 2012 ESPP are subject to a time-based vesting requirement and for certain award grants are also based on a market condition. The majority of stock option awards granted under the 2012 Plan vest over four years while the majority of the restricted stock units granted under the 2012 Plan vest over three years. The 2012 ESPP provides for purchase periods approximately every six months and a participant must be employed on the purchase date to participate. The VAR Plan awards had a condition that a change of control (as defined in the VAR Plan) must occur for a payment to trigger with respect to the VAR Plan awards. In connection with the Company's Reorganization, all of the VAR Plan awards were exchanged for options to purchase shares of common stock of Shutterstock, Inc. As a result of the completion of the IPO in October 2012, the Company began recording equity-based compensation expense using the accelerated attribution method, net of forfeitures, based on the grant date fair value of the VAR Plan awards that were exchanged for options to purchase shares of common stock of Shutterstock, Inc. as part of the Company's Reorganization.
For pre-IPO stock based awards that qualified for liability classification, the Company has elected to use the intrinsic value method to value the common membership interest in accordance with authoritative guidance on stock compensation. See Note 10, Equity-Based Compensation, for further information.
Income Taxes
The Company filed its income tax returns as a limited liability company and was taxed as a "pass through" partnership for federal and state income tax purposes for all periods prior to its Reorganization on October 5, 2012. For all periods prior to the Reorganization, the Company recognized no federal and state income taxes, as the members of the LLC, and not the Company itself, were subject to income tax on their allocated share of the Company's earnings. However, the Company was subject to taxation on allocable portions of its net income or other taxes based on various methodologies employed by taxing authorities in certain localities. The Company generally made monthly dividend distributions to its members under the terms of the LLC's operating agreement, subject to the Company's operating cash needs.
Effective with the Reorganization, the Company became a Delaware corporation, and therefore became subject to federal and state income tax expense beginning October 6, 2012. As a result of this tax status change, the Company recorded an incremental net deferred tax asset and a one-time non-cash tax benefit of approximately $28,811 in the fourth quarter of the fiscal year ended December 31, 2012.
The Company filed tax returns as a partnership for the period from January 1, 2012 through October 5, 2012 and filed tax returns as a corporation for the period from October 6, 2012 through December 31, 2012 and will continue to do so for all periods and any new tax jurisdictions thereafter. Significant management judgment is required in projecting ordinary income in order to determine the Company's estimated effective tax rate.
The Company accounts for unrecognized tax benefits using a more-likely-than-not threshold for financial statement recognition and measurement of tax positions taken or expected to be taken in a tax return. The Company establishes reserves for tax-related uncertainties based on estimates of whether, and the extent to which, additional taxes may be due. The Company records an income tax liability, if any, for the difference between the benefit recognized and measured and the tax position taken or expected to be taken on the Company's tax returns. To the extent that the assessment of such tax positions changes, the change in estimate is recorded in the period in which the determination is made. The reserves are adjusted in light of changing facts and circumstances, such as the outcome of a tax audit or lapses in statutes of limitations. Any reserve for uncertain tax provisions and related penalties and interest, if any, are included in the income tax provision.
The Company assessed the realizability of deferred tax assets and determined that based on the available evidence, including a history of taxable income and estimates of future taxable income, it is more likely than not that the deferred tax assets will be realized. The Company will continue to evaluate its ability to realize deferred tax assets on a quarterly basis. Significant management judgment is required in determining the provision for income taxes and deferred tax assets and liabilities. In the event that actual results differ from these estimates, the Company will adjust these estimates in future periods which may result in a change in the effective tax rate in a future period.
The Company is subject to compliance requirements for certain non-income taxes, including value added taxes, sales taxes and royalty withholding taxes. Where appropriate, the Company has made accruals for these taxes, which are reflected in the Company's consolidated financial statements.
Net Income Per Share
Basic net income per share is computed by dividing the net income attributable to common stockholders by the weighted average number of common shares outstanding during the period. The Company applies the two-class method for calculating and presenting income per share. Under the two-class method, net income is allocated between shares of common stock and other participating securities based on their contractual participating rights to share in the earnings as if all of the earnings for the period have been distributed. Participating securities are defined as securities that participate in dividends with common stock according to a pre-determined formula or a contractual obligation to share in the income of the entity. Any potential issuance of common shares, including those that are contingent and do not participate in dividends, are excluded from weighted average number of common shares outstanding. Undistributed net income (loss) for a given period is apportioned to participating stockholders based on the weighted average number of shares for each class of securities outstanding during the applicable period as a percentage of the combined weighted average number of these securities outstanding during the period. Income available to common stockholders is computed by deducting dividends paid to preferred stockholders, accretion to redemption value on preferred members shares, less income allocated to participating securities including unvested shares for the restricted award holder since these unvested shares have participating rights. See Note 10, Equity-Based Compensation, for further discussion.
Diluted net income per share is computed by dividing the net income available to common shareholders/members adjusted for any changes in income that would result from the assumed conversion of the potential common shares by the weighted average common shares outstanding and all potential common shares, if they are dilutive. Diluted net income available to common shareholders/members for the years ended December 31, 2014, 2013 and 2012 includes the effect of 2,105,898, 1,787,606 and 1,789,318 shares, respectively, while 519,672, 193,040 and 106,500 shares, respectively, were excluded since they were anti-dilutive.
A reconciliation of assumed exercised shares used in calculating basic and diluted net income share available to common shareholders/members follows:
		Year Ended December 31,
		2014			2013			2012
Basic			35,234,768			33,878,494			23,785,299
Stock options and employee stock purchase plan shares			585,755			508,935			47,924
Unvested restricted stock awards			92,638			38,580			—
Diluted			35,913,161			34,426,009			23,833,223
Segment Reporting
For the year ended December 31, 2014, the Company has identified four operating segments and has aggregated them into one primary reportable business segment based on the aggregation criteria within the authoritative guidance on segment reporting. The Company considered the similarity of the product sold, the distribution processes involved, targeted customers and economic characteristics among the operating segments in its aggregation criteria evaluation. Operating segments are defined as components of an enterprise for which separate financial information is available and is evaluated regularly by the Company's chief operating decision maker ("CODM"), or decision-making group, in deciding how to allocate resources and in assessing performance. The non-reportable segments classified in the Other Category include several business units, none of which meet the quantitative thresholds for separate segment reporting. The Other Category group currently includes the Company's digital asset management and on-line learning video business units. The non-allocated corporate expenses primarily relate to shared operational support function such as sales, marketing, public relations, product development and engineering support, in addition to the general and administrative functions of human resources, legal, finance and information technology.
The following table summarizes segment information for the year ended December 31, 2014:
		Content Business			Other Category			Total
Revenue		$	324,533		$	3,438		$	327,971
Operating expenses			172,026			7,675			179,701
Operating profit (loss)		$	152,507		$	(4,237	)		148,270
Unallocated corporate expenses									109,627
Income from operations								$	38,643
Asset information on a segment basis is not disclosed as this information is not separately identified or internally report to the Company's CODM.
Prior to the year ended December 31, 2014, the Company had identified three operating segments and aggregated them into one reportable segment based on the aggregation criteria within the authoritative guidance on segment reporting. There was no segment classified as Other Category as these business units were not yet in existence or were inconsequential.
The following represents our geographic revenue based on customer location:
		Year Ended December 31,
		2014			2013			2012
North America		$	121,896		$	84,754		$	59,963
Europe			115,245			84,644			62,943
Rest of the world			90,830			66,117			46,710
Total revenue		$	327,971		$	235,515		$	169,616
Included in North America is the United States which comprises 33%, 32%, and 32% of total revenue for years ended December 31, 2014, 2013, and 2012, respectively. No other country accounts for more than 10% of the Company's revenue in any period. All long-lived assets are located in North America.
Foreign Currency Transactions
During the year ended December 31, 2013, the Company established foreign subsidiaries in various countries around the world and as a result the financial statements of these foreign subsidiaries are reported in the applicable foreign currencies (functional currencies). Financial information is translated from the applicable functional currency to the U.S. Dollar (the reporting currency) for inclusion in the Company's consolidated financial statements. Income, expenses and cash flows are translated at average exchange rates prevailing during the fiscal period, and assets and liabilities are translated at fiscal period-end exchange rates. Resulting translation adjustments are included as a component of other accumulated comprehensive (loss)/income in stockholders' equity. During the year ended December 31, 2012, the Company had determined that the U.S. Dollar was its functional currency worldwide and therefore did not have any foreign currency translation adjustment. Transaction gains and losses related to cash balances denominated in a currency other than the functional currency of the foreign subsidiary are included in other (expense) income, net. During the years ended December 31, 2014, 2013 and 2012, the Company's foreign currency transaction activity was immaterial to the financial statements.
Comprehensive (Loss)/Income
Comprehensive (loss)/income includes certain changes in stockholders' equity that are excluded from net income (loss) such as foreign currency translation adjustments and unrealized gains or losses on marketable securities. As of December 31, 2014 and 2013, other comprehensive (loss) income of $(638) and $9 was comprised of foreign currency translation (loss) gain in the amount of $(670) and $3 and unrealized gain on investments in the amount of $32 and $6, respectively. As of December 31, 2012, the Company had no other comprehensive income.
Recently Issued Accounting Standard Updates
In May 2014, the Financial Accounting Standards Board ("FASB") issued new accounting guidance related to revenue recognition. This new standard will replace all current GAAP guidance on this topic and will eliminate all industry-specific guidance. The new revenue recognition standard provides a unified model 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 for which the entity expects to be entitled in exchange for those goods or services. This guidance will be effective beginning January 1, 2017 and can be applied either retrospectively to each period presented or as a cumulative-effect adjustment as of the date of adoption. The Company is evaluating the impact, if any, of adopting this new accounting standard on its financial statements.
In June 2014, the FASB issued new guidance related to stock compensation. The new standard requires that a performance target that affects vesting, and that could be achieved after the requisite service period, be treated as a performance condition. As such, the performance target should not be reflected in estimating the grant date fair value of the award. This update further clarifies that compensation cost should be recognized in the period in which it becomes probable that the performance target will be achieved and should represent the compensation cost attributable to the periods for which the requisite service has already been rendered. The new standard is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015 and can be applied either prospectively or retrospectively to all awards outstanding as of the beginning of the earliest annual period presented as an adjustment to opening retained earnings. Early adoption is permitted. The Company is evaluating the impact, if any, of adopting this new accounting standard on its financial statements.

ShortTerm_Investments_and_Fair

Short-Term Investments and Fair Value Measurements	12 Months Ended
	Dec. 31, 2014
Short-Term Investments and Fair Value Measurements
Short-Term Investments and Fair Value Measurements	(2) Short-Term Investments and Fair Value Measurements
	Short-term investments are summarized as follows:
		As of December 31, 2014
		Amortized		Unrealized		Unrealized			Estimated
		Cost		Gains		Losses			Fair Market
									Value
	Commercial paper	$	54,848	$	—	$	(4	)	$	54,844
	Total	$	54,848	$	—	$	(4	)	$	54,844
		As of December 31, 2013
		Amortized		Unrealized		Unrealized			Estimated
		Cost		Gains		Losses			Fair Market
									Value
	Commercial paper	$	54,431	$	—	$	(2	)	$	54,429
	Total	$	54,431	$	—	$	(2	)	$	54,429
	The following tables present the Company's fair value hierarchy for its assets and liabilities:
		As of December 31, 2014
		Aggregate		Level 1		Level 2			Level 3
		Fair Value
	Assets:
	Money market accounts	$	81,244	$	81,244	$	—		$	—
	Commercial paper		54,844		—		54,844			—
	Total assets measured at fair value	$	136,088	$	81,244	$	54,844		$	—
	Liabilities:
	Acquisition related contingent consideration	$	2,560	$	—	$	—		$	2,560
	Total liabilities measured at fair value	$	2,560	$	—	$	—		$	2,560
		As of December 31, 2013
		Aggregate		Level 1		Level 2			Level 3
		Fair Value
	Assets:
	Money market accounts	$	81,548	$	81,548	$	—		$	—
	Commercial paper		54,429		—		54,429			—
	Total assets measured at fair value	$	135,977	$	81,548	$	54,429		$	—
	The Company's investments classified as level 2 are priced using quoted market prices for identical assets which are subject to infrequent transactions. Cash equivalents consist of balances in money market accounts which are classified as a level 1 measurement based on bank reporting. The Company reassesses the fair value of contingent consideration to be settled in cash related to the WebDAM acquisition on a quarterly basis using the Monte-Carlo simulation approach. This contingency is considered a level 3 measurement. Significant assumptions used in the measuring the fair value include probabilities of achieving certain revenue milestones based on the Company's expectations, and a discount rate which is based on unobservable input that is supported by little or no market activity. As a result of a shorter discounting period and a change in the time value of money, the Company recorded a change in the fair value of the contingent consideration in the amount of $200 during the year ended December 31, 2014, which is included in other (expense) income, net. As of December 31, 2014, the fair value of the contingent consideration is $2,560 based on its current fair value and is included in other non-current liabilities.
	Cash, accounts receivable, restricted cash, accounts payable, accrued expenses and deferred revenue carrying amounts approximate fair value because of the short-term maturity of these instruments. The Company's non-financial assets, which include property and equipment, intangible assets and goodwill, are not required to be measured at fair value on a recurring basis. However, if certain triggering events occur, or if an annual impairment test is required and the Company is required to evaluate the non-financial asset for impairment, a resulting asset impairment would require that the non-financial asset be recorded at the fair value.

Goodwill_and_Intangible_Assets

Goodwill and Intangible Assets	12 Months Ended
	Dec. 31, 2014
Goodwill and Intangible Assets
Goodwill and Intangible Assets	(3) Goodwill and Intangible Assets
	The Company's goodwill balance is attributable to its Bigstockphoto, Inc. ("Bigstock") and WebDAM reporting units and is tested for impairment at least annually on October 1 or upon a triggering event. Bigstock is included in the Company's Content Business reporting segment while WebDAM is included in the non-reportable Other Category. The following table summarizes the changes in the Company's goodwill balance by reporting and non-reportable segments through December 31, 2014:
		Content		Other			Consolidated
		Business		Category
	Balance as of December 31, 2013	$	1,423	$	—		$	1,423
	Goodwill related to acquisition		—		8,763			8,763
	Balance as of December 31, 2014	$	1,423	$	8,763		$	10,186
	Intangible assets consist of the following as of December 31, 2014 and 2013:
		As of December 31, 2014
		Gross		Accumulated			Net		Weighted
		Carrying		Amortization			Carrying		Average Life
		Amount					Amount		(Years)
	Amortizing intangible assets:
	Customer relationships	$	3,400	$	(921	)	$	2,479		6
	Trade name		900		(230	)		670		9
	Technology		600		(68	)		532		7
	Contributor content(1)		450		(159	)		291		15
	Patents		193		(30	)		163		17
	Domain name		97		(19	)		78		14
	Total	$	5,640	$	(1,427	)	$	4,213
	-1	During the year ended December 31, 2014, the Company acquired certain non-exclusive licensing rights to distribute certain digital content in perpetuity in the amount of $721. The Company has not yet placed the digital content into service and therefore this content is excluded from the table.
		As of December 31, 2013
		Gross		Accumulated			Net		Weighted
		Carrying		Amortization			Carrying		Average Life
		Amount					Amount		(Years)
	Amortizing intangible assets:
	Customer relationships	$	600	$	(600	)	$	—		4
	Trade name		400		(119	)		281		14
	Contributor content		450		(127	)		323		15
	Domain name		86		(9	)		77		15
	Patents		193		(21	)		172		17
	Total	$	1,729	$	(876	)	$	853
	Amortization expense related to the intangible assets was $551, $187 and $243 for the years ended December 31, 2014, 2013 and 2012, respectively. The Company also determined that there was no indication of impairment for the intangible assets for all periods presented. Estimated amortization expense for the next five years is: $665 in 2015 through 2018, $583 in 2019 and $970 thereafter.
	The Company performed its annual goodwill assessment on October 1, 2014 and concluded that the fair value of its reporting units were greater than their carrying amounts, and therefore no adjustment to the carrying value of goodwill was necessary. The Company employed a qualitative assessment on its Bigstock reporting unit to determine whether a quantitative assessment was necessary and determined there were no indicators of potential impairment. For its WebDAM reporting unit, the Company performed a quantitative assessment utilizing the income and market approach. The WebDAM assessment concluded that its fair value was in excess of its carrying value. The key assumption that impacts the quantitative assessment is the expected future cash flows. The Company's discounted cash flow analysis factors in assumptions on revenue and expense growth rates. These estimates are based on the Company's historical experience and projections of future activity, factoring in customer demand and a cost structure necessary to achieve related revenue. Additionally, the discounted cash flow analysis factors in expected amounts of working capital and weighted cost of capital. Changes to the Company's critical assumptions could have an effect on the estimated fair value of the WebDAM reporting unit. A hypothetical decrease of 10% in the expected annual cash flows, with all other assumptions unchanged, would have decreased the fair value of the WebDAM reporting unit by approximately 7%, but would not have resulted in the fair value being lower than the carrying amount. There were no impairments of goodwill in any of the periods presented in the consolidated financial statements.

Property_and_Equipment

Property and Equipment	12 Months Ended
	Dec. 31, 2014
Property and Equipment
Property and Equipment	(4) Property and Equipment
	Property and equipment is summarized as follows:
		December 31,
		2014			2013
	Computer equipment and software	$	24,179		$	14,108
	Furniture and fixtures		2,336			2,588
	Leasehold improvements		13,954			10,669
	Property and equipment		40,469			27,365
	Less: accumulated depreciation		(13,725	)		(7,109	)
	Property and equipment, net	$	26,744		$	20,256
	Depreciation and amortization expense amounted to $7,366, $3,683 and $2,397, for the years ended December 31, 2014, 2013 and 2012, respectively. Depreciation and amortization expense is included in cost of revenue and general and administrative expense based on the nature of the asset. In connection with its move to its new headquarters, the Company recorded a loss on disposal of certain fixed assets in the amount of $367 for the year ended December 31, 2014. There was no loss on disposal for the years ended December 31, 2013 and 2012.

Accrued_Expenses

Accrued Expenses	12 Months Ended
	Dec. 31, 2014
Accrued Expenses
Accrued Expenses	(5) Accrued Expenses
	Accrued expenses consisted of the following:
		December 31,
		2014		2013
	Compensation	$	8,312	$	6,379
	Royalty tax withholdings		5,987		5,305
	Non-income taxes		4,670		3,994
	Professional fees		1,708		605
	Marketing expenses		794		475
	Construction costs		98		4,501
	Other expenses		3,504		2,379
	Total accrued expenses	$	25,073	$	23,638

Income_Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2014
Income Taxes
Income Taxes	(6) Income Taxes
	The Company's geographical breakdown of its income before income taxes is as follows:
		Year Ended December 31,
		2014			2013			2012
	Domestic	$	37,866		$	43,375		$	21,805
	Foreign		311			—			—
	Income before income taxes	$	38,177		$	43,375		$	21,805
	The following table summarizes the consolidated provision (benefit) for income taxes:
		Year Ended December 31,
		2014			2013			2012
	Current:
	Federal provision	$	19,362		$	949		$	4,329
	State & local provision		1,502			98			1,233
	Foreign provision		121			—			—
	Deferred:
	Federal provision (benefit)		(5,406	)		14,885			(29,772	)
	State & local provision (benefit)		509			964			(1,528	)
	Foreign provision (benefit)		—			—			—
	Provision (benefit) for income taxes	$	16,088		$	16,896		$	(25,738	)
	The provision (benefit) for income taxes differs from statutory income tax rate as follows:
		Year Ended December 31,
		2014			2013			2012
	US income tax at federal statutory rate		35.0	%		35.0	%		35.0	%
	State and local taxes, net of federal benefit		4.2	%		2.3	%		2.8	%
	Foreign rate differential		(0.1	)%		—	%		—	%
	Benefit from change in tax status		—	%		—	%		(131.8	)%
	LLC income not subject to federal and state tax		—	%		—	%		(31.4	)%
	Non-deductible—restricted stock		1.9	%		1.3	%		7.3	%
	Non-deductible—other		1.0	%		0.4	%		0.3	%
	Total provision (benefit) for income taxes		42.00	%		39.00	%		(117.8	)%
	Effective with the Reorganization, the Company became a Delaware corporation, and therefore became subject to federal and state tax expense beginning October 6, 2012. As a result of this tax status change, the Company recorded an incremental net deferred tax asset and a one-time non-cash tax benefit of approximately $28,811.
	The tax effect of the Company's temporary differences and tax carryforwards that give rise to significant portions of the deferred tax assets are presented below:
		Year Ended
		December 31,
		2014			2013
	Deferred tax assets:
	Intangible amortization	$	11,283		$	13,235
	Non-cash equity-based compensation		8,284			2,159
	Deferred rent		2,918			1,784
	Non-income tax reserve		2,679			2,376
	Other liabilities		2,056			932
	Deferred tax assets		27,220			20,486
	Deferred tax liabilities:
	Depreciation and amortization		(5,346	)		(4,335	)
	Net deferred tax assets	$	21,874		$	16,151
	It is the Company's practice and intention to indefinitely reinvest the earnings of its foreign subsidiaries in those operations. As of December 31, 2014, the excess of the amount for financial reporting over the tax basis of investment in these foreign subsidiaries is immaterial and the unrecognized deferred tax liability is not material.
	The following table summarizes changes to the Company's unrecognized tax benefits as follows:
		Year Ended December 31,
		2014			2013			2012
	Balance of unrecognized tax benefits at January 1	$	1,500		$	805		$	60
	Gross additions for tax positions for prior years		—			8			18
	Gross additions for tax positions for current year		—			1,056			727
	Gross reductions for tax positions of prior years		—			(369	)		—
	Gross expirations		—			—			—
	Gross settlements		—			—			—
	Balance of unrecognized tax benefits at December 31	$	1,500		$	1,500		$	805
	During the years ended December 31, 2014, 2013 and 2012, the Company recorded reserves for uncertain tax benefits in the amount of $0, $1,064 and $745, respectively, a portion of which relates to tax refund claims. To the extent these unrecognized tax benefits are ultimately recognized, the Company's effective tax rate may be impacted in future periods in the amount of $1,327. The liability for unrecognized tax benefits is included in other non-current liabilities. The Company is currently under routine examination by the Internal Revenue Service for the tax period beginning October 6, 2012 and ending December 31, 2012. The Company is no longer subject to US federal or state and local tax examinations by tax authorities for years before 2009. The Company does not anticipate significant changes to its uncertain tax positions through the next fiscal year.
	The Company recognizes interest expense and tax penalties related to unrecognized tax benefits in income tax expense in the consolidated statements of operations. The Company accrued interest and penalties in the amount of $54 and $113 related to unrecognized tax benefits for the years ended December 31, 2014 and 2013, respectively. The Company did not accrue any interest or penalties related to unrecognized tax benefits for the year ended December 31, 2012.
	The Company filed Form 3115, Application for Change in Method of Accounting , with the Internal Revenue Service ("IRS") during the third quarter of 2013, to change its tax accounting method for revenue from a cash basis to accrual basis for years beginning after December 31, 2012. As a result, the Company deferred revenue on its 2013 and will continue to do so on subsequent tax returns until performance or delivery thereby deferring taxable income. In general, the Company will eventually pay taxes with respect to the deferred revenue when the related revenue is performed or delivered in the future. While the change did not impact the provision for income tax, it resulted in a reclassification of approximately $17,300 between current deferred tax assets and prepaid expenses and other current assets in the third quarter period of 2013.

Term_Loan_Facility

Term Loan Facility	12 Months Ended
	Dec. 31, 2014
Term Loan Facility
Term Loan Facility	(7) Term Loan Facility
	On September 21, 2012, the Company entered into a Loan and Security Agreement that provided for a $12,000 term loan facility, which the Company refers to as the term loan facility. On December 24, 2012, the Company paid down $6,000 of the term loan facility. On March 25, 2013, the Company paid off the remaining $6,000 of the loan facility.
	The Company capitalizes costs directly associated with acquiring third party financing. During the year ended December 31, 2013, the Company accelerated and recognized $125 as a result of paying off the term loan facility. There was no amortization of deferred financing cost for the year ended December 31, 2014.
	The Company was in compliance with the financial covenants and other covenants applicable to it under the term loan facility prior to paying off the term loan facility on March 25, 2013.

Commitments_and_Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2014
Commitments and Contingencies.
Commitments and Contingencies	(8) Commitments and Contingencies
	The Company leases facilities under agreements accounted for as operating leases. Rental expense for operating leases for the years ended December 31, 2014, 2013 and 2012 was approximately $4,198, $2,997 and $1,799, respectively. Some leases have defined escalating rent provisions, which are expensed over the term of the related lease on a straight-line basis commencing with the date of possession. Any rent allowance or abatement is netted in this calculation. All leases require payment of real estate taxes and operating expense increases.
	On March 21, 2013, the Company entered into an operating lease agreement to lease its new office facility in New York, New York. The Company took possession of the premises during the third quarter of 2013, and as a result, the lease commenced. The Company also entered into a letter of credit in the amount of $1,829 as a security deposit for the leased facilities. The letter of credit was collateralized by $1,829 of cash and as such, is deemed to be restricted cash and is included in other assets on the consolidated balance sheet as of December 31, 2014 and 2013. The lease term is eleven years from the commencement date and aggregate future minimum lease payments are approximately $37,700.
	Future minimum lease payments under non-cancelable operating leases (with initial or remaining lease terms in excess of one year) as of December 31, 2014 are as follows:
	Year Ending December 31	Operating
		Leases
	2015	$	4,884
	2016		4,345
	2017		3,977
	2018		3,924
	2019		4,062
	Thereafter		19,170
	Total minimum lease payments	$	40,362
	Capital Expenditures
	As of December 31, 2014, the Company had committed to purchase approximately $1,400 of data server equipment related to expansion of the existing business.
	Unconditional Purchase Obligations
	As of December 31, 2014, the Company had unconditional purchase obligations in the amount of approximately $9,400, which consisted primarily of contracts related to infrastructure services and contractual commitments for software licenses and marketing services. As of December 31, 2014, the Company's unconditional purchase obligations for the years ending December 31, 2015, 2016 and 2017 are approximately $5,800, $3,200 and $400, respectively.
	Legal Matters
	From time to time, the Company may become party to litigation in the ordinary course of business, including direct claims brought by or against the Company with respect to intellectual property, contracts, employment and other matters, as well as claims brought against the Company's customers for whom the Company has a contractual indemnification obligation. The Company assesses the likelihood of any adverse judgments or outcomes with respect to these matters and determines loss contingency assessments on a gross basis after assessing the probability of incurrence of a loss and whether a loss is reasonably estimable. In addition, the Company considers other relevant factors that could impact its ability to reasonably estimate a loss. A determination of the amount of reserves required, if any, for these contingencies is made after analyzing each matter. The Company reviews reserves, if any, at least quarterly and may change the amount of any such reserve in the future due to new developments or changes in strategy in handling these matters. Although the results of litigation and threats of litigation, investigations and claims cannot be predicted with certainty, the Company currently believes that the final outcome of these matters will not have a material adverse effect on its business, consolidated financial position, results of operations, or cash flows. Regardless of the outcome, litigation can have an adverse impact on the Company because of defense and settlement costs, diversion of management resources and other factors. The Company currently has no material active litigation matters and, as such, no material reserves related to litigation.
	Indemnifications
	In the ordinary course of business, the Company enters into contractual arrangements under which it agrees to provide indemnification of varying scope and terms to customers with respect to certain matters, including, but not limited to, losses arising out of the breach of Company's intellectual property warranties for damages to the customer directly attributable to the Company's breach. The Company is not responsible for any damages, costs, or losses to the extent such damages, costs or losses arise as a result of the modifications made by the customer, or the context in which an image is used. The standard maximum aggregate obligation and liability to any one customer for all claims is generally limited to $10. The Company offers certain of its customers greater levels of indemnification, including unlimited indemnification. As of December 31, 2014, the Company has recorded no liabilities related to indemnification obligations in accordance with the authoritative guidance for loss contingencies. Additionally, the Company believes that it has the appropriate insurance coverage in place to adequately cover such indemnification obligations, if necessary.
	Employment Agreements and Indemnification Agreements
	The Company has entered into employment arrangements and indemnification agreements with certain executive officers and with certain employees. The agreements specify various employment-related matters, including annual compensation, performance incentive bonuses, and severance benefits in the event of termination with or without cause.

Employee_Benefit_Plans

Employee Benefit Plans	12 Months Ended
	Dec. 31, 2014
Employee Benefit Plans
Employee Benefit Plans	(9) Employee Benefit Plans
	The Company has a 401(k) defined contribution plan ("401(k) Plan") and provides for annual discretionary employer matching contributions not to exceed 3% of employees' compensation per year. Matching contributions are fully vested and non-forfeitable at all times.
	The Company recorded employer matching contributions of $932, $615 and $412 for the years ended December 31, 2014, 2013 and 2012, respectively.

