Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities:
Net income	$ 19,125	$ 11,487
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation	9,640	8,699
Amortization	1,158	927
Deferred income taxes	3,293	1,719
Asset impairment	0	39
Thailand flood insurance recovery	(550)	0
Gain on the sale of property, plant and equipment	393	(2)
Stock-based compensation expense	1,432	1,553
Excess tax shortfall (benefits) from stock-based compensation	(426)	(114)
Changes in operating assets and liabilities:
Accounts receivable	94,818	40,218
Inventories	(46,512)	3,141
Prepaid expenses and other assets	(1,029)	6,129
Accounts payable	(21,147)	(8,786)
Accrued liabilities	1,189	(12,609)
Income taxes	(650)	(3,753)
Net cash provided by operations	60,734	48,648
Cash flows from investing activities:
Proceeds from sales and redemptions of investments	6	25
Additions to property, plant and equipment	(14,512)	(6,703)
Proceeds from the sale of property, plant and equipment	106	22
Additions to purchased software	(104)	(217)
Thailand flood property insurance proceeds	550	0
Other	363	0
Net cash used in investing activities	(13,591)	(6,873)
Cash flows from financing activities:
Proceeds from stock options exercised	5,811	3,321
Excess tax (shortfall) benefits from stock-based compensation	426	114
Principal payments on capital lease obligations	(132)	(112)
Share repurchases	(4,537)	(12,078)
Net cash provided by (used in) financing activities	1,568	(8,755)
Effect of exchange rate changes	(72)	(745)
Net increase (decrease) in cash and cash equivalents	48,639	32,275
Cash and cash equivalents at beginning of year	345,555	384,579
Cash and cash equivalents at end of period	$ 394,194	$ 416,854