Fair Value Measurements and Other Long-term Investments	6 Months Ended
Fair Value Measurements and Other Long-term Investments	Jun. 30, 2019
Fair Value Disclosures [Abstract]
Fair Value Measurements and Other Long-term Investments	Fair Value Measurements and Other Long-term Investments Fair Value Measurements The Company had no assets or liabilities requiring fair value hierarchy disclosures as of June 30, 2019 or December 31, 2018. Other Fair Value Measurements Cash, accounts receivable, restricted cash, accounts payable and accrued expenses carrying amounts approximate fair value because of the short-term nature 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 the Company is required to evaluate the non-financial asset for impairment, whether due to certain triggering events or because annual impairment testing is required, a resulting asset impairment would require that the non-financial asset be recorded at fair value. Other Long-term Investments Investment in ZCool Technologies Limited (“ZCool”) On January 4, 2018, the Company invested $15.0 million in convertible preferred shares issued by ZCool (the “Preferred Shares”), which is equivalent to a 25% fully diluted equity ownership interest. ZCool’s primary business is the operation of an e-commerce platform in China whereby customers can pay to license content contributed by creative professionals. ZCool has been the exclusive distributor of Shutterstock creative content in China since 2014. ZCool is a variable interest entity that is not consolidated because the Company is not the primary beneficiary. The Preferred Shares are not deemed to be in-substance common stock and will be accounted for using the measurement alternative for equity investments with no readily determinable fair value. The Preferred Shares will be reported at cost, adjusted for impairments or any observable price changes in ordinary transactions with identical or similar investments issued by ZCool. As of June 30, 2019 and December 31, 2018, the Company’s total investment in ZCool is approximately $15.0 million, which is reported within other assets on the Consolidated Balance Sheet.

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.