EquityBased_Compensation

Equity-Based Compensation	12 Months Ended
	Dec. 31, 2014
Equity-Based Compensation
Equity-Based Compensation	(10) Equity-Based Compensation
	2012 Omnibus Equity Incentive Plan
	On October 10, 2012, the Company's 2012 Plan became effective. The 2012 Plan provides for the grant of incentive stock options to Company employees, and for the grant of non-statutory stock options, stock appreciation rights, restricted stock, restricted stock units, performance units and performance shares to employees, directors and consultants. The maximum aggregate number of shares that may be issued under the 2012 Plan is 6,750,000 shares of common stock. The number of shares available for issuance under the 2012 Plan will be increased annually commencing January 1, 2013 by an amount equal to the lesser of 1,500,000 shares of common stock, 3% of the outstanding shares of common stock as of the last day of the immediately preceding fiscal year, or such other amount as determined by the Company's board of directors. Any awards issued under the 2012 Plan that are forfeited by the participant, will become available for future grant under the 2012 Plan. In connection with the Company's reorganization to a corporation, the VAR Plan awards were exchanged for options to purchase shares of common stock of Shutterstock, Inc. granted pursuant to the Company's 2012 Plan. The number of shares of common stock available under the 2012 Plan was automatically increased by 1,052,129 shares on January 1, 2014, pursuant to the automatic increase provisions of the 2012 Plan.
	Employee Stock Purchase Plan
	On October 10, 2012, the Company's 2012 ESPP became effective. The 2012 ESPP provides participating employees with the option to purchase common stock through payroll deductions of up to 15% of eligible compensation and a maximum purchase of 1,000 shares during each offering period. The common stock is purchased at 85% of the lower of the fair market value of common stock on (1) the first trading day of the offering period, or (2) the last day of the offering period. The offering periods generally start on the first trading day on or after June 1 and December 1 of each year; however, the first such offering period commenced on October 10, 2012, the date the Company's Registration Statement was declared effective. An employee will not be granted rights to purchase common stock if an employee immediately after the grant would own stock possessing 5% or more of the total combined voting power or value of all classes of the Company's capital stock or holds rights to purchase stock under all of the Company's employee stock purchase plans that would accrue at a rate that exceeds $25 worth of stock for each calendar year. The Company has reserved 2,000,000 shares for issuance under the 2012 ESPP. The number of shares available for issuance under the 2012 ESPP provides for an annual increase commencing January 1, 2013 by an amount equal to the lesser of 1,000,000 shares of common stock, 3% of the outstanding shares of our common stock as of the last day of the immediately preceding fiscal year, or such other amount as determined by the Company's board of directors. As of December 31, 2014, 133,289 shares have been issued under the 2012 ESPP. The number of shares of common stock available under the 2012 ESPP was automatically increased by 1,000,000 shares on January 1, 2014, pursuant to the automatic increase provisions of the 2012 ESPP.
	The Company estimates the fair value of purchase rights under the 2012 ESPP using the Black-Scholes valuation model. The fair value of each purchase right under the 2012 ESPP was estimated on the date of grant using the Black-Scholes option valuation model and the straight-line attribution approach with the following weighted-average assumptions:
		Year Ended		Year Ended		Period from
		December 31,		December 31,		October 10,
		2014		2013		2012 to
						December 31, 2012
	Expected term (in years)	0.5		0.5			0.64
	Volatility	49% - 52%		49% - 50%			49	%
	Risk-free interest rate	0.08% - 0.60%		0.08% - 0.10%			0.15	%
	Dividend yield	—%		—%			—	%
	The Company has recognized a non-cash equity-based compensation expense of $778, $588 and $134, net of estimated forfeitures, in connection with the 2012 ESPP for the years ended December 31, 2014, 2013 and 2012, respectively.
	Stock Option Awards and Value Appreciation Rights Plan
	Between June 7, 2007 and October 5, 2012, the Company was organized as a limited liability company. Beginning in 2011, the Company granted equity rights similar to options under its VAR Plan in the form of value appreciation rights. Each VAR Plan award had an exercise price, a vesting period and an expiration date, in addition to other terms and conditions similar to typical equity option grant terms and conditions. For the convenience of communicating the issuance of VAR Plan awards to employees, the BOM designated a total of 3,000,000 notional units for the VAR Plan to represent 10% of the Company's overall interest. The VAR Plan awards were subject to a time-based vesting requirement and a condition that a change of control occur for a payment to trigger with respect to the VAR Plan awards. Payment could occur in the form of cash, units or other securities at the discretion of the BOM and are equal to the appreciation in value over the participant's grant date price. The determination of the type of payment was subject to the discretion of the Company and not the holder. Additionally, the Company has never settled any VAR units with cash. As a result, the VAR units were accounted for as equity awards. In connection with the Reorganization, all of the VAR Plan awards were exchanged for options to purchase an aggregate of 1,661,719 shares of common stock of Shutterstock, Inc. with only a time-based vesting requirement, which were granted pursuant to the Company's 2012 Plan.
	The Company's VAR Plan awards were made in the form of notional units and were exchanged for options to purchase shares of common stock of Shutterstock, Inc. upon the Reorganization. The following is a summary of these awards and weighted average exercise price per option:
		Plan			Weighted Average
		Options			Exercise Price
	Options outstanding at December 31, 2012		1,692,282		$	16.11
	Options granted		552,850			49.97
	Options exercised		(312,807	)		15.3
	Options cancelled or expired		(70,564	)		22.29
	Options outstanding at December 31, 2013		1,861,761		$	26.09
	Options granted		563,583			72.33
	Options exercised		(485,196	)		20.05
	Options cancelled or expired		(168,708	)		35.35
	Options outstanding at December 31, 2014		1,771,440		$	41.61
	Options exercisable at December 31, 2014		631,484		$	21.83
	Options vested and expected to vest at December 31, 2014		1,729,739		$	41.58
	The intrinsic value of the total stock options outstanding at December 31, 2014, 2013 and 2012 was approximately $48,700, $107,100, and $16,700, respectively. The intrinsic value of the total stock options exercisable at December 31, 2014, 2013 and 2012 was approximately $29,800, $38,900 and $4,600, respectively. The intrinsic value of the total stock options vested and expected to vest at December 31, 2014, 2013 and 2012 was approximately $50,600, $102,300 and $15,800, respectively. The intrinsic value of stock options exercised for the years ended December 31, 2014 and 2013 was approximately $30,500 and $12,400, respectively. There were no stock options exercised for the year ended December 31, 2012.
	The following weighted average assumptions were used in the fair value calculation for the years ended December 31, 2014, 2013 and 2012:
		Year Ended		Year Ended		Year Ended
		December 31,		December 31,		December 31,
		2014		2013		2012
	Expected term (in years)	6.3		6.3		5.2 - 6.3
	Volatility	49%		50%		49%
	Risk-free interest rate	2.1% - 2.8%		1.0% - 2.3%		1.0% - 1.6%
	Dividend yield	—%		—%		—%
	Valuation Data:
	Weighted average fair value per share granted	$43.19		$24.73		$8.72
	On April 24, 2014, the Company granted 500,000 stock options with a market-based condition to its Chief Executive Officer ("CEO"). The stock options have an exercise price of $80.94 per share and will not vest or become exercisable unless (i) the CEO remains continuously employed by the Company until the fifth anniversary of the date of grant and (ii) the average 90-day closing price of the Company's common stock equals or exceeds $161.88 for any 90 consecutive calendar days during the period commencing on the fifth anniversary of the date of grant and ending on the tenth anniversary of the date of grant, inclusive provided that the CEO remains continuously employed by the Company until the date of satisfaction of such condition. The derived requisite service period was determined to be six years based on a valuation technique. The total fair value of the grant is $21,630 and is being recognized over the derived requisite service period. In the event that the market condition remains unsatisfied upon completion of the requisite service period, no charge will be reversed.
	Following the Reorganization, the VAR Plan awards were exchanged for options to purchase shares of the Company's common stock having the same time-based vesting schedules, which range from one to six years. The VAR Plan awards that were granted and outstanding as of the Reorganization date were exchanged for options to purchase an aggregate of 1,661,719 shares of common stock of Shutterstock, Inc. The Company recognized non-cash equity-based compensation expense of $9,737 and $4,507, net of forfeitures, in connection with the vesting of stock options during the years ended December 31, 2014 and 2013, respectively. As a result of the Reorganization, the Company recognized a non-cash equity-based compensation expense of $2,412, net of estimated forfeitures, in connection with a one-time acceleration charge as a result of the removal of the change of control condition during the year ended December 31, 2012. Since the Reorganization through December 31, 2012, the Company has also recognized a non-cash equity-based compensation expense of $618, net of estimated forfeitures, in connection with the normal service vesting of stock options.
	As of December 31, 2014, the total unrecognized compensation charge related to 2012 Plan non-vested options is approximately $29,100, which is expected to be recognized through fiscal year 2020.
	Profits Interest Awards
	On November 1, 2007, the Company entered into a Profits Interest Grant and Repurchase Agreement (a "Profits Interest Agreement") with an employee of the Company whereby the employee received a 0.4% membership interest in the Company in consideration of future services to be rendered over a forty-eight month period starting on January 1, 2008. The Profits Interest Agreement terms stipulated that the executive would have no rights to allocations or distributions relating to the Company's operating profits. Only upon a Liquidation of the Company, as defined in the Company's operating agreement, would the executive be entitled to operating profits of the Company. In connection with the Reorganization, this membership interest in the LLC was exchanged for shares of the Company's stock, which do not contain a liquidation condition. The award was determined to meet the characteristics of a stock-based award and was measured at fair value on the grant date. Based on the evaluation of the change of control condition in effect on the grant date and through each subsequent reporting period as to the probability that the change of control condition will be achieved, the Company did not record a compensation charge for this award during the year ended December 31, 2011. Upon consummation of the Reorganization and in connection with the removal of the change of control condition from the Profits Interest Agreement entered with the Company employee, the award was considered vested and the Company recognized a non-cash equity-based compensation expense of $509, which is included in general and administrative expense, during the year ended December 31, 2012. There is no recognized compensation charge during the years ended December 31, 2014 and 2013, and no unrecognized compensation charge at December 31, 2014 related to this award.
	Restricted Stock and Restricted Stock Units Awards
	On August 17, 2010, the Company entered into a Profits Interest Agreement with an executive whereby the Company issued a membership interest in the Company in consideration of future services to be rendered. The Profits Interest Agreement terms stipulated that the executive would have no rights to allocations or distributions relating to the Company's operating profits. Only upon a Liquidation of the Company, as defined in the Company's operating agreement, would the executive be entitled to operating profits of the Company. In connection with the Reorganization, this membership interest in the LLC was exchanged for restricted and unrestricted shares of the Company's stock, which did not contain a liquidation condition. The Profits Interest Agreement was effective as of April 5, 2010 and entitled the executive to an aggregate amount of 4% of any liquidation of the Company's in excess of $300,000. The Profits Interest Grant was to vest over a six year period. The Profits Interest Agreement also contained a put feature whereby the executive had the option to put back to the Company up to 10% annually of any vested portion of the membership interest at the fair value on the date the executive would sell the vested interest back to the Company. Since the put feature did not subject the executive to the typical risks of stock ownership, the membership interest was classified as a liability and recorded utilizing the intrinsic method. The Company's process for determining the fair value of the awards included consideration of third party valuation reports and the fair value determined served as the basis for calculating the compensation charge. The Company recorded a compensation charge of $2,827, which is included in general and administrative expense, during the year ended December 31, 2012. There was no non-cash equity-based compensation expense related to the Profit Interest Award during the years ended December 31, 2014 and 2013. This liability was re-measured each reporting period until a liquidation occurred. Upon consummation of the Reorganization, the vested portion of the profits interest was exchanged for shares of common stock of Shutterstock, Inc. and the liability in the amount of $5,147 was re-classed to equity. The unvested portion was exchanged for shares of restricted stock having the same vesting terms as the profits interest. An Amended and Restated Restricted Stock Agreement entered into by the Company with the executive governs the terms of the restricted stock received in exchange for the unvested portion of the profits interest. Pursuant to the terms of the Amended and Restated Restricted Stock Agreement, 50% of the then-outstanding shares of restricted stock held by the executive vested and were released from the Company's right to acquire such shares upon the effectiveness of the Company's Registration Statement on October 10, 2012. The Company recognized a non-cash equity-based compensation expense of $3,627, which is included in general and administrative expense, in connection with a one-time acceleration charge for the vesting of 50% of the unvested portion of the restricted stock award based on the exchange date fair value during the year ended December 31, 2012. The Company recognized non-cash equity-based compensation expense of $1,663 and $1,036 during the years ended December 31, 2014 and 2013 in connection with the normal vesting of restricted stock. Additionally, the Company recognized a non-cash equity-based compensation expense of $258, which is included in general and administrative expense, since the Reorganization date through December 31, 2012 as a result of the restricted stock's normal service vesting.
	The following table presents a summary of the Company's RSUs activity for the year ended December 31, 2014:
		Plan			Weighted Average
		RSUs			Fair Value
	Non-vested balance at December 31, 2012		—		$	—
	Units granted		10,000			47.17
	Units vested		—			—
	Units cancelled or forfeited		—			—
	Non-vested balance at December 31, 2013		10,000		$	47.17
	Units granted		702,622			82.34
	Units vested		(7,975	)		63.46
	Units cancelled or forfeited		(51,750	)		89.71
	Non-vested balance at December 31, 2014		652,897		$	81.45
	The Company recognized non-cash equity-based compensation expense of $10,262 and $77, net of estimated forfeitures, in connection with the vesting of RSUs during the years ended December 31, 2014 and 2013, respectively.
	In connection with the WebDAM acquisition, in order to retain the services of certain former WebDAM employees, the Company granted non-vested RSUs that will vest over two years from the date of acquisition. As these equity awards are subject to post-acquisition employment, the Company accounts for them as compensation expense. A portion of these equity awards are accounted for as liability-classified awards, because the obligations are based on fixed monetary amounts that are known at the inception of the obligation, to be settled with a variable number of shares of the Company's common stock when the equity awards vest. The Company recognized non-cash equity-based compensation expense of $1,328, in connection with the vesting of these obligations during the year ended December 31, 2014. There was no non-cash equity-based compensation expense related to these obligations during the years ended December 31, 2013 and 2012.
	As of December 31, 2014, the total unrecognized compensation charge related to the restricted stock units is approximately $42,700, which is expected to be recognized through fiscal 2020.
The following table summarizes non-cash equity-based compensation expense included in the Company's statement of operations for the years ended December 31, 2014, 2013 and 2012:
	Year Ended December 31,
	2014			2013			2012
Cost of revenue	$	1,283		$	437		$	219
Sales and marketing		3,912			1,296			783
Product development		7,597			1,493			1,696
General and administrative		10,976			2,982			7,687
Total	$	23,768		$	6,208		$	10,385

Members_Equity_and_Stockholder

Members' Equity and Stockholders' Equity	12 Months Ended
	Dec. 31, 2014
Members' Equity and Stockholders' Equity
Members' Equity and Stockholders' Equity	(11) Members' Equity and Stockholders' Equity
	Common Members' Equity
	Prior to the Reorganization, common members' equity consisted of common membership interests. Only certain members had voting rights as designated in the LLC's Operating Agreement with respect to any action presented for a vote of the Company's members and only certain members were entitled to profits interest distributions from the Company's earnings. Common membership was not transferable without prior consent from the Company's BOM.
	Redeemable Preferred Members' Equity
	On June 6, 2007, prior to the Reorganization, the Company's then sole shareholder sold 25% of the common members' equity to outside investors for an aggregate purchase price of $60,000. On February 28, 2008, the outside investors paid a purchase price adjustment in the amount of $1,800 to the selling member as a result of the Company achieving an EBITDA Target as defined in the purchase agreement. The outside investors had the same rights and terms as common members' equity holders except for a liquidation preference and a put preference. The put preference provided the outside investors with the option to redeem their investment for cash with proper notice to the Company on June 6, 2011 or thereafter. The Company treated this transaction as an equity modification. As a result, the Company recorded the change in the fair value of the 25% interest immediately prior to and after the modification of the equity interest as a deemed dividend and charged it against common members' deficit on the modification date. The Company accreted the difference between the carrying value of the preferred membership interest and the redemption value by applying the effective interest method. The Company concluded that the preferred interest possessed characteristics and risks more similar to equity and classified such instrument outside of common members' equity. Since the preferred members had the option to redeem their investment for cash with proper notice to the Company on June 6, 2011 or thereafter, the Company recorded the transaction outside of common members' equity. The purchase agreement also provided for the reduction of preferred interests for any distributions paid to the preferred holders. A summary of the Company's preferred members' interest account activity is as follows:
			Balance
	Balance as of January 1, 2012		$	33,725
	Distributions			(9,000	)
	Exchanged(1)			(24,725	)
	Balance as of December 31, 2012		$	—
	-1	Balance exchanged from redeemable preferred members' interest to stockholders' equity upon consummation of the Reorganization
	As of the Reorganization date, the outside investors did not exercise this put preference, therefore, the entire redeemable preferred membership interests in the LLC were exchanged for shares of Shutterstock, Inc. common stock. There has been no activity in the preferred members' interest account since the Reorganization on October 5, 2012.
	Common Stock
	In connection with the Reorganization, the common and redeemable preferred membership interests in the LLC, including any interests that vested upon the Reorganization, were exchanged for shares of Shutterstock, Inc. common stock. The holders of common stock are entitled to one vote for each share held of record on all matters submitted to a vote of the stockholders. Subject to preferences that may be applicable to any outstanding preferred stock, holders of common stock are entitled to receive ratably such dividends as may be declared by the board of directors out of funds legally available for that purpose. In the event of liquidation, dissolution or winding up of the Company, the holders of common stock are entitled to share ratably in all assets remaining after payment of liabilities, subject to the prior distribution rights of any outstanding preferred stock. The common stock has no preemptive or conversion rights or other subscription rights. The outstanding shares of common stock are fully paid and non-assessable. Under the amended and restated certificate of incorporation, which became effective upon completion of the IPO, the Company's certificate of incorporation authorized 200,000,000 shares of $0.01 par value common stock.
	Preferred Stock
	Under the amended and restated certificate of incorporation, which became effective upon completion of the IPO, the Company's board of directors has the authority, without further action by the stockholders, to issue up to 5,000,000 shares of preferred stock, $0.01 par value, in one or more series. The board of directors also has the authority to designate the rights, preferences, privileges and restrictions of each such series, including dividend rights, dividend rates, conversion rights, voting rights, terms of redemption, redemption prices, liquidation preferences and the number of shares constituting any series.
	The issuance of preferred stock may have the effect of delaying, deferring or preventing a change in control of Shutterstock without further action by the stockholders. The issuance of preferred stock with voting and conversion rights may also adversely affect the voting power of the holders of common stock. In certain circumstances, an issuance of preferred stock could have the effect of decreasing the market price of the common stock. As of December 31, 2014, the Company has not issued and has no plans to issue any shares of preferred stock.
	Distributions to Members
	In accordance with the LLC's Amended and Restated Limited Liability Company Agreement, prior to the Reorganization, cash distributions to the members were based on their respective percentage interests to the extent cash was available as determined by the board. Distributions were also limited to the extent that liabilities, excluding any owed to the members, exceeded fair market value of the LLC 's assets. Upon a dissolution event of the LLC, any assets were to be distributed 1) to creditors, including members who are creditors, by payment or provision for payment of the debt and liabilities of the LLC and the expenses of the liquidation; 2) to the setup of any reserves that are reasonably necessary for any contingent or unforeseen liabilities or obligations of the LLC; 3) to the preferred members until they have received distributions which, when aggregated with all prior distributions made to them equal their liquidation preference; 4) to Pixel Holdings Inc., which was the LLC's majority member, until such time that it has received distributions equal to the liquidation preference paid to the preferred members; 5) 75% to the common member with 8.5% membership interest, and 25% to the preferred members, until the aggregate amount of the distributions made to the 8.5% membership interest holder equals the product of $120,000 multiplied by their vested percentage; and 6) to the members in proportion to their percentage interests. For the year ended December 31, 2012, the LLC distributed $36,000 to its common and preferred members. Upon consummation of the Reorganization, the LLC's Amended and Restated Limited Liability Company Agreement terminated. There have been no distributions made since the Reorganization on October 5, 2012.

Related_Parties

Related Parties	12 Months Ended
	Dec. 31, 2014
Related Parties
Related Parties	(12) Related Parties
	In connection with the follow-on offering in September 2013, Pixel Holdings Inc. ("Pixel Holdings"), an entity of which Jonathan Oringer, the Company's Founder, Chief Executive Officer and Chairman of the Board, was the sole stockholder, merged with and into the Company on September 18, 2013. In this merger, Mr. Oringer received an equivalent number of shares of common stock of the Company as the number that was previously owned by Pixel Holdings such that, following the merger, Mr. Oringer owns his interest in the Company directly rather than through Pixel Holdings. As a result of the merger, the Company assumed $208 in liabilities primarily related to Pixel Holdings' normal operating activities. The Company paid these liabilities during the year ended December 31, 2013 and was fully indemnified by Mr. Oringer, as provided for in the merger agreement, as of December 31, 2013. The merger agreement also provided for certain customary representations and warranties.

Unaudited_Quarterly_Financial_

Unaudited Quarterly Financial Data	12 Months Ended
	Dec. 31, 2014
Unaudited Quarterly Financial Data
Unaudited Quarterly Financial Data	(13) Unaudited Quarterly Financial Data
	The following table sets forth, for the periods indicated, the Company's financial information for the eight most recent quarters ended December 31, 2014. In the Company's opinion, this unaudited information has been prepared on a basis consistent with the annual consolidated financial statements and includes all adjustments, consisting only of normal recurring adjustments, necessary for a fair presentation of the unaudited information for the periods presented.
		Three Months Ended
		Dec. 31,			Sept. 30,			June 30,			Mar. 31,		Dec. 31,		Sept. 30,		June 30,		Mar. 31,
		2014			2014			2014			2014		2013		2013		2013		2013
	Revenue	$	91,226		$	83,730		$	80,238		$	72,777	$	68,031	$	59,558	$	56,809	$	51,117
	Operating expenses:
	Cost of revenue		35,607			33,260			32,047			29,108		26,102		22,936		21,768		19,821
	Sales & marketing		21,235			21,122			20,492			19,276		16,499		14,947		13,314		11,978
	Product development		11,379			9,870			9,275			7,777		6,464		5,685		5,060		4,555
	General and administrative		10,781			10,588			9,994			7,517		6,473		6,076		5,734		4,780
	Total operating expenses		79,002			74,840			71,808			63,678		55,538		49,644		45,876		41,134
	Income from operations		12,224			8,890			8,430			9,099		12,493		9,914		10,933		9,983
	Other (expense)/ income, net		(418	)		(50	)		(19	)		21		24		20		20		(12	)
	Income before income taxes		11,806			8,840			8,411			9,120		12,517		9,934		10,953		9,971
	Provision for income tax		4,774			3,562			3,550			4,202		4,660		3,740		4,090		4,406
	Net income		7,032			5,278			4,861			4,918		7,857		6,194		6,863		5,565
	Less:
	Undistributed earnings to participating shareholder		12			9			10			11		21		18		22		19
	Net income available to common shareholders	$	7,020		$	5,269		$	4,851		$	4,907	$	7,836	$	6,176	$	6,841	$	5,546
	Net income per basic share available to common shareholders:
	Undistributed	$	0.2		$	0.15		$	0.14		$	0.14	$	0.22	$	0.18	$	0.2	$	0.17
	Basic		0.2			0.15			0.14			0.14		0.22		0.18		0.2		0.17
	Net income per diluted share available to common shareholders:
	Undistributed		0.19			0.15			0.14			0.14		0.22		0.18		0.2		0.16
	Basic	$	0.19		$	0.15		$	0.14		$	0.14	$	0.22	$	0.18	$	0.2	$	0.16
	Weighted average shares outstanding:
	Basic		35,451,756			35,304,066			35,148,876			35,027,480		34,935,495		33,692,876		33,471,679		33,398,797
	Diluted		36,000,651			35,931,454			35,874,789			35,838,853		35,619,474		34,280,656		34,040,934		33,851,843

Subsequent_Events

Subsequent Events	12 Months Ended
	Dec. 31, 2014
Subsequent Events
Subsequent Events	(14) Subsequent Events
	On January 19, 2015, the Company completed the acquisition of all of the shares of Rex Features (Holdings) Limited ("Rex") for a total purchase price of $33,000, of which $31,700 was paid in cash and subject to certain working capital adjustments. The remaining $1,300 represents the fair value of RSUs granted by the Company to certain employees of Rex.
	On January 22, 2015, the Company completed the acquisition of substantially all of the assets and certain liabilities of Arbour Interactive Inc. doing business as PremiumBeat ("PremiumBeat"). The total purchase price paid by the Company at closing was $31,700 in cash, subject to certain adjustments. In addition, the Company granted equity in the form of RSUs to certain employees of PremiumBeat with a value equal to $5,000. The Company is also obligated to pay to PremiumBeat a cash payment of up to $10,000 in early 2017 contingent upon the achievement of certain incremental revenue-based targets related to the Company's music businesses.
	The Company will record the purchases of Rex and PremiumBeat using the acquisition method of accounting and will recognize the assets acquired and liabilities assumed at their fair values as of the date of the acquisition. The results of Rex's and Premuim Beat's operations will be included in the Company's consolidated results of operations beginning on the date of the acquisition. The Company is currently evaluating the fair values of the consideration transferred, assets acquired and liabilities assumed for both acquisitions. The Company expects to complete its initial purchase price allocation in the first quarter of fiscal 2015.

Summary_of_Operations_and_Sign1

Summary of Operations and Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2014
Summary of Operations and Significant Accounting Policies
Principles of Consolidation	Principles of Consolidation
	The consolidated financial statements reflect the operations of the Company and its wholly-owned subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation.
Reorganization	Reorganization
	In May 2012, in connection with the filing of a registration statement for the Company's initial public offering (the "IPO"), Shutterstock Images LLC, a New York limited liability company (the "LLC") formed Shutterstock, Inc., a Delaware corporation, as a wholly-owned subsidiary of the LLC. On October 5, 2012, the LLC reorganized, by way of a merger of the LLC with and into Shutterstock, Inc. with Shutterstock, Inc. surviving in the merger (the "Reorganization"). In connection with the Reorganization, the preferred and common membership interests in the LLC, including any interests that vested upon the Reorganization, were exchanged for an aggregate of 28,338,281 shares of Shutterstock, Inc. common stock.
Initial Public Offering	Initial Public Offering
	On October 16, 2012, the Company completed an IPO of 5,175,000 shares of its common stock, including 675,000 shares sold as a result of the underwriters' exercise of their overallotment option, at a price of $17.00 per share. The IPO resulted in net proceeds to the Company of approximately $81,811 after deducting underwriting discounts and commissions, and before deducting total expenses incurred in connection with the offering of $4,927.
Follow-On Offering	Follow-On Offering
	On September 25, 2013, the Company completed a follow-on offering of 5,290,000 shares of its common stock, which included 690,000 shares of common stock sold by the Company and certain stockholders as a result of the underwriters' exercise of their option to purchase additional shares, at a price of $60.00 per share. The Company sold 1,150,000 shares of common stock in the offering and the selling stockholders sold 4,140,000 shares of common stock in the offering. The aggregate offering price for shares sold by the Company in the offering resulted in net proceeds to the Company of $65,895 after deducting underwriting discounts and commissions, and before deducting total expenses incurred in connection with the offering of approximately $947.
Acquisition of Virtual Moment, LLC	Acquisition of Virtual Moment, LLC
	On March 14, 2014, the Company acquired certain assets and certain liabilities of Virtual Moment, LLC (dba WebDAM) ("WebDAM") pursuant to an asset purchase arrangement. The transaction was accounted for using the acquisition method, and accordingly, the results of the acquired business have been included in the Company's results of operations from the acquisition date.
	WebDAM sells digital asset management software services through its cloud-based platform to marketing and creative enterprise organizations. WebDAM's products help organizations manage, search, distribute and collaborate on creative digital files in order to grow its brands and reach new audiences. WebDAM's offerings are particularly attractive to large enterprises, which make up a significant portion of its client base. The Company believes that this acquisition will strengthen its strategic position with its enterprise customers as well as broaden its product offerings to larger companies.
	The fair value of consideration transferred in this business combination was allocated to the intangible assets acquired and liabilities assumed at the acquisition date, with the remaining unallocated amount recorded as goodwill.
	The total purchase price of $12,416 consists of an initial cash payment of $10,056 and $2,360 in contingent consideration based on certain performance criteria of post-acquisition revenue. The fair value of the contingent consideration was determined using a Monte-Carlo simulation approach. The aggregate purchase price was allocated to the assets acquired and liabilities assumed as follows:
	Intangible assets:
	Trade name		$	500
	Customer relationships			2,800
	Developed technology			600
	Goodwill			8,763
	Total assets acquired			836
	Total liabilities assumed			(1,083	)
	Total		$	12,416
	The identifiable intangible assets have a weighted average life of approximately seven years and are being amortized on a straight-line basis which approximates the pattern of use. The fair value of the customer relationships was determined using a variation of the income approach known as excess earnings method. The fair values of the trade name and developed technology were both determined using the relief-from-royalty method. The goodwill arising from the transaction is primarily attributable to expected operational synergies and is deductible for income tax purposes. As a result of the acquisition, the Company recorded approximately $400 of professional fees for the year ended December 31, 2014 which is included in general and administrative expense.
	The contingent consideration is required to be paid no later than July 2016 and is based on post-acquisition revenue from February 2015 through January 2016. The minimum payment is $1,000 with escalating payments based on achievement of various revenue amounts. As of December 31, 2014, the Company's contingent consideration balance is $2,560 and is included other non-current liabilities.
	Pro forma results of operations have not been presented because the effect of this business combination was not material to the Company's consolidated results of operations.
Use of Estimates	Use of Estimates
	The preparation of the consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires the Company's management to make a number of estimates and assumptions relating to the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the consolidated financial statements, and the reported amounts of revenue and expenses during the period. The Company evaluates its significant estimates on an ongoing basis, including, but not limited to allowance for doubtful accounts, contingent consideration, sales refund reserve, goodwill, intangibles, non-cash equity-based compensation, income tax provision and for certain non-income tax accruals. The Company bases its estimates on historical experience and on various other assumptions that it believes to be reasonable under the circumstances, the results of which form the basis for making judgments about carrying values of assets and liabilities that are not readily apparent from other sources. Actual results could differ from those estimates.
Sales, Value-Added and Use Taxes	Sales, Value-Added and Use Taxes
	Amounts charged to customers or paid on behalf of customers related to sales taxes, value-added taxes and other usage taxes are classified net of revenue. Where appropriate, the Company has accrued for these matters, which are reflected in the Company's consolidated financial statements. These accruals are subject to statute of limitations requirements and review by governmental authorities.
Concentration of Credit and Contributor Risk	Concentration of Credit and Contributor Risk
	At certain times, the Company's cash balances with any one financial institution may exceed Federal Deposit Insurance Corporation insurance limits. The Company believes it mitigates its risk by depositing its cash balances with financial institutions of high quality.
	The Company's customers and contributors are located worldwide. The majority of the Company's customers purchase products by making electronic payments at the time of a transaction. The Company performs ongoing financial condition evaluations for its existing customers and performs credit evaluations for certain new customers. Concentration of credit risk is limited due to the Company's large number of diversified customers. No single customer accounted for or exceeded 10% of revenue for the years ended December 31, 2014, 2013 or 2012, respectively. As of December 31, 2014 and 2013, no single customer accounted for or exceeded 10% of credit card receivables. As of December 31, 2014 and 2013, no single customer accounted for or exceeded 10% of accounts receivable.
	No single contributor accounted for or exceeded 10% of contributor royalties for the years ended December 31, 2014, 2013 and 2012, respectively.
Fair Value Measurements	Fair Value Measurements
	The Company records its financial assets and liabilities at fair value. The accounting standard for fair value provides a framework for measuring fair value, and defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the reporting date. The accounting standard establishes a three-tier hierarchy as follows: Level 1—quoted prices (unadjusted) in active markets for identical assets or liabilities; Level 2—inputs other than quoted prices included within Level 1 that are either directly or indirectly observable; and Level 3—unobservable inputs in which little or no market activity exists, therefore requiring an entity to develop its own assumptions about the assumptions that market participants would use in pricing.
Cash and Cash Equivalents	Cash and Cash Equivalents
	The Company considers all highly liquid securities with original maturities of three months or less when acquired to be cash equivalents. Cash primarily consists of balances in checking, savings and money market accounts, which are recorded at cost and approximate fair value.
Short-Term Investments	Short-Term Investments
	Short-term investments consist of commercial paper and are classified as available-for-sale securities. As these securities mature in 90 days or less and are available to support current operations, the Company has classified all available-for-sale securities as short-term. Available-for-sale securities are carried at fair value with unrealized gains and losses reported as a component of other accumulated comprehensive (loss)/income in stockholders' equity and in the consolidated statement of comprehensive income, while realized gains and losses, and other-than-temporary impairments, if any, are reported as a component of net income. For the periods presented, realized and unrealized gains and losses on investments were not material. An impairment charge, if any, is recorded in the consolidated statements of operations for declines in fair value below the cost of an individual investment that are deemed to be other than temporary. The Company assesses whether a decline in value is temporary based on the length of time that the fair market value has been below cost, the severity of the decline, as well as the intent and ability to hold, or plans to sell, the investment. We did not identify any of our short-term investments as other-than-temporarily impaired as of December 31, 2014 and 2013.
Restricted Cash	Restricted Cash
	The Company's restricted cash relates to security deposits for leased office locations. As of December 31, 2014, the Company had $182 of restricted cash recorded in prepaid expenses and other current assets that relates to a leased office location that expires in the next twelve months and had $1,829 of restricted cash recorded in other assets that relates to a leased office location that expires in 2024. As of December 31, 2013, the Company had $243 of restricted cash recorded in prepaid expenses and other current assets that related to a leased office location that expired in 2014 and had $2,017 of restricted cash recorded in other assets that relates to leased office locations that expire in 2015 and 2024, respectively. The carrying value of restricted cash approximates fair value.
Credit Card Receivables	Credit Card Receivables
	The Company's credit card receivables represent amounts due from third party credit card processors. Such amounts generally convert to cash within three to five days with little or no risk of default.
Accounts Receivable and Allowance for Doubtful Accounts	Accounts Receivable and Allowance for Doubtful Accounts
	The Company's accounts receivable are customer obligations due under normal trade terms, carried at their face value less an allowance for doubtful accounts if required. The Company determines its allowance for doubtful accounts based on the evaluation of the aging of its accounts receivable and on a customer-by-customer analysis of its high-risk customers. The Company's reserve contemplates its historical loss rate on receivables, specific customer situations and the economic environments in which the Company operates. The following table presents the changes in the Company's allowance for doubtful accounts (in thousands):
			Year Ended December 31,
			2014			2013			2012
	Allowance for doubtful accounts:
	Balance, beginning of period		$	625		$	249		$	256
	Add: bad debt expense			565			519			326
	Less: write-offs, net of recoveries and other adjustments			(159	)		(143	)		(333	)
	Balance, end of period		$	1,031		$	625		$	249
Deferred Financing Fees	Deferred Financing Fees
	The Company deferred and amortized certain financing costs related to its term loan facility which was fully paid as of December 31, 2013. These costs were deferred and amortized over the term of the debt period. As of December 31, 2014 and 2013, the deferred financing fees balance was $0. Amortization of deferred financing costs amounted to $0, $125 and $41 for the years ended December 31, 2014, 2013 and 2012.
Property and Equipment	Property and Equipment
	Property and equipment are stated at cost, net of accumulated depreciation and amortization. Depreciation and amortization is calculated using the straight-line method over the estimated useful lives of the related assets. The useful lives are as follows:
	Equipment		3 years
	Furniture and fixtures		7 years
	Software		3 years
	Leasehold improvements		Shorter of expected useful life or lease term
Capitalized Internal Use Software	Capitalized Internal Use Software
	The Company accounts for the cost of computer software developed for internal use of its application by capitalizing qualifying costs, which are incurred during the application development stage, and amortizing them over the software's estimated useful life. Costs incurred in the preliminary and post-implementation stages of the Company's products are expensed as incurred. The amounts capitalized include external direct costs of services used in developing internal-use software and payroll and payroll-related costs of employees directly associated with the development activities. The Company amortizes capitalized software over the expected period of benefit, which is currently three years, beginning when the software is ready for its intended use. For the years ended December 31, 2014, 2013 and 2012, the Company had gross capitalized costs of $1,204, $768 and $605, respectively, which is included in property and equipment and amortization expense of $253, $194 and $154, respectively, which is included in general and administrative expense. The Company's policy is to amortize such capitalized costs using the straight-line method over the estimated useful life.
Impairment of Long-Lived Assets	Impairment of Long-Lived Assets
	Long-lived assets, inclusive of definite useful life intangible assets, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying value of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying value of an asset to estimated undiscounted future cash flows expected to be generated by the asset. If the carrying value of an asset exceeds its estimated future cash flows, an impairment charge is recognized in the amount by which the carrying value of the asset exceeds the fair value of the asset. Assets to be disposed of would be separately presented in the balance sheet and reported at the lower of the carrying value or the fair value less costs to sell, and are no longer depreciated. The assets and liabilities of a disposed group classified as held for sale would be presented separately in the appropriate asset and liability sections of the balance sheet. There were no impairment charges in 2014, 2013 or 2012.
Goodwill and Intangible Assets	Goodwill and Intangible Assets
	Goodwill and intangible assets acquired in a business combination and determined to have an indefinite useful life are not amortized, but instead tested for impairment at least annually on October 1 of each fiscal year or more frequently if events occur or circumstances exist that indicate that the fair value of a reporting unit may be below its carrying value. Goodwill has been allocated to the Company's reporting units, for the purposes of preparing our impairment analyses, based on a specific identification basis.
Revenue Recognition	Revenue Recognition
	The vast majority of the Company's revenue, net of chargebacks and refunds, is generated from the license of digital content through subscription or usage based plans. The Company's three primary plans are: subscription plans, On Demand plans, and credit pack plans. The Company recognizes revenue when all of the following basic criteria are met: there is persuasive evidence of an arrangement, performance or delivery of services has occurred, the sales price is fixed or determinable, and collectability is reasonably assured. The Company considers persuasive evidence of an arrangement to be an electronic order form, or a signed contract, which contains the fixed pricing terms. Performance or delivery is considered to have occurred upon the ratable passage of time for subscription plans, the download of digital content or the expiration of a contract period for which there are unused downloads or credits. Collectability is reasonably assured since most of the Company's customers purchase products by making electronic payments at the time of a transaction with a credit card. The Company establishes a chargeback allowance and sales refund reserve allowance based on factors surrounding historical credit card chargeback trends, historical sales refund trends and other information. As of December 31, 2014 and 2013, the Company has recorded a chargeback allowance and sales refund allowance of $660 and $425, respectively, which is included in other liabilities. Collectability is assessed for customers who pay on credit based on a credit evaluation for certain new customers, when necessary, and transaction history with existing customers. Any cash received in advance of revenue recognition is recorded as deferred revenue.
	Subscription plans range in length from thirty days to one year. Subscription plan revenues are recognized on a straight-line basis using a daily convention method over the plan term. On Demand plans are typically for a one-year term and permit the customer to download up to a fixed amount of digital content. On Demand revenues are recognized at the time the customer downloads the digital content on a per unit basis. Revenue related to unused digital content, if any, is recognized in full at the end of the plan term assuming no further Company obligation remains. Credit pack plans are generally for a one-year term and enable the customer to purchase a fixed number of credits which can then be utilized to pay for downloaded digital content. The number of credits utilized for each download depends on the digital content size and format. Credit pack revenue is recognized based on customer usage on a per credit basis as digital content is downloaded. Revenue related to unused credits, if any, is recognized in full at the end of the plan term assuming no further Company obligation remains. Most plans automatically renew at the end of the plan term unless the customer elects not to renew. The Company recognizes revenue from its three types of plans on a gross basis in accordance with the authoritative guidance on principal-agent considerations as the Company is the primary obligor in the arrangement, has control in establishing the product's price, performs a detailed review of the digital content before accepting it to its collection to ensure it is of high quality before it may be purchased by the customers, can reject contributor's images in its sole discretion, and has credit risk.
	Customers typically pay in advance (or upon commencement of the term) via credit card, wire or check. Fees paid or invoiced in advance are deferred and recognized as described above. Customers that do not pay in advance are invoiced and are required to make payment under standard credit terms. The Company does not generally offer refunds or the right of return to customers. There are situations in which a customer may receive a refund but the determination is made on a case-by-case basis.
	The Company licenses digital content to customers through third party resellers. The Company contracts with third party resellers around the world to access markets where the Company does not have a significant presence. Third party resellers sell the Company's products directly to end-user customers and remit a fixed amount to the Company based on the type of plan sold. The terms of the reseller program indicate that the third party reseller is the primary obligor to the end-user customer and bears the risks and rewards as principal in the transaction. In assessing whether the Company's revenue should be reported on a gross or net basis with respect to our reseller program, the Company follows the authoritative guidance in ASC 605-45, "Principal Agent Considerations." The Company recognizes revenue net of reseller commission in accordance with the type of plan sold, consistent with the plan descriptions above. The Company generally does not offer refunds or the right of return to resellers.
	The Company also generates revenue related to WebDAM from licensing its hosted software services through its cloud-based platform and related implementation and professional services. The Company enters into multiple element revenue arrangements in which a customer purchases a combination of hosted software, implementation and optional value added professional services. The Company recognizes revenue for the hosted services monthly provided that there is persuasive evidence of an arrangement, the service has been delivered, the fees are fixed and determinable, and collection is reasonably assured. ASC 605-25 establishes a selling price hierarchy for determining the selling price of a deliverable in multiple-element arrangements, which is based on: (a) vendor-specific objective evidence; (b) third-party evidence; or (c) best estimated selling price. The hosted software services are recognized ratably over the contractual period as this service is on-going over the hosting period which is generally a one-year term. The Company recognizes any setup or implementation revenue ratably over the longer of the contractual term or the estimated customer relationship period which is currently three years. Any value added professional services are recognized upon completion.
Cost of Revenue	Cost of Revenue
	The Company's cost of revenue includes contributor royalties, credit card processing fees, content reviewer expenses, hosting and bandwidth expenses, content personnel salaries, non-cash equity-based compensation, amortization of content and technology intangible assets, and depreciation of network equipment, which are the direct costs related to providing content to customers. Additionally, the Company includes an allocation of overhead costs primarily related to payroll, insurance, and facilities expenses based on headcount.
Contributor Royalties and Internal Sales Commissions	Contributor Royalties and Internal Sales Commissions
	The Company expenses contributor royalties in the period during which a customer download occurs and includes the corresponding contributor royalties in cost of revenue. Contributor royalties are generally paid weekly or monthly. The Company advances certain contributor royalties which are initially deferred and expensed based on the contractual royalty rate at the time of customer download or when the Company determines future recovery is not probable. For the years ended December 31, 2014 and 2013, the Company deferred $1,628 and $3,419, respectively, in royalty advances and amortized $3,050 and $510, respectively, in royalty advance expense which is included in cost of revenue. As of December 31, 2014 and 2013, the Company has deferred contributor royalties of $1,997 and $2,908, respectively, which is included in prepaid expenses and other current assets. The Company did not defer any royalty advances and therefore did not amortize any royalty advance expense for the year ended December 31, 2012.
	Internal sales commissions are generally paid in the month following collection or invoicing of the commissioned receivable. Internal sales commission expense is included in sales and marketing expense. Internal sales commissions are deferred and recognized over the expected future revenue stream which is generally up to twelve months. For the years ended December 31, 2014, 2013 and 2012, the Company deferred $2,995, $2,005 and $2,023, respectively, and amortized $2,654, $2,086 and $1,649, respectively, in internal sales commission expense which is included in sales and marketing expense. As of December 31, 2014 and 2013, the Company recorded deferred internal sales commission of $784 and $443, respectively, which is included in prepaid expenses and other current assets.
Product Development	Product Development
	The Company expenses product development costs as incurred, except for costs that are capitalized for certain internal software development projects. Product development costs are primarily comprised of development personnel salaries, non-cash equity-based compensation, equipment costs as well as allocated occupancy costs and related overhead. For the years ended December 31, 2014, 2013 and 2012, the Company capitalized $1,038, $163 and $146, respectively, which is included in total capitalized software costs included in property and equipment.
Advertising Costs	Advertising Costs
	The Company expenses the cost of advertising and promoting its products as incurred. Such costs totaled $43,695, $34,090 and $32,648 for the years ended December 31, 2014, 2013 and 2012, respectively, which are included in sales and marketing expense.
Deferred Rent	Deferred Rent
	The Company records rent expense on a straight-line basis over the term of the related lease. The difference between the rent expense recognized and the actual payments made in accordance with the lease agreement is recognized as a deferred rent liability on the Company's balance sheet. As of December 31, 2014, the Company recorded deferred rent of $8,036, of which $693 is included in other liabilities and $7,343 is included in other non-current liabilities. As of December 31, 2013, the Company recorded deferred rent of $4,783, of which $2,406 is included in other liabilities and $2,377 is included in other non-current liabilities.
Equity-Based Compensation	Equity-Based Compensation
	The Company measures and recognizes non-cash equity-based compensation expense for all stock-based awards granted to employees based on estimated fair values. The value portion of the award that is ultimately expected to vest is recognized as expense over the requisite service period. For awards with a change of control condition, an evaluation is made at the grant date and future periods as to the likelihood of the condition being met. Compensation expense is adjusted in future periods for subsequent changes in the expected outcome of the change of control conditions until the vesting date. Forfeitures are estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates. Compensation expense related to awards with a market condition is recognized ratably over the requisite service period regardless of the achievement of the market condition.
	The Company uses the Black Scholes option pricing model, the closing price of the Company's common stock on the date of grant, and the Monte Carlo simulation model, if the award has a market condition, to determine the fair value of stock options and restricted stock units ("RSUs"), respectively, granted pursuant to the Value Appreciation Rights Plan ("VAR Plan"), or the 2012 Omnibus Equity Incentive Plan (the "2012 Plan") and stock purchased pursuant to the Employee Stock Purchase Plan ("2012 ESPP"), which are discussed further in Note 10, Equity-Based Compensation.
	The determination of the grant date fair value using an option-pricing model and simulation model requires judgment as well as assumptions regarding a number of other complex and subjective variables. These variables include the Company's fair value of the common ownership interest pre-IPO, the Company's closing market price at the grant date post-IPO, the expected unit price volatility over the expected term of the awards, awards' exercise and cancellation behaviors, risk-free interest rates, and expected dividends, which are estimated as follows:
	•	Fair Value of Common Stock/Membership Unit.  Prior to completion of the IPO, the Company's fair value of common ownership interest was estimated internally and approved by the Board of Managers ("BOM") because the Company was not publicly traded. The Company's intention upon granting VAR Plan awards was for the granted award to have exercisable price per unit that was not less than the per unit fair value of the Company's common equity on the date of grant. The valuations of the Company's common equity unit were prepared in accordance with the American Institute of Certified Public Accountants Statement on Standards for Valuation Services 1: Valuation of a Business, Business Ownership Interest, Security, or Intangible Asset. The assumptions used in the valuation model were based on future expectations combined with the Company's judgment. In the absence of a public trading market, the Company exercised significant judgment and considered numerous objective and subjective factors to determine the fair value of the common equity unit as of the date of each VAR Plan award grant. Some but not all of these factors included operating and financial performance, current business conditions and projections, the hiring of key personnel, the Company's history and introduction of new functionality and services, the Company's stage of development, the likelihood of achieving a liquidity event for the common ownership interests, any adjustment necessary to recognize a lack of marketability for the common ownership interests, the market performance of comparable publicly traded companies, and U.S. and global capital market conditions. The Company also obtained independent third party valuations on a periodic basis. After October 11, 2012, the date the Company's common stock began trading on the NYSE, the grant date fair value for stock-based awards is based on the closing price of the Company's common stock on the NYSE on the date of grant and fair value for all other purposes related to stock-based awards shall be the closing price of the Company's common stock on the NYSE on the relevant date.
	•	Expected Term.  The expected term is estimated using the simplified method allowed under Securities and Exchange Commission ("SEC") guidance. In certain cases for market based awards, the Company's expected term is based on a combination of historical data and estimates of the period of time the award will be outstanding.
	•	Volatility.  As the Company did not have a trading history for its common ownership interest pre-IPO or a significant range of its common stock post-IPO, the expected price volatility for the common ownership interest and common stock was estimated by taking the average historic price volatility for industry peers based on daily price observations over a period equivalent to the expected term of the VAR Plan awards and stock options granted post-IPO. Industry peers consisted of several public companies similar in size, stage of life cycle and financial leverage. The Company did not rely on implied volatilities of traded options in the industry peers' common stock because the volume of activity was relatively low. The Company applied this process using the same or similar public companies until the fourth quarter of 2014, at which time the Company determined it had a sufficient amount of historical information regarding the volatility of its own common stock.
	•	Risk-free Interest Rate.  The risk-free interest rate is based on the yields of U.S. Treasury securities with maturities similar to the expected term of each award group.
	•	Dividend Yield.  Before the Reorganization, the Company historically paid cash dividends or distributions to its members. Following the Reorganization, the Company has not paid cash distributions to its stockholders and it does not intend to do so for the foreseeable future. As a result, the Company used an expected dividend yield of zero.
	If any of the assumptions used in the Black-Scholes pricing model or Monte Carlo simulation model changes significantly, the fair value for future awards may differ materially compared with the awards granted previously. The awards granted pursuant to the VAR Plan or the 2012 Plan, and stock purchased pursuant to the 2012 ESPP are subject to a time-based vesting requirement and for certain award grants are also based on a market condition. The majority of stock option awards granted under the 2012 Plan vest over four years while the majority of the restricted stock units granted under the 2012 Plan vest over three years. The 2012 ESPP provides for purchase periods approximately every six months and a participant must be employed on the purchase date to participate. The VAR Plan awards had a condition that a change of control (as defined in the VAR Plan) must occur for a payment to trigger with respect to the VAR Plan awards. In connection with the Company's Reorganization, all of the VAR Plan awards were exchanged for options to purchase shares of common stock of Shutterstock, Inc. As a result of the completion of the IPO in October 2012, the Company began recording equity-based compensation expense using the accelerated attribution method, net of forfeitures, based on the grant date fair value of the VAR Plan awards that were exchanged for options to purchase shares of common stock of Shutterstock, Inc. as part of the Company's Reorganization.
	For pre-IPO stock based awards that qualified for liability classification, the Company has elected to use the intrinsic value method to value the common membership interest in accordance with authoritative guidance on stock compensation. See Note 10, Equity-Based Compensation, for further information.
Income Taxes	Income Taxes
	The Company filed its income tax returns as a limited liability company and was taxed as a "pass through" partnership for federal and state income tax purposes for all periods prior to its Reorganization on October 5, 2012. For all periods prior to the Reorganization, the Company recognized no federal and state income taxes, as the members of the LLC, and not the Company itself, were subject to income tax on their allocated share of the Company's earnings. However, the Company was subject to taxation on allocable portions of its net income or other taxes based on various methodologies employed by taxing authorities in certain localities. The Company generally made monthly dividend distributions to its members under the terms of the LLC's operating agreement, subject to the Company's operating cash needs.
	Effective with the Reorganization, the Company became a Delaware corporation, and therefore became subject to federal and state income tax expense beginning October 6, 2012. As a result of this tax status change, the Company recorded an incremental net deferred tax asset and a one-time non-cash tax benefit of approximately $28,811 in the fourth quarter of the fiscal year ended December 31, 2012.
	The Company filed tax returns as a partnership for the period from January 1, 2012 through October 5, 2012 and filed tax returns as a corporation for the period from October 6, 2012 through December 31, 2012 and will continue to do so for all periods and any new tax jurisdictions thereafter. Significant management judgment is required in projecting ordinary income in order to determine the Company's estimated effective tax rate.
	The Company accounts for unrecognized tax benefits using a more-likely-than-not threshold for financial statement recognition and measurement of tax positions taken or expected to be taken in a tax return. The Company establishes reserves for tax-related uncertainties based on estimates of whether, and the extent to which, additional taxes may be due. The Company records an income tax liability, if any, for the difference between the benefit recognized and measured and the tax position taken or expected to be taken on the Company's tax returns. To the extent that the assessment of such tax positions changes, the change in estimate is recorded in the period in which the determination is made. The reserves are adjusted in light of changing facts and circumstances, such as the outcome of a tax audit or lapses in statutes of limitations. Any reserve for uncertain tax provisions and related penalties and interest, if any, are included in the income tax provision.
	The Company assessed the realizability of deferred tax assets and determined that based on the available evidence, including a history of taxable income and estimates of future taxable income, it is more likely than not that the deferred tax assets will be realized. The Company will continue to evaluate its ability to realize deferred tax assets on a quarterly basis. Significant management judgment is required in determining the provision for income taxes and deferred tax assets and liabilities. In the event that actual results differ from these estimates, the Company will adjust these estimates in future periods which may result in a change in the effective tax rate in a future period.
	The Company is subject to compliance requirements for certain non-income taxes, including value added taxes, sales taxes and royalty withholding taxes. Where appropriate, the Company has made accruals for these taxes, which are reflected in the Company's consolidated financial statements.
Net Income Per Share	Net Income Per Share
	Basic net income per share is computed by dividing the net income attributable to common stockholders by the weighted average number of common shares outstanding during the period. The Company applies the two-class method for calculating and presenting income per share. Under the two-class method, net income is allocated between shares of common stock and other participating securities based on their contractual participating rights to share in the earnings as if all of the earnings for the period have been distributed. Participating securities are defined as securities that participate in dividends with common stock according to a pre-determined formula or a contractual obligation to share in the income of the entity. Any potential issuance of common shares, including those that are contingent and do not participate in dividends, are excluded from weighted average number of common shares outstanding. Undistributed net income (loss) for a given period is apportioned to participating stockholders based on the weighted average number of shares for each class of securities outstanding during the applicable period as a percentage of the combined weighted average number of these securities outstanding during the period. Income available to common stockholders is computed by deducting dividends paid to preferred stockholders, accretion to redemption value on preferred members shares, less income allocated to participating securities including unvested shares for the restricted award holder since these unvested shares have participating rights. See Note 10, Equity-Based Compensation, for further discussion.
	Diluted net income per share is computed by dividing the net income available to common shareholders/members adjusted for any changes in income that would result from the assumed conversion of the potential common shares by the weighted average common shares outstanding and all potential common shares, if they are dilutive. Diluted net income available to common shareholders/members for the years ended December 31, 2014, 2013 and 2012 includes the effect of 2,105,898, 1,787,606 and 1,789,318 shares, respectively, while 519,672, 193,040 and 106,500 shares, respectively, were excluded since they were anti-dilutive.
	A reconciliation of assumed exercised shares used in calculating basic and diluted net income share available to common shareholders/members follows:
			Year Ended December 31,
			2014			2013			2012
	Basic			35,234,768			33,878,494			23,785,299
	Stock options and employee stock purchase plan shares			585,755			508,935			47,924
	Unvested restricted stock awards			92,638			38,580			—
	Diluted			35,913,161			34,426,009			23,833,223
Segment Reporting	Segment Reporting
	For the year ended December 31, 2014, the Company has identified four operating segments and has aggregated them into one primary reportable business segment based on the aggregation criteria within the authoritative guidance on segment reporting. The Company considered the similarity of the product sold, the distribution processes involved, targeted customers and economic characteristics among the operating segments in its aggregation criteria evaluation. Operating segments are defined as components of an enterprise for which separate financial information is available and is evaluated regularly by the Company's chief operating decision maker ("CODM"), or decision-making group, in deciding how to allocate resources and in assessing performance. The non-reportable segments classified in the Other Category include several business units, none of which meet the quantitative thresholds for separate segment reporting. The Other Category group currently includes the Company's digital asset management and on-line learning video business units. The non-allocated corporate expenses primarily relate to shared operational support function such as sales, marketing, public relations, product development and engineering support, in addition to the general and administrative functions of human resources, legal, finance and information technology.
	The following table summarizes segment information for the year ended December 31, 2014:
			Content Business			Other Category			Total
	Revenue		$	324,533		$	3,438		$	327,971
	Operating expenses			172,026			7,675			179,701
	Operating profit (loss)		$	152,507		$	(4,237	)		148,270
	Unallocated corporate expenses									109,627
	Income from operations								$	38,643
	Asset information on a segment basis is not disclosed as this information is not separately identified or internally report to the Company's CODM.
	Prior to the year ended December 31, 2014, the Company had identified three operating segments and aggregated them into one reportable segment based on the aggregation criteria within the authoritative guidance on segment reporting. There was no segment classified as Other Category as these business units were not yet in existence or were inconsequential.
	The following represents our geographic revenue based on customer location:
			Year Ended December 31,
			2014			2013			2012
	North America		$	121,896		$	84,754		$	59,963
	Europe			115,245			84,644			62,943
	Rest of the world			90,830			66,117			46,710
	Total revenue		$	327,971		$	235,515		$	169,616
	Included in North America is the United States which comprises 33%, 32%, and 32% of total revenue for years ended December 31, 2014, 2013, and 2012, respectively. No other country accounts for more than 10% of the Company's revenue in any period. All long-lived assets are located in North America.
Foreign Currency Transactions	Foreign Currency Transactions
	During the year ended December 31, 2013, the Company established foreign subsidiaries in various countries around the world and as a result the financial statements of these foreign subsidiaries are reported in the applicable foreign currencies (functional currencies). Financial information is translated from the applicable functional currency to the U.S. Dollar (the reporting currency) for inclusion in the Company's consolidated financial statements. Income, expenses and cash flows are translated at average exchange rates prevailing during the fiscal period, and assets and liabilities are translated at fiscal period-end exchange rates. Resulting translation adjustments are included as a component of other accumulated comprehensive (loss)/income in stockholders' equity. During the year ended December 31, 2012, the Company had determined that the U.S. Dollar was its functional currency worldwide and therefore did not have any foreign currency translation adjustment. Transaction gains and losses related to cash balances denominated in a currency other than the functional currency of the foreign subsidiary are included in other (expense) income, net. During the years ended December 31, 2014, 2013 and 2012, the Company's foreign currency transaction activity was immaterial to the financial statements.
Comprehensive (Loss)/Income	Comprehensive (Loss)/Income
	Comprehensive (loss)/income includes certain changes in stockholders' equity that are excluded from net income (loss) such as foreign currency translation adjustments and unrealized gains or losses on marketable securities. As of December 31, 2014 and 2013, other comprehensive (loss) income of $(638) and $9 was comprised of foreign currency translation (loss) gain in the amount of $(670) and $3 and unrealized gain on investments in the amount of $32 and $6, respectively. As of December 31, 2012, the Company had no other comprehensive income.
Recently Issued Accounting Standard Updates	Recently Issued Accounting Standard Updates
	In May 2014, the Financial Accounting Standards Board ("FASB") issued new accounting guidance related to revenue recognition. This new standard will replace all current GAAP guidance on this topic and will eliminate all industry-specific guidance. The new revenue recognition standard provides a unified model 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 for which the entity expects to be entitled in exchange for those goods or services. This guidance will be effective beginning January 1, 2017 and can be applied either retrospectively to each period presented or as a cumulative-effect adjustment as of the date of adoption. The Company is evaluating the impact, if any, of adopting this new accounting standard on its financial statements.
	In June 2014, the FASB issued new guidance related to stock compensation. The new standard requires that a performance target that affects vesting, and that could be achieved after the requisite service period, be treated as a performance condition. As such, the performance target should not be reflected in estimating the grant date fair value of the award. This update further clarifies that compensation cost should be recognized in the period in which it becomes probable that the performance target will be achieved and should represent the compensation cost attributable to the periods for which the requisite service has already been rendered. The new standard is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015 and can be applied either prospectively or retrospectively to all awards outstanding as of the beginning of the earliest annual period presented as an adjustment to opening retained earnings. Early adoption is permitted. The Company is evaluating the impact, if any, of adopting this new accounting standard on its financial statements.

Summary_of_Operations_and_Sign2

Summary of Operations and Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2014
Summary of Operations and Significant Accounting Policies
Schedule of preliminary aggregate purchase price allocated to assets acquired and liabilities assumed
	Intangible assets:
	Trade name	$	500
	Customer relationships		2,800
	Developed technology		600
	Goodwill		8,763
	Total assets acquired		836
	Total liabilities assumed		(1,083	)
	Total	$	12,416
Schedule of changes in the allowance for doubtful accounts	The following table presents the changes in the Company's allowance for doubtful accounts (in thousands):
		Year Ended December 31,
		2014			2013			2012
	Allowance for doubtful accounts:
	Balance, beginning of period	$	625		$	249		$	256
	Add: bad debt expense		565			519			326
	Less: write-offs, net of recoveries and other adjustments		(159	)		(143	)		(333	)
	Balance, end of period	$	1,031		$	625		$	249
Schedule of useful lives of Property and Equipment
	Equipment	3 years
	Furniture and fixtures	7 years
	Software	3 years
	Leasehold improvements	Shorter of expected useful life or lease term
Schedule of reconciliation of assumed exercised shares used in calculating basic and diluted net income (loss) share available to common stockholders/members
		Year Ended December 31,
		2014			2013			2012
	Basic		35,234,768			33,878,494			23,785,299
	Stock options and employee stock purchase plan shares		585,755			508,935			47,924
	Unvested restricted stock awards		92,638			38,580			—
	Diluted		35,913,161			34,426,009			23,833,223
Schedule of summarizes of segment reporting
		Content Business			Other Category			Total
	Revenue	$	324,533		$	3,438		$	327,971
	Operating expenses		172,026			7,675			179,701
	Operating profit (loss)	$	152,507		$	(4,237	)		148,270
	Unallocated corporate expenses								109,627
	Income from operations							$	38,643
Schedule of geographic revenue based on customer location
		Year Ended December 31,
		2014			2013			2012
	North America	$	121,896		$	84,754		$	59,963
	Europe		115,245			84,644			62,943
	Rest of the world		90,830			66,117			46,710
	Total revenue	$	327,971		$	235,515		$	169,616

ShortTerm_Investments_and_Fair1

Short-Term Investments and Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2014
Short-Term Investments and Fair Value Measurements
Schedule of short-term investments
		As of December 31, 2014
		Amortized		Unrealized		Unrealized			Estimated
		Cost		Gains		Losses			Fair Market
									Value
	Commercial paper	$	54,848	$	—	$	(4	)	$	54,844
	Total	$	54,848	$	—	$	(4	)	$	54,844
		As of December 31, 2013
		Amortized		Unrealized		Unrealized			Estimated
		Cost		Gains		Losses			Fair Market
									Value
	Commercial paper	$	54,431	$	—	$	(2	)	$	54,429
	Total	$	54,431	$	—	$	(2	)	$	54,429
Schedule of fair value measurements
		As of December 31, 2014
		Aggregate		Level 1		Level 2			Level 3
		Fair Value
	Assets:
	Money market accounts	$	81,244	$	81,244	$	—		$	—
	Commercial paper		54,844		—		54,844			—
	Total assets measured at fair value	$	136,088	$	81,244	$	54,844		$	—
	Liabilities:
	Acquisition related contingent consideration	$	2,560	$	—	$	—		$	2,560
	Total liabilities measured at fair value	$	2,560	$	—	$	—		$	2,560
		As of December 31, 2013
		Aggregate		Level 1		Level 2			Level 3
		Fair Value
	Assets:
	Money market accounts	$	81,548	$	81,548	$	—		$	—
	Commercial paper		54,429		—		54,429			—
	Total assets measured at fair value	$	135,977	$	81,548	$	54,429		$	—

Goodwill_and_Intangible_Assets1

Goodwill and Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2014
Goodwill and Intangible Assets
Schedule of changes in goodwill
		Content		Other			Consolidated
		Business		Category
	Balance as of December 31, 2013	$	1,423	$	—		$	1,423
	Goodwill related to acquisition		—		8,763			8,763
	Balance as of December 31, 2014	$	1,423	$	8,763		$	10,186
Schedule of intangible assets
		As of December 31, 2014
		Gross		Accumulated			Net		Weighted
		Carrying		Amortization			Carrying		Average Life
		Amount					Amount		(Years)
	Amortizing intangible assets:
	Customer relationships	$	3,400	$	(921	)	$	2,479		6
	Trade name		900		(230	)		670		9
	Technology		600		(68	)		532		7
	Contributor content(1)		450		(159	)		291		15
	Patents		193		(30	)		163		17
	Domain name		97		(19	)		78		14
	Total	$	5,640	$	(1,427	)	$	4,213
	-1	During the year ended December 31, 2014, the Company acquired certain non-exclusive licensing rights to distribute certain digital content in perpetuity in the amount of $721. The Company has not yet placed the digital content into service and therefore this content is excluded from the table.
		As of December 31, 2013
		Gross		Accumulated			Net		Weighted
		Carrying		Amortization			Carrying		Average Life
		Amount					Amount		(Years)
	Amortizing intangible assets:
	Customer relationships	$	600	$	(600	)	$	—		4
	Trade name		400		(119	)		281		14
	Contributor content		450		(127	)		323		15
	Domain name		86		(9	)		77		15
	Patents		193		(21	)		172		17
	Total	$	1,729	$	(876	)	$	853

Property_and_Equipment_Tables

Property and Equipment (Tables)	12 Months Ended
	Dec. 31, 2014
Property and Equipment
Summary of property and equipment
		December 31,
		2014			2013
	Computer equipment and software	$	24,179		$	14,108
	Furniture and fixtures		2,336			2,588
	Leasehold improvements		13,954			10,669
	Property and equipment		40,469			27,365
	Less: accumulated depreciation		(13,725	)		(7,109	)
	Property and equipment, net	$	26,744		$	20,256

Accrued_Expenses_Tables

Accrued Expenses (Tables)	12 Months Ended
	Dec. 31, 2014
Accrued Expenses
Schedule of accrued expenses
		December 31,
		2014		2013
	Compensation	$	8,312	$	6,379
	Royalty tax withholdings		5,987		5,305
	Non-income taxes		4,670		3,994
	Professional fees		1,708		605
	Marketing expenses		794		475
	Construction costs		98		4,501
	Other expenses		3,504		2,379
	Total accrued expenses	$	25,073	$	23,638

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2014
Income Taxes
Schedule of the Company's geographical breakdown of its income before income taxes
		Year Ended December 31,
		2014			2013			2012
	Domestic	$	37,866		$	43,375		$	21,805
	Foreign		311			—			—
	Income before income taxes	$	38,177		$	43,375		$	21,805
Summary of consolidated provision (benefit) for income taxes
		Year Ended December 31,
		2014			2013			2012
	Current:
	Federal provision	$	19,362		$	949		$	4,329
	State & local provision		1,502			98			1,233
	Foreign provision		121			—			—
	Deferred:
	Federal provision (benefit)		(5,406	)		14,885			(29,772	)
	State & local provision (benefit)		509			964			(1,528	)
	Foreign provision (benefit)		—			—			—
	Provision (benefit) for income taxes	$	16,088		$	16,896		$	(25,738	)
Schedule of provision for income taxes differs from statutory income tax rate
		Year Ended December 31,
		2014			2013			2012
	US income tax at federal statutory rate		35.0	%		35.0	%		35.0	%
	State and local taxes, net of federal benefit		4.2	%		2.3	%		2.8	%
	Foreign rate differential		(0.1	)%		—	%		—	%
	Benefit from change in tax status		—	%		—	%		(131.8	)%
	LLC income not subject to federal and state tax		—	%		—	%		(31.4	)%
	Non-deductible—restricted stock		1.9	%		1.3	%		7.3	%
	Non-deductible—other		1.0	%		0.4	%		0.3	%
	Total provision (benefit) for income taxes		42.00	%		39.00	%		(117.8	)%
Schedule of the Company's tax effects of temporary differences and tax carryforwards that give rise to significant portions of the deferred tax assets
		Year Ended
		December 31,
		2014			2013
	Deferred tax assets:
	Intangible amortization	$	11,283		$	13,235
	Non-cash equity-based compensation		8,284			2,159
	Deferred rent		2,918			1,784
	Non-income tax reserve		2,679			2,376
	Other liabilities		2,056			932
	Deferred tax assets		27,220			20,486
	Deferred tax liabilities:
	Depreciation and amortization		(5,346	)		(4,335	)
	Net deferred tax assets	$	21,874		$	16,151
Summary of changes to the Company's unrecognized tax benefits
		Year Ended December 31,
		2014			2013			2012
	Balance of unrecognized tax benefits at January 1	$	1,500		$	805		$	60
	Gross additions for tax positions for prior years		—			8			18
	Gross additions for tax positions for current year		—			1,056			727
	Gross reductions for tax positions of prior years		—			(369	)		—
	Gross expirations		—			—			—
	Gross settlements		—			—			—
	Balance of unrecognized tax benefits at December 31	$	1,500		$	1,500		$	805

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2014
Commitments and Contingencies.
Schedule of future minimum lease payments under non-cancelable operating leases
	Year Ending December 31	Operating
		Leases
	2015	$	4,884
	2016		4,345
	2017		3,977
	2018		3,924
	2019		4,062
	Thereafter		19,170
	Total minimum lease payments	$	40,362

EquityBased_Compensation_Table

Equity-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2014
Equity-Based Compensation
Schedule of restricted stock units ("RSUs") activity
		Plan			Weighted Average
		RSUs			Fair Value
	Non-vested balance at December 31, 2012		—		$	—
	Units granted		10,000			47.17
	Units vested		—			—
	Units cancelled or forfeited		—			—
	Non-vested balance at December 31, 2013		10,000		$	47.17
	Units granted		702,622			82.34
	Units vested		(7,975	)		63.46
	Units cancelled or forfeited		(51,750	)		89.71
	Non-vested balance at December 31, 2014		652,897		$	81.45
Summary of non-cash equity-based compensation expense included in the Company's statement of operations
		Year Ended December 31,
		2014			2013			2012
	Cost of revenue	$	1,283		$	437		$	219
	Sales and marketing		3,912			1,296			783
	Product development		7,597			1,493			1,696
	General and administrative		10,976			2,982			7,687
	Total	$	23,768		$	6,208		$	10,385
2012 ESPP
Equity-Based Compensation
Schedule of weighted average assumptions used in the fair value calculation
		Year Ended		Year Ended		Period from
		December 31,		December 31,		October 10,
		2014		2013		2012 to
						December 31, 2012
	Expected term (in years)	0.5		0.5			0.64
	Volatility	49% - 52%		49% - 50%			49	%
	Risk-free interest rate	0.08% - 0.60%		0.08% - 0.10%			0.15	%
	Dividend yield	—%		—%			—	%
VAR Plan
Equity-Based Compensation
Schedule of stock options awards activity
		Plan			Weighted Average
		Options			Exercise Price
	Options outstanding at December 31, 2012		1,692,282		$	16.11
	Options granted		552,850			49.97
	Options exercised		(312,807	)		15.3
	Options cancelled or expired		(70,564	)		22.29
	Options outstanding at December 31, 2013		1,861,761		$	26.09
	Options granted		563,583			72.33
	Options exercised		(485,196	)		20.05
	Options cancelled or expired		(168,708	)		35.35
	Options outstanding at December 31, 2014		1,771,440		$	41.61
	Options exercisable at December 31, 2014		631,484		$	21.83
	Options vested and expected to vest at December 31, 2014		1,729,739		$	41.58
Schedule of weighted average assumptions used in the fair value calculation
		Year Ended		Year Ended		Year Ended
		December 31,		December 31,		December 31,
		2014		2013		2012
	Expected term (in years)	6.3		6.3		5.2 - 6.3
	Volatility	49%		50%		49%
	Risk-free interest rate	2.1% - 2.8%		1.0% - 2.3%		1.0% - 1.6%
	Dividend yield	—%		—%		—%
	Valuation Data:
	Weighted average fair value per share granted	$43.19		$24.73		$8.72

Members_Equity_and_Stockholder1

Members' Equity and Stockholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2014
Members' Equity and Stockholders' Equity
Summary of the Company's preferred members' interest account activity
			Balance
	Balance as of January 1, 2012		$	33,725
	Distributions			(9,000	)
	Exchanged(1)			(24,725	)
	Balance as of December 31, 2012		$	—
	-1	Balance exchanged from redeemable preferred members' interest to stockholders' equity upon consummation of the Reorganization

Unaudited_Quarterly_Financial_1

Unaudited Quarterly Financial Data (Tables)	12 Months Ended
	Dec. 31, 2014
Unaudited Quarterly Financial Data
Schedule of company's financial information for the eight most recent quarters
		Three Months Ended
		Dec. 31,			Sept. 30,			June 30,			Mar. 31,		Dec. 31,		Sept. 30,		June 30,		Mar. 31,
		2014			2014			2014			2014		2013		2013		2013		2013
	Revenue	$	91,226		$	83,730		$	80,238		$	72,777	$	68,031	$	59,558	$	56,809	$	51,117
	Operating expenses:
	Cost of revenue		35,607			33,260			32,047			29,108		26,102		22,936		21,768		19,821
	Sales & marketing		21,235			21,122			20,492			19,276		16,499		14,947		13,314		11,978
	Product development		11,379			9,870			9,275			7,777		6,464		5,685		5,060		4,555
	General and administrative		10,781			10,588			9,994			7,517		6,473		6,076		5,734		4,780
	Total operating expenses		79,002			74,840			71,808			63,678		55,538		49,644		45,876		41,134
	Income from operations		12,224			8,890			8,430			9,099		12,493		9,914		10,933		9,983
	Other (expense)/ income, net		(418	)		(50	)		(19	)		21		24		20		20		(12	)
	Income before income taxes		11,806			8,840			8,411			9,120		12,517		9,934		10,953		9,971
	Provision for income tax		4,774			3,562			3,550			4,202		4,660		3,740		4,090		4,406
	Net income		7,032			5,278			4,861			4,918		7,857		6,194		6,863		5,565
	Less:
	Undistributed earnings to participating shareholder		12			9			10			11		21		18		22		19
	Net income available to common shareholders	$	7,020		$	5,269		$	4,851		$	4,907	$	7,836	$	6,176	$	6,841	$	5,546
	Net income per basic share available to common shareholders:
	Undistributed	$	0.2		$	0.15		$	0.14		$	0.14	$	0.22	$	0.18	$	0.2	$	0.17
	Basic		0.2			0.15			0.14			0.14		0.22		0.18		0.2		0.17
	Net income per diluted share available to common shareholders:
	Undistributed		0.19			0.15			0.14			0.14		0.22		0.18		0.2		0.16
	Basic	$	0.19		$	0.15		$	0.14		$	0.14	$	0.22	$	0.18	$	0.2	$	0.16
	Weighted average shares outstanding:
	Basic		35,451,756			35,304,066			35,148,876			35,027,480		34,935,495		33,692,876		33,471,679		33,398,797
	Diluted		36,000,651			35,931,454			35,874,789			35,838,853		35,619,474		34,280,656		34,040,934		33,851,843

