Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Consolidated Statements Of Operations [Abstract]
Revenue	$ 320,972	$ 242,890
Costs and expenses:
Cost of revenue	90,122	67,662
Research and development	186,876	71,760
Sales and marketing	56,837	40,156
General and administrative	72,715	27,110
Total costs and expenses	406,550	206,688
Income (loss) from operations	(85,578)	36,202
Interest income	1,291	518
Other (expense), net	(1,142)	(736)
Income (loss) before income taxes	(85,429)	35,984
(Provision for) / benefit from income taxes	78	(19,226)
Net income (loss)	(85,351)	16,758
Net income attributable to participating securities		15,416
Net income (loss) attributable to common stockholders	$ (85,351)	$ 1,342
Net income (loss) per share attributable to common stockholders
Basic	$ (0.12)	$ 0.01
Diluted	$ (0.12)	$ 0.00
Weighted average common shares used to compute net income (loss) per share attributable to common stockholders:
Basic	707,693	258,168
Diluted	707,693	358,312