Acquisitions and Dispositions - Additional Information (Details) - USD ($) $ in Thousands			1 Months Ended			12 Months Ended
	Aug. 08, 2014	Jun. 20, 2013	Jul. 31, 2015	Aug. 31, 2014	Mar. 31, 2013	Dec. 31, 2015	Dec. 31, 2014	Aug. 31, 2015	Dec. 31, 2013
Business Acquisition [Line Items]
Purchase consideration, cash						$ 7,561	$ 1,945
Goodwill						$ 10,358	10,358		$ 347,382
Customer Relationships
Business Acquisition [Line Items]
Weighted average useful life						3 years
License Agreement
Business Acquisition [Line Items]
Weighted average useful life						5 years
Artist Relationships
Business Acquisition [Line Items]
Weighted average useful life						10 years
Saatchi Online, Inc.
Business Acquisition [Line Items]
Purchase consideration, cash	$ 4,800
Purchase consideration, common stock, shares	1,049,959
Purchase consideration, common stock, value	$ 10,300
Hold back to satisfy post-closing indemnification, value	$ 1,700					$ 600
Hold back to satisfy post-closing indemnification paid to company								$ 900
Hold back liability to satisfy post-closing indemnification released to the selling stockholders								$ 200
Goodwill							10,358
Society6
Business Acquisition [Line Items]
Purchase consideration, cash		$ 76,100
Purchase consideration, common stock, shares		464,576
Purchase consideration, common stock, value		$ 18,200
Hold back to satisfy post-closing indemnification, value		$ 7,900
Goodwill							76,676
Hold back to satisfy post-closing indemnification, shares		122,638
Cash paid for previous acquisition			$ 7,400
Shares issued in acquisition			122,638
Society6 | Technology
Business Acquisition [Line Items]
Weighted average useful life		4 years
Society6 | Artist Relationships
Business Acquisition [Line Items]
Weighted average useful life		3 years
Society6 | Non-compete agreements
Business Acquisition [Line Items]
Weighted average useful life		3 years
Society6 | Trade Names
Business Acquisition [Line Items]
Weighted average useful life		10 years
Creativebug
Business Acquisition [Line Items]
Goodwill							$ 4,459
Total purchase consideration					$ 8,000
Hold back to satisfy post-closing indemnification, shares					800,000
Hold back to satisfy post-closing indemnification, value, paid in next nine months					$ 400
First holdback period					9 months
Second holdback period					18 months
Common Stock
Business Acquisition [Line Items]
Stockholders equity, reverse stock split description				1-for-5
Shares issued in acquisition						123,000