Summary_of_Operations_and_Sign3

Summary of Operations and Significant Accounting Policies (Details)	0 Months Ended
	Oct. 05, 2012
Reorganization
Shares of common stock exchanged with preferred and common membership interests in connection with Reorganization	28,338,281

Summary_of_Operations_and_Sign4

Summary of Operations and Significant Accounting Policies (Details 2) (USD $)	12 Months Ended		0 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Oct. 16, 2012	Sep. 25, 2013
Initial Public Offering & Follow-On Offering
Net proceeds from issuance of common stock in initial public offering		$81,811
Net proceeds from issuance of common stock	65,895
Initial Public Offering
Initial Public Offering & Follow-On Offering
Common stock sold by the entity (in shares)			5,175,000
Share price (in dollars per share)			$17
Net proceeds from issuance of common stock in initial public offering			81,811
Offering expenses			4,927
Over-Allotment Option
Initial Public Offering & Follow-On Offering
Common stock sold by the entity (in shares)			675,000
Follow-On Offering
Initial Public Offering & Follow-On Offering
Common stock sold by the entity (in shares)				1,150,000
Total shares in follow-on offering				5,290,000
Share price (in dollars per share)				$60
Common stock sold by shareholders (in shares)				4,140,000
Net proceeds from issuance of common stock				65,895
Offering expenses				$947
Exercise Option
Initial Public Offering & Follow-On Offering
Total shares in follow-on offering				690,000

Summary_of_Operations_and_Sign5

Summary of Operations and Significant Accounting Policies (Details 3) (USD $)	12 Months Ended	0 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Mar. 14, 2014	Dec. 31, 2013
Acquisition of Virtual Moment, LLC
Initial cash payment	$10,056
Allocation of preliminary aggregate purchase price to assets acquired and liabilities assumed
Goodwill	10,186		1,423
Virtual Moment, LLC
Acquisition of Virtual Moment, LLC
Total purchase price		12,416
Initial cash payment		10,056
Contingent consideration		2,360
Allocation of preliminary aggregate purchase price to assets acquired and liabilities assumed
Goodwill		8,763
Total assets acquired		836
Total liabilities assumed		-1,083
Total		12,416
Weighted average life of identifiable intangible assets		7 years
Professional fees	400
Contingent consideration
Minimum payment	1,000
Virtual Moment, LLC | Trade name
Allocation of preliminary aggregate purchase price to assets acquired and liabilities assumed
Intangible assets:		500
Virtual Moment, LLC | Customer relationships
Allocation of preliminary aggregate purchase price to assets acquired and liabilities assumed
Intangible assets:		2,800
Virtual Moment, LLC | Developed Technology
Allocation of preliminary aggregate purchase price to assets acquired and liabilities assumed
Intangible assets:		600
Virtual Moment, LLC | Other Noncurrent Liabilities
Contingent consideration
Contingent consideration	$2,560

Summary_of_Operations_and_Sign6

Summary of Operations and Significant Accounting Policies (Details 4)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
	customer	customer	customer
Total revenue | Credit concentration risk
Concentration of Credit and Contributor Risk
Number of customers	0	0	0
Credit card receivables | Credit concentration risk
Concentration of Credit and Contributor Risk
Number of customers	0	0	0
Accounts receivable | Credit concentration risk
Concentration of Credit and Contributor Risk
Number of customers	0	0	0
Contributor royalties | Contributor concentration risk
Concentration of Credit and Contributor Risk
Number of contributors	0	0	0

Summary_of_Operations_and_Sign7

Summary of Operations and Significant Accounting Policies (Details 5) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Restricted Cash
Restricted cash related to security deposits for leased office locations that expires in 2014	$182	$243
Restricted cash related to security deposits for leased office locations that expires in 2015 and 2024	1,829	2,017
Credit Card Receivables
Period for conversion of credit card receivable to cash, minimum	3 days
Period for conversion of credit card receivable to cash, maximum	5 days
Allowance for doubtful accounts:
Balance, beginning of period	625	249	256
Add: bad debt expense	565	519	326
Less: write-offs, net of recoveries and other adjustments	-159	-143	-333
Balance, end of period	1,031	625	249
Deferred Financing Fees
Deferred financing fees balance	0
Amortization of deferred financing costs	$0	$125	$41

Summary_of_Operations_and_Sign8

Summary of Operations and Significant Accounting Policies (Details 6)	12 Months Ended
	Dec. 31, 2014
Equipment
Property and Equipment
Useful lives	3 years
Furniture and fixtures
Property and Equipment
Useful lives	7 years
Software
Property and Equipment
Useful lives	3 years

Summary_of_Operations_and_Sign9

Summary of Operations and Significant Accounting Policies (Details 7) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Capitalized Internal Use Software
Gross capitalized costs	$1,204	$768	$605
Amortized capital software expense	253	194	154
Impairment of Long-Lived Assets
Impairment charges	$0	$0	$0

Recovered_Sheet1

Summary of Operations and Significant Accounting Policies (Details 8) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
	item
Revenue recognition
Number of subscription or usage based plans	3
Chargeback and sales refund allowances	$660	$425
Period of revenue recognition for undelivered elements	1 year
Estimated customer relationship period	3 years
Subscription plans | Minimum
Revenue recognition
Plan term	30 days
Subscription plans | Maximum
Revenue recognition
Plan term	1 year
On Demand plans
Revenue recognition
Plan term	1 year
Credit-pack plans
Revenue recognition
Plan term	1 year

Recovered_Sheet2

Summary of Operations and Significant Accounting Policies (Details 9) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Contributor Royalties and Internal Sales Commissions
Deferred royalty advances	$1,628	$3,419
Amortization of advance royalty	3,050	510
Maximum period over which internal sales commissions get deferred and recognized	12 months
Deferred internal sales commissions	2,995	2,005	2,023
Amortized internal sales commission expense	2,654	2,086	1,649
Prepaid expenses and other current assets
Contributor Royalties and Internal Sales Commissions
Deferred contributor royalties	1,997	2,908
Deferred internal sales commission	$784	$443

Recovered_Sheet3

Summary of Operations and Significant Accounting Policies (Details 10) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Product Development
Capitalized cost which is included in total capitalized software costs	$1,038	$163	$146
Advertising Costs
Cost of advertising and promoting entity's products	43,695	34,090	32,648
Deferred Rent
Deferred rent current balance	693	2,406
Deferred rent non-current balance	7,343	2,377
Deferred rent balance	$8,036	$4,783

Recovered_Sheet4

Summary of Operations and Significant Accounting Policies (Details 11)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Restricted stock units
Equity-Based Compensation
Vesting period	2 years
VAR Plan
Equity-Based Compensation
Shares of common stock to be purchased as stock options in exchange with VAR Plan awards granted and outstanding upon Reorganization	1,661,719
Expected dividend yield (as a percent)	0.00%	0.00%
2012 Plan
Equity-Based Compensation
Vesting period	3 years
2012 ESPP
Equity-Based Compensation
Vesting period	6 months

Recovered_Sheet5

Summary of Operations and Significant Accounting Policies (Details 12) (USD $)	3 Months Ended									12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Taxes
One-time non-cash tax benefit									$28,811
Net Income Per Share
Number of shares to purchase, the effect of which is included in diluted net income available to common stockholders/members										2,105,898	1,787,606	1,789,318
Anti-dilutive shares excluded from diluted net income available to common stockholders/members										519,672	193,040	106,500
Reconciliation of assumed exercised shares used in calculating basic and diluted net income (loss) share available to common shareholders/members
Basic (in shares)	35,451,756	35,304,066	35,148,876	35,027,480	34,935,495	33,692,876	33,471,679	33,398,797		35,234,768	33,878,494	23,785,299
Stock options and employee stock purchase plan shares										585,755	508,935	47,924
Unvested restricted stock awards										92,638	38,580
Diluted (in shares)	36,000,651	35,931,454	35,874,789	35,838,853	35,619,474	34,280,656	34,040,934	33,851,843		35,913,161	34,426,009	23,833,223

Recovered_Sheet6

Summary of Operations and Significant Accounting Policies (Details 13) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
									segment
Segment information
Number of operating segments									4
Number of reportable segments									1
Revenue	$91,226	$83,730	$80,238	$72,777	$68,031	$59,558	$56,809	$51,117	$327,971	$235,515	$169,616
Operating expenses	79,002	74,840	71,808	63,678	55,538	49,644	45,876	41,134	289,328	192,192	147,764
Income from operations	12,224	8,890	8,430	9,099	12,493	9,914	10,933	9,983	38,643	43,323	21,852
Content Business
Segment information
Revenue									324,533
Other Category
Segment information
Revenue									3,438
Operating Segments
Segment information
Operating expenses									179,701
Income from operations									148,270
Operating Segments | Content Business
Segment information
Operating expenses									172,026
Income from operations									152,507
Operating Segments | Other Category
Segment information
Operating expenses									7,675
Income from operations									-4,237
Corporate, Non-Segment
Segment information
Operating expenses									109,627
North America
Segment information
Revenue									121,896	84,754	59,963
United States | Total revenue | Geographic concentration
Segment information
Concentration risk percentage									33.00%	32.00%	32.00%
Europe
Segment information
Revenue									115,245	84,644	62,943
Rest of the world
Segment information
Revenue									$90,830	$66,117	$46,710

Recovered_Sheet7

Summary of Operations and Significant Accounting Policies (Details 14) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Comprehensive Income (Loss)
Foreign currency translation (loss) gain	($670)	$3
Unrealized gain on investments, net of tax	32	6
Accumulated other comprehensive (loss) income	($638)	$9	$0

ShortTerm_Investments_and_Fair2

Short-Term Investments and Fair Value Measurements (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Short term investments and fair value measurements
Amortized Cost	$54,848	$54,431
Unrealized Losses	-4	-2
Estimated Fair Market Value	54,844	54,429
Commercial Paper
Short term investments and fair value measurements
Amortized Cost	54,848	54,431
Unrealized Losses	-4	-2
Estimated Fair Market Value	$54,844	$54,429

ShortTerm_Investments_and_Fair3

Short-Term Investments and Fair Value Measurements (Details 2) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Contingent consideration
Change in fair value of contingent consideration	$200
Recurring Basis | Aggregate Fair Value
Assets:
Total assets measured at fair value	136,088	135,977
Liabilities:
Total liabilities measured at fair value	2,560
Recurring Basis | Aggregate Fair Value | WebDAM | Other Nonoperating Income (Expense)
Contingent consideration
Change in fair value of contingent consideration	200
Recurring Basis | Aggregate Fair Value | Acquisition Related Contingent Consideration
Liabilities:
Total liabilities measured at fair value	2,560
Recurring Basis | Aggregate Fair Value | Money Market Funds
Assets:
Total assets measured at fair value	81,244	81,548
Recurring Basis | Aggregate Fair Value | Commercial Paper
Assets:
Total assets measured at fair value	54,844	54,429
Recurring Basis | Level 1 | Aggregate Fair Value
Assets:
Total assets measured at fair value	81,244	81,548
Recurring Basis | Level 1 | Aggregate Fair Value | Money Market Funds
Assets:
Total assets measured at fair value	81,244	81,548
Recurring Basis | Level 2 | Aggregate Fair Value
Assets:
Total assets measured at fair value	54,844	54,429
Recurring Basis | Level 2 | Aggregate Fair Value | Commercial Paper
Assets:
Total assets measured at fair value	54,844	54,429
Recurring Basis | Level 3 | Aggregate Fair Value
Liabilities:
Total liabilities measured at fair value	2,560
Recurring Basis | Level 3 | Aggregate Fair Value | Acquisition Related Contingent Consideration
Liabilities:
Total liabilities measured at fair value	2,560
Recurring Basis | Level 3 | Aggregate Fair Value | Acquisition Related Contingent Consideration | WebDAM | Other Noncurrent Liabilities
Contingent consideration
Fair value of contingent consideration	$2,560

Goodwill_and_Intangible_Assets2

Goodwill and Intangible Assets (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Changes in goodwill
Balance at the beginning of the period	$1,423,000
Goodwill related to acquisition	8,763,000
Balance at the end of the period	10,186,000	1,423,000
Impairments of goodwill	0	0	0
Content Business
Changes in goodwill
Balance at the end of the period	1,423,000	1,423,000
Other Category
Changes in goodwill
Goodwill related to acquisition	8,763,000
Balance at the end of the period	$8,763,000

Goodwill_and_Intangible_Assets3

Goodwill and Intangible Assets (Details 2) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Amortizing intangible assets:
Gross Carrying Amount	$5,640	$1,729
Accumulated Amortization	-1,427	-876
Net Carrying Amount	4,934	853
Acquisition of digital content	-721
Amortization expense	551	187	243
Estimated amortization expense
2015	665
2016	665
2017	665
2018	665
2019	583
Thereafter	970
Customer relationships
Amortizing intangible assets:
Gross Carrying Amount	3,400	600
Accumulated Amortization	-921	-600
Net Carrying Amount	2,479
Customer relationships | Weighted Average
Amortizing intangible assets:
Weighted Average Life	6 years	4 years
Trade name
Amortizing intangible assets:
Gross Carrying Amount	900	400
Accumulated Amortization	-230	-119
Net Carrying Amount	670	281
Trade name | Weighted Average
Amortizing intangible assets:
Weighted Average Life	9 years	14 years
Developed Technology
Amortizing intangible assets:
Gross Carrying Amount	600
Accumulated Amortization	-68
Net Carrying Amount	532
Developed Technology | Weighted Average
Amortizing intangible assets:
Weighted Average Life	7 years
Contributor content
Amortizing intangible assets:
Gross Carrying Amount	450	450
Accumulated Amortization	-159	-127
Net Carrying Amount	291	323
Contributor content | Weighted Average
Amortizing intangible assets:
Weighted Average Life	15 years	15 years
Digital Content
Amortizing intangible assets:
Acquisition of digital content	721
Patents
Amortizing intangible assets:
Gross Carrying Amount	193	193
Accumulated Amortization	-30	-21
Net Carrying Amount	163	172
Patents | Weighted Average
Amortizing intangible assets:
Weighted Average Life	17 years	17 years
Domain name
Amortizing intangible assets:
Gross Carrying Amount	97	86
Accumulated Amortization	-19	-9
Net Carrying Amount	$78	$77
Domain name | Weighted Average
Amortizing intangible assets:
Weighted Average Life	14 years	15 years

Goodwill_and_Intangible_Assets4

Goodwill and Intangible Assets (Details 3) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Goodwill and Intangible Assets
Hypothetical increase (as a percent)	10.00%
Decrease in fair value (as a percent)	7.00%
Impairments of goodwill	$0	$0	$0

Property_and_Equipment_Details

Property and Equipment (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Property and Equipment
Property and equipment	$40,469	$27,365
Less accumulated depreciation	-13,725	-7,109
Property and equipment, net	26,744	20,256
Depreciation and amortization expense	7,366	3,683	2,397
Loss on disposal	367	0	0
Computer equipment and software
Property and Equipment
Property and equipment	24,179	14,108
Furniture and fixtures
Property and Equipment
Property and equipment	2,336	2,588
Leasehold improvements
Property and Equipment
Property and equipment	$13,954	$10,669

Accrued_Expenses_Details

Accrued Expenses (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Accrued Expenses
Compensation	$8,312	$6,379
Royalty tax withholdings	5,987	5,305
Non-income taxes	4,670	3,994
Professional fees	1,708	605
Marketing expenses	794	475
Construction costs	98	4,501
Other expenses	3,504	2,379
Total accrued expenses	$25,073	$23,638

Income_Taxes_Details

Income Taxes (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Geographical breakdown of income before income taxes
Domestic									$37,866	$43,375	$21,805
Foreign									311
Income before income taxes	11,806	8,840	8,411	9,120	12,517	9,934	10,953	9,971	38,177	43,375	21,805
Current:
Federal provision									19,362	949	4,329
State & local provision									1,502	98	1,233
Foreign provision									121
Deferred:
Federal provision (benefit)									-5,406	14,885	-29,772
State & local provision (benefit)									509	964	-1,528
Provision (benefit) for income taxes									16,088	16,896	-25,738
Provision for income taxes differs from statutory income tax rate
US income tax at federal statutory rate (as a percent)									35.00%	35.00%	35.00%
State and local taxes, net of federal benefit (as a percent)									4.20%	2.30%	2.80%
Foreign rate differential									-0.10%
Benefit from change in tax status (as a percent)											-131.80%
LLC income not subject to federal and state tax (as a percent)											-31.40%
Non-deductible - restricted stock									1.90%	1.30%	7.30%
Non-deductible - other									1.00%	0.40%	0.30%
Total provision (benefit) for income taxes (as a percent)									42.00%	39.00%	-117.80%
Non-cash tax benefit									28,811
Deferred tax assets:
Intangible amortization	11,283				13,235				11,283	13,235
Non-cash equity-based compensation	8,284				2,159				8,284	2,159
Deferred rent	2,918				1,784				2,918	1,784
Non-income tax reserve	2,679				2,376				2,679	2,376
Other liabilities	2,056				932				2,056	932
Deferred tax assets	27,220				20,486				27,220	20,486
Deferred tax liabilities:
Depreciation and amortization	-5,346				-4,335				-5,346	-4,335
Net deferred tax assets	21,874				16,151				21,874	16,151
Reconciliation of unrecognized tax benefits
Balance at the beginning of the period				1,500				805	1,500	805	60
Gross additions for tax positions for prior years										8	18
Gross additions for tax positions for current year										1,056	727
Gross reductions for tax positions of prior years										-369
Balance at the end of the period	1,500				1,500				1,500	1,500	805
Reserves for uncertain tax benefits									0	1,064	745
Impact on effective tax rate on recognition of unrecognized tax benefits	1,327								1,327
Unrecognized tax benefits, interest and penalties accrued									54	113
Amount of reclassification of between current deferred tax assets and prepaid and other current assets										$17,300

