Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Cash flows from operating activities
Net income	$ 30,445	$ 314,990	$ 423,075
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	76,933	76,986	66,495
Non-cash losses (gains) on sale of fixed assets, net	264	(36,333)	(31,137)
Asset impairment charges	0	0	11,922
Deferred taxes	(23,459)	44,233	(164,590)
Loss from foundry arrangement	10,628	0	0
Impairment of receivable from foundry supplier	6,495	0	0
Other non-cash losses (gains), net	1,037	(6,240)	(13,225)
Recovery of doubtful accounts receivable	(18)	(14)	(76)
Accretion of interest on long-term debt	1,017	784	650
Stock-based compensation expense	72,442	68,125	57,445
Excess tax benefit on stock-based compensation	(1,264)	(2,650)	(3,088)
Non-cash acquisition-related and other charges	2,934	0	0
Changes in operating assets and liabilities, net of acquisitions
Accounts receivable	24,362	19,787	(37,510)
Inventories	10,250	(100,695)	(60,132)
Current and other assets	32,406	(15,932)	(31,423)
Trade accounts payable	38,644	(60,113)	16,031
Accrued and other liabilities	(66,255)	(47,055)	111,112
Income taxes payable	2,251	(15,639)	(68,112)
Deferred income on shipments to distributors	(18,394)	(19,088)	22,017
Net cash provided by operating activities	200,718	221,146	299,454
Cash flows from investing activities
Acquisitions of fixed assets	(38,289)	(84,564)	(99,808)
Proceeds from the sale of business	26,908	1,597	19,023
Proceeds from the sale of fixed assets	0	47,250	652
Acquisition of businesses, net of cash acquired	(43,499)	(20,256)	0
Acquisitions of intangible assets	(4,000)	(4,000)	(5,458)
Purchases of marketable securities	0	0	(20,567)
Sales or maturities of marketable securities	4,450	16,739	39,388
Investment in private companies	(2,500)	0	(3,936)
Decrease (increase) in long-term restricted cash	5,000	0	(5,000)
Net cash used in investing activities	(51,930)	(43,234)	(75,706)
Cash flows from financing activities
Principal payments on debt and capital leases	0	(85)	(11,106)
Repayment of bank lines of credit	0	0	(80,000)
Repurchases of common stock	(179,579)	(304,236)	(89,216)
Proceeds from issuance of common stock	15,537	28,746	29,911
Tax payments related to shares withheld for vested restricted stock units	(19,830)	(73,286)	(11,139)
Excess tax benefit on stock-based compensation	1,264	2,650	3,088
Net cash used in financing activities	(182,608)	(346,211)	(158,462)
Effect of exchange rate changes on cash and cash equivalents	(2,241)	(3,725)	(1,340)
Net (decrease) increase in cash and cash equivalents	(36,061)	(172,024)	63,946
Cash and cash equivalents at beginning of the period	329,431	501,455	437,509
Cash and cash equivalents at end of the period	293,370	329,431	501,455
Supplemental cash flow disclosures:
Interest paid	242	1,857	2,864
Income taxes paid	16,064	31,986	14,993
Supplemental non-cash investing and financing activities disclosures
Decreases in accounts payable related to fixed assets purchases	(803)	(21,000)	(841)
Decreases in liabilities related to intangible assets purchases	(4,000)	(4,000)	(4,000)
Additional consideration payable related to acquisition	$ 18,225	$ 0	$ 0