Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash flows from operating activities
Net income	$ 22,168	$ 38,652
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	42,042	43,747
Deferred income taxes	12,768	(4,439)
Write-off of equipment deposit	0	1,730
Realized gain on sales of marketable securities	0	(385)
Gain from foundry arrangements	0	(95)
Realized gain on sales of investments in privately-held companies	(1,317)	0
Gain on sale of assets	(1,998)	0
Curtailment gain	(652)	0
Accretion of interest on long-term debt	1,297	1,313
Share-based compensation expense	38,943	45,812
Excess tax benefit on share-based compensation	(1,326)	(1,441)
Non-cash acquisition-related and other charges, net	(6,052)	(2,333)
Changes in operating assets and liabilities, net of acquisitions
Accounts receivable	19,877	(7,256)
Inventories	10,773	18,551
Current and other assets	6,171	21,579
Trade accounts payable	(22,817)	12,330
Accrued and other liabilities	(22,523)	(32,050)
Income taxes payable	(3,778)	810
Deferred income on shipments to distributors	3,084	6,094
Net cash provided by operating activities	96,660	142,619
Cash flows from investing activities
Acquisitions of fixed assets	(25,974)	(37,815)
Proceeds from sale of assets	20,421	0
Proceeds from sales of investments in privately-held companies	3,817	0
Sales of marketable securities	0	3,071
Proceeds from Sale of Property, Plant, and Equipment	770	0
Acquisition of businesses, net of cash acquired	0	139,580
Acquisitions of intangible assets	(1,544)	(2,560)
Net cash used in investing activities	(2,510)	(176,884)
Cash flows from financing activities
Proceeds from issuance of debt	0	90,000
Principal repayments on debt	20,087	1,353
Repurchases of common stock	(11,985)	(108,480)
Payment of dividends	(50,239)	0
Proceeds from issuance of common stock	13,753	13,241
Tax payments related to shares withheld for vested restricted stock units	(14,749)	(15,709)
Excess tax benefit on share-based compensation	1,326	1,441
Net cash used in financing activities	(81,981)	(20,860)
Effect of exchange rate changes on cash and cash equivalents	(365)	(1,869)
Net increase (decrease) in cash and cash equivalents	11,804	(56,994)
Cash and cash equivalents at beginning of the period	206,937	276,881
Cash and cash equivalents at end of the period	$ 218,741	$ 219,887