CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Statement
Revenue	$ 200,581	$ 249,900	$ 223,146
Cost of revenue:
Platform commissions, royalties and other	75,239	95,682	80,735
Impairment of prepaid royalties and minimum guarantees (including impairment of prepaid royalties and minimum guarantees paid to a related party of $9,866, $0, and $0 as of December 31, 2016, December 31, 2015, and December 31, 2014, respectively)	30,107	2,502	257
Impairment and amortization of intangible assets (including impairment and amortization of intangible assets acquired from a related party of $5,000, $0, and $0 as of December 31, 2016, December 31, 2015, and December 31, 2014, respectively)	14,792	9,553	4,767
Total cost of revenue	120,138	107,737	85,759
Gross profit	80,443	142,163	137,387
Operating expenses:
Research and development	81,879	72,856	64,284
Sales and marketing	48,050	48,240	45,076
General and administrative	30,225	26,092	25,019
Amortization of intangible assets	0	201	508
Restructuring charge	2,279	1,075	435
Total operating expenses	162,433	148,464	135,322
(Loss)/income from operations	(81,990)	(6,301)	2,065
Interest and other income (expense), net:
Interest income / (expense)	(2)	49	30
Other expense	(5,749)	(792)	(1,502)
Interest and other expense, net	(5,751)	(743)	(1,472)
(Loss)/income before income taxes	(87,741)	(7,044)	593
Income tax benefit (provision)	301	(141)	7,555
Net (loss)/income	$ (87,440)	$ (7,185)	$ 8,148
Net income/(loss) per common share - basic and diluted
Basic	$ (0.66)	$ (0.06)	$ 0.09
Diluted	$ (0.66)	$ (0.06)	$ 0.08
Weighted average common shares outstanding - basic and diluted:
Basic	131,804	118,775	91,826
Diluted	131,804	118,775	96,922