Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Current assets
Cash and cash equivalents	$ 255,477	$ 276,881
Short-term investments	0	2,181
Accounts receivable, net of allowance for doubtful accounts of $1,916 and $1,926, respectively	194,909	206,757
Inventories	247,379	274,967
Prepaids and other current assets	95,078	92,234
Total current assets	792,843	853,020
Fixed assets, net of accumulated depreciation of $1,314,181 and $1,300,722, respectively	191,242	184,983
Goodwill	108,599	108,240
Intangible assets, net of accumulated amortization of $49,464 and $47,747, respectively	26,406	28,116
Other assets	160,232	178,167
Total assets	1,279,322	1,352,526
Current liabilities
Trade accounts payable	92,933	95,872
Accrued and other liabilities	134,123	155,406
Deferred income on shipments to distributors	38,766	42,594
Total current liabilities	265,822	293,872
Other long-term liabilities	109,952	120,727
Total liabilities	375,774	414,599
Commitments and contingencies (Note 8)
Stockholders’ equity
Preferred stock; par value $0.001; Authorized: 5,000 shares; no shares issued and outstanding	0	0
Common stock; par value $0.001; Authorized: 1,600,000 shares; Shares issued and outstanding: 420,672 at March 31, 2014 and 425,390 at December 31, 2013	421	425
Additional paid-in capital	801,735	838,908
Accumulated other comprehensive income	13,429	12,797
Retained earnings	87,963	85,797
Total stockholders’ equity	903,548	937,927
Total liabilities and stockholders’ equity	$ 1,279,322	$ 1,352,526