Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
Sep. 29, 2012	Oct. 01, 2011
Operating activities:
Net income	$ 57,569	$ 84,085
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	20,862	20,292
Amortization	7,259	7,763
Share-based compensation expense	8,030	5,784
Other	515	(550)
Changes in operating assets and liabilities:
Trade accounts receivable and notes receivable	(4,290)	15,684
Inventories	(9,623)	(4,204)
Accounts payable and accrued liabilities	1,528	(14,838)
Other current assets	(1,488)	360
Income taxes payable and refundable income taxes	(546)	(851)
Other	(2,995)	(755)
Net cash provided by operating activities	76,821	112,770
Investing activities:
Acquisition of property, plant and equipment	(39,116)	(24,146)
Purchase of short-term investments	(7,996)
Other	(2,777)	(604)
Net cash used in investing activities	(49,889)	(24,750)
Financing activities:
Issuance of common stock	4,689	5,656
Other	909	(1,085)
Net cash provided by financing activities	5,598	4,571
Effect of exchange rate changes on cash and cash equivalents	1,707	492
Increase in cash and cash equivalents	34,237	93,083
Cash and cash equivalents at beginning of period	273,593	133,954
Cash and cash equivalents at end of period	$ 307,830	$ 227,037

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.