Condensed Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Income Statement [Abstract]
Net revenue	$ 355,534	$ 347,816	$ 692,895	$ 676,959
Cost of revenue	194,296	199,891	391,667	397,729
Research and development	70,082	67,362	139,834	135,670
Selling, general and administrative	64,783	58,912	128,862	122,489
Acquisition-related charges	1,497	1,759	3,125	4,014
Restructuring (credits) charges	(1,583)	582	(1,807)	43,396
Recovery of receivables from foundry suppliers	0	(83)	0	(522)
Gain on sale of assets	0	0	0	(4,430)
Settlement charges	0	0	0	21,600
Total operating expenses	329,075	328,423	661,681	719,946
Income (loss) from operations	26,459	19,393	31,214	(42,987)
Interest and other expense, net	(1,202)	(738)	(1,125)	(386)
Income (loss) before income taxes	25,257	18,655	30,089	(43,373)
(Provision for) benefit from income taxes	(6,021)	(5,679)	(8,687)	8,682
Net income (loss)	$ 19,236	$ 12,976	$ 21,402	$ (34,691)
Net income (loss) per share	$ 0.05	$ 0.03	$ 0.05	$ (0.08)
Weighted-average shares used in basic net income (loss) per share calculations	421,090	428,239	423,233	428,617
Net income (loss) per share	$ 0.05	$ 0.03	$ 0.05	$ (0.08)
Weighted-average shares used in diluted net income (loss) per share calculations	422,834	430,536	424,876	428,617