Term_Loan_Facility_Details

Term Loan Facility (Details) (USD $)	12 Months Ended			0 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Mar. 25, 2013	Dec. 24, 2012	Sep. 21, 2012
Term Loan Facility
Payment of term loan facility		$6,000	$6,000
Amortization of financing costs	0	125	41
Term Loan
Term Loan Facility
Amount borrowed						12,000
Payment of term loan facility				6,000	6,000
Amortization of financing costs		125
Deferred financing costs, net of accumulated amortization	$0

Commitments_and_Contingencies_1

Commitments and Contingencies (Details) (USD $)	0 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Mar. 21, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating leases
Rental expense inclusive of operating leases		$4,198	$2,997	$1,799
Letter of credit as a security deposit for the leased facilities		1,829
Aggregate future minimum lease payments		37,700
Term of lease	11 years
Future minimum lease payments under non-cancelable operating leases
2015		4,884
2016		4,345
2017		3,977
2018		3,924
2019		4,062
Thereafter		19,170
Total minimum lease payments		40,362
Other assets
Operating leases
Letter of credit collateralized as restricted cash		$1,829	$1,829

Commitments_and_Contingencies_2

Commitments and Contingencies (Details 2) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014
Commitments and Contingencies.
Purchase commitments	$1,400
Unconditional Purchase Obligations
Unconditional purchase obligations for contracts related to infrastructure services and contractual commitments for marketing services	9,400
Maturity of unconditional purchase obligations
2015	5,800
2016	3,200
2017	400
Indemnifications
Standard maximum aggregate obligation and liability to any one customer for all claims	10
Indemnification obligation	$0

Employee_Benefit_Plans_Details

Employee Benefit Plans (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Employee Benefit Plans
Annual discretionary employer matching contributions (as a percent)	3.00%
Employer matching contributions	$932	$615	$412

EquityBased_Compensation_Detai

Equity-Based Compensation (Details) (USD $)	12 Months Ended			0 Months Ended			3 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Apr. 24, 2014	Oct. 10, 2012	Jan. 01, 2014	Dec. 31, 2012
Weighted average assumptions used in fair value calculation
Weighted average fair value per share granted (in dollars per share)	$43.19	$24.73	$8.72				8.72
Additional disclosures
Non-cash stock-based compensation expense, net of estimated forfeitures	$23,768,000	$6,208,000	$10,385,000
Stock Option | Chief Executive Officer
Plan Options/Units
Options granted (in shares)				500,000
Weighted Average Exercise Price
Options granted (in dollars per share)				$80.94
Consideration period for awards granted				90 days
Closing price of the common stock equals or exceeds for 90 consecutive calendar days				$161.88
Service period for amortization of awards				6 years
Total fair value of the grant				21,630,000
Reversal of charge upon the completion of service period				0
2012 Plan
Equity-Based Compensation
Maximum number of shares/notional units available for issuance					6,750,000
Annual increase in shares available for issuance					1,500,000
Annual increase in the shares available for issuance as a percentage of common stock outstanding as of the last day of immediately preceding fiscal year					3.00%
Additional disclosures
Vesting period	3 years
2012 Plan | Stock Option
Equity-Based Compensation
Automatic increase (in shares)						1,052,129
2012 ESPP
Equity-Based Compensation
Maximum number of shares/notional units available for issuance					2,000,000
Annual increase in shares available for issuance					1,000,000
Annual increase in the shares available for issuance as a percentage of common stock outstanding as of the last day of immediately preceding fiscal year					3.00%
Maximum percentage of eligible compensation considered for payroll deduction to purchase the common stock					15.00%
Maximum purchase of shares by participating employees during each offering period					1,000
Percentage of lower of fair market value of common stock					85.00%
Number of shares issued under ESPP	133,289
Automatic increase (in shares)						1,000,000
Weighted average assumptions used in fair value calculation
Expected term	6 months	6 months					7 months 21 days
Volatility (as a percent)							49.00%
Risk-free interest rate (as a percent)							0.15%
Additional disclosures
Vesting period	6 months
Non-cash stock-based compensation expense, net of estimated forfeitures	778,000	588,000	134,000
2012 ESPP | Minimum
Equity-Based Compensation
Percentage of combined voting power of an employee considered for not granting rights to purchase stock					5.00%
Worth of stock for each calendar year considered for not granting rights to purchase stock					25,000
Weighted average assumptions used in fair value calculation
Volatility (as a percent)	49.00%	49.00%
Risk-free interest rate (as a percent)	0.08%	0.08%
2012 ESPP | Maximum
Weighted average assumptions used in fair value calculation
Volatility (as a percent)	52.00%	50.00%
Risk-free interest rate (as a percent)	0.60%	0.10%
VAR Plan
Equity-Based Compensation
Maximum number of shares/notional units available for issuance	3,000,000
Units designated under VAR Plan as a percentage of the company's overall interest	10.00%
Shares of common stock to be purchased as stock options in exchange with VAR Plan awards granted and outstanding upon Reorganization	1,661,719
Weighted average assumptions used in fair value calculation
Expected term	6 years 3 months 18 days
Volatility (as a percent)	49.00%	50.00%	49.00%
Dividend yield	0.00%	0.00%
Plan Options/Units
Options outstanding at the beginning of the period (in shares)	1,861,761	1,692,282				1,861,761
Options granted (in shares)	563,583	552,850
Options exercised (in shares)	-485,196	-312,807	0
Options cancelled or forfeited (in shares)	-168,708	-70,564
Options outstanding at the end of the period (in shares)	1,771,440	1,861,761	1,692,282				1,692,282
Vested and exercisable at the end of the period (in shares)	631,484
Options vested and expected to vest at the end of the period (in shares)	1,729,739
Weighted Average Exercise Price
Options outstanding at the beginning of the period (in dollars per unit)	$26.09	$16.11				26.09
Options granted (in dollars per share)	$72.33	$49.97
Options exercised (in dollars per share)	$20.05	$15.30
Options cancelled or forfeited (in dollars per share)	$35.35	$22.29
Options outstanding at the end of the period (in dollars per unit)	$41.61	$26.09	$16.11				16.11
Vested and exercisable at the end of the period (in dollars per share)	$21.83
Options vested and expected to vest at the end of the period (in dollars per shares)	$41.58
Intrinsic values
Intrinsic value of total stock options and notional units outstanding	48,700,000	107,100,000	16,700,000				16,700,000
Intrinsic value of total stock options vested and exercisable	29,800,000	38,900,000	4,600,000				4,600,000
Intrinsic value of total stock options vested and expected to vest	50,600,000	102,300,000	15,800,000				15,800,000
Intrinsic value of total stock options exercised	30,500,000	12,400,000
Additional disclosures
Shares of common stock to be purchased as stock options in exchange with VAR Plan awards granted and outstanding upon Reorganization	1,661,719
Non-cash stock-based compensation expense net of estimated forfeitures recognized in connection with one-time acceleration charge			2,412,000
Non-cash stock-based compensation expense, net of estimated forfeitures	9,737,000	4,507,000	618,000
Total unrecognized compensation charge related non-vested options	$29,100,000
VAR Plan | Minimum
Weighted average assumptions used in fair value calculation
Expected term		6 years 3 months 18 days	5 years 2 months 12 days
Risk-free interest rate (as a percent)	2.10%	1.00%	1.00%
Additional disclosures
Vesting period	1 year
VAR Plan | Maximum
Weighted average assumptions used in fair value calculation
Expected term			6 years 3 months 18 days
Risk-free interest rate (as a percent)	2.80%	2.30%	1.60%
Additional disclosures
Vesting period	6 years

EquityBased_Compensation_Detai1

Equity-Based Compensation (Details 2) (USD $)	12 Months Ended			0 Months Ended			48 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jun. 07, 2007	Apr. 05, 2010	Nov. 01, 2007	Dec. 31, 2011
Equity-Based Compensation
Recognized compensation charge	$23,768,000	$6,208,000	$10,385,000
2012 ESPP
Equity-Based Compensation
Recognized compensation charge	778,000	588,000	134,000
Weighted Average Fair Value
Vesting period of granted award	6 months
Restricted stock units
Vesting period of granted award	6 months
2012 Plan
Weighted Average Fair Value
Vesting period of granted award	3 years
Restricted stock units
Vesting period of granted award	3 years
VAR Plan
Equity-Based Compensation
Recognized compensation charge	9,737,000	4,507,000	618,000
Non-cash stock-based compensation expense net of estimated forfeitures recognized in connection with one-time acceleration charge			2,412,000
Restricted stock
Equity-Based Compensation
Recognized compensation charge	1,663,000	1,036,000	258,000
Liability re-classed to equity	5,147,000
Restricted stock units
Equity-Based Compensation
Recognized compensation charge	1,328,000
Non-cash stock-based compensation expense net of estimated forfeitures recognized in connection with one-time acceleration charge	10,262,000	77,000	0
Unrecognized compensation charge	42,700,000
Plan Options
Non-vested balance at the beginning of the period (in shares)	10,000
Units granted (in shares)	702,622	10,000
Units vested (in shares)	-7,975
Units cancelled or forfeited (in shares)	-51,750
Non-vested balance at the end of the period (in shares)	652,897	10,000
Weighted Average Fair Value
Non-vested balance at the beginning of the period (in dollars per share)	$47.17
Units granted (in dollars per share)	$82.34	$47.17
Units vested (in dollars per share)	$63.46
Units cancelled or forfeited (in dollars per share)	$89.71
Non-vested balance at the end of the period (in dollars per share)	$81.45	$47.17
Vesting period of granted award	2 years
Restricted stock units
Awarded (in shares)	702,622	10,000
Vesting period of granted award	2 years
Executive
Equity-Based Compensation
Membership interest (as a percent)				8.50%
Profits Interest Agreement | Executive
Equity-Based Compensation
Percentage of liquidation amount in excess of the specified amount entitled as per the agreement					4.00%
Specified liquidation amount beyond which sharing is applicable					300,000,000
Profit interest grant vesting period	6 years
Maximum percentage puttable annually of vested portion of the membership interest	10.00%
Compensation charge recorded	0		2,827,000
Profits Interest Agreement | Executive | Restricted stock
Equity-Based Compensation
Non-cash stock-based compensation expense net of estimated forfeitures recognized in connection with one-time acceleration charge			3,627,000
Accelerated vesting percentage of the unvested portion of stock award			50.00%
Profits Interest Agreement | Employee
Equity-Based Compensation
Membership interest (as a percent)						0.40%
Period of future services to be rendered against grant of membership interest							48 months
Recognized compensation charge	0	0
Non-cash stock-based compensation expense net of estimated forfeitures recognized in connection with one-time acceleration charge			509,000
Unrecognized compensation charge	$0

EquityBased_Compensation_Detai2

Equity-Based Compensation (Details 3) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Non-cash equity-based compensation expense related to the 2012 Plan and 2012 ESPP
Total	$23,768	$6,208	$10,385
Cost of revenue
Non-cash equity-based compensation expense related to the 2012 Plan and 2012 ESPP
Total	1,283	437	219
Sales and marketing
Non-cash equity-based compensation expense related to the 2012 Plan and 2012 ESPP
Total	3,912	1,296	783
Product development
Non-cash equity-based compensation expense related to the 2012 Plan and 2012 ESPP
Total	7,597	1,493	1,696
General and administrative
Non-cash equity-based compensation expense related to the 2012 Plan and 2012 ESPP
Total	$10,976	$2,982	$7,687

Members_Equity_and_Stockholder2

Members' Equity and Stockholders' Equity (Details) (USD $)	0 Months Ended		12 Months Ended
In Thousands, except Share data, unless otherwise specified	Feb. 28, 2008	Jun. 06, 2007	Dec. 31, 2014	Dec. 31, 2012	Dec. 31, 2013
			Vote
Redeemable Preferred Members' Equity
Percentage of common members' equity sold by sole shareholder to outside investors		25.00%
Aggregate purchase price for which common members' equity is sold		$60,000
Purchase price adjustment paid by outside investors to the selling member as a result of the company achieving an EBITDA Target	1,800
Preferred members' interest account activity
Balance at the beginning of the period				33,725
Distributions				-9,000
Exchanged				($24,725)
Common Stock
Number of votes for each share			1
Number of authorized shares of common stock			200,000,000		200,000,000
Common stock, par value (in dollars per share)			$0.01		$0.01
Preferred Stock
Preferred stock, authorized shares					5,000,000
Preferred stock, par value					$0.01

Members_Equity_and_Stockholder3

Members' Equity and Stockholders' Equity (Details 2) (USD $)	12 Months Ended		15 Months Ended	0 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013	Jun. 07, 2007	Dec. 31, 2014
Distributions to Members
Cash distributions made	$36,000	$28,575	$0
Executive
Distributions to Members
Membership interest (as a percent)				8.50%
Common Membership Capital | Executive
Distributions to Members
Assets to be distributed upon dissolution event of the company (as a percent)					75.00%
Membership interest (as a percent)					8.50%
Amount multiplied by vested percentage of membership interest considered for determining limit of distribution to members upon dissolution					$120,000
Preferred members
Distributions to Members
Assets to be distributed upon dissolution event of the company (as a percent)					25.00%

Related_Parties_Details

Related Parties (Details) (Pixel Holdings Inc., USD $)	0 Months Ended
In Thousands, unless otherwise specified	Sep. 18, 2013
Pixel Holdings Inc.
Related parties
Assumed liability related to related party transaction	$208

Unaudited_Quarterly_Financial_2

Unaudited Quarterly Financial Data (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Unaudited Quarterly Financial Data
Revenue	$91,226	$83,730	$80,238	$72,777	$68,031	$59,558	$56,809	$51,117	$327,971	$235,515	$169,616
Operating expenses:
Cost of revenue	35,607	33,260	32,047	29,108	26,102	22,936	21,768	19,821	130,022	90,627	64,676
Sales & marketing	21,235	21,122	20,492	19,276	16,499	14,947	13,314	11,978	82,125	56,738	45,107
Product development	11,379	9,870	9,275	7,777	6,464	5,685	5,060	4,555	38,301	21,764	16,330
General and administrative	10,781	10,588	9,994	7,517	6,473	6,076	5,734	4,780	38,880	23,063	21,651
Total operating expenses	79,002	74,840	71,808	63,678	55,538	49,644	45,876	41,134	289,328	192,192	147,764
Income from operations	12,224	8,890	8,430	9,099	12,493	9,914	10,933	9,983	38,643	43,323	21,852
Other (expense) income, net	-418	-50	-19	21	24	20	20	-12	-466	52	-47
Income before income taxes	11,806	8,840	8,411	9,120	12,517	9,934	10,953	9,971	38,177	43,375	21,805
Provision for income tax	4,774	3,562	3,550	4,202	4,660	3,740	4,090	4,406	16,088	16,896	-25,738
Net income	7,032	5,278	4,861	4,918	7,857	6,194	6,863	5,565	22,089	26,479	47,543
Less:
Undistributed earnings (loss) to participating shareholder	12	9	10	11	21	18	22	19	42	80	-4,086
Net income available to common shareholders	$7,020	$5,269	$4,851	$4,907	$7,836	$6,176	$6,841	$5,546	$22,047	$26,399	$42,629
Net income per basic share available to common members:
Undistributed (in dollars per share)	$0.20	$0.15	$0.14	$0.14	$0.22	$0.18	$0.20	$0.17	$0.63	$0.78	$0.65
Basic (in dollars per share)	$0.20	$0.15	$0.14	$0.14	$0.22	$0.18	$0.20	$0.17	$0.63	$0.78	$1.79
Net income per diluted share available to common members:
Undistributed (in dollars per share)	$0.19	$0.15	$0.14	$0.14	$0.22	$0.18	$0.20	$0.16	$0.61	$0.77	$0.66
Diluted (in dollars per share)	$0.19	$0.15	$0.14	$0.14	$0.22	$0.18	$0.20	$0.16	$0.61	$0.77	$1.79
Weighted average shares outstanding:
Basic (in shares)	35,451,756	35,304,066	35,148,876	35,027,480	34,935,495	33,692,876	33,471,679	33,398,797	35,234,768	33,878,494	23,785,299
Diluted (in shares)	36,000,651	35,931,454	35,874,789	35,838,853	35,619,474	34,280,656	34,040,934	33,851,843	35,913,161	34,426,009	23,833,223

Subsequent_Events_Details

Subsequent Events (Details) (USD $)	12 Months Ended	0 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Jan. 19, 2015	Jan. 22, 2015
Subsequent events
Purchase price paid in cash	$10,056
Subsequent event | Rex Features
Subsequent events
Total purchase price		33,000
Purchase price paid in cash		31,700
RSU's granted to employee's of acquiree		1,300
Subsequent event | Arbour Interactive Inc
Subsequent events
Purchase price paid in cash			31,700
RSU's granted to employee's of acquiree			5,000
Payable to acquiree upon achievement of revenue based targets			$10,000