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

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- Definition Represents the shares of stock exchanged with membership interest of the entity in connection with the Reorganization. + References No definition available. + Details
Name: | sstk_NumberOfSharesOfStockExchangedUponReorganization
Namespace Prefix: | sstk_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_ReorganizationsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration