Condensed Consolidated Cash Flow Statements (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jul. 01, 2012	Jul. 03, 2011
Cash flows from operating activities:
Net income	$ 66,665	$ 56,615
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	23,659	25,111
Share-based compensation	6,339	5,716
Provision for inventory obsolescence	3,056	1,160
Pension funding less than pension expense	883	1,820
Tax benefit related to share-based compensation	(3,909)	(1,796)
Income from equity method investment	(4,701)	(7,717)
Deferred income tax expense (benefit)	(10,368)	176
Changes in operating assets and liabilities, net of the effects of currency exchange rate changes and acquired businesses:
Receivables	(27,553)	(50,623)
Inventories	13,418	(18,616)
Accounts payable	(10,823)	19,282
Accrued liabilities	(23,754)	(14,535)
Accrued taxes	3,566	12,864
Other assets	(1,832)	1,310
Other liabilities	(4,084)	383
Net cash provided by operating activities	30,562	31,150
Cash flows from investing activities:
Capital expenditures	(21,753)	(14,883)
Cash used to acquire businesses, net of cash acquired	(587)	(52,418)
Proceeds from disposal of tangible assets	353	1,222
Net cash used for investing activities	(21,987)	(66,079)
Cash flows from financing activities:
Payments under share repurchase program	(50,000)
Cash dividends paid	(4,712)	(4,718)
Payments under borrowing arrangements	(600)
Debt issuance costs		(3,296)
Proceeds from exercise of stock options	2,198	4,554
Proceeds from settlement of derivatives	2,733
Tax benefit related to share-based compensation	3,909	1,796
Net cash used for financing activities	(46,472)	(1,664)
Effect of foreign currency exchange rate changes on cash and cash equivalents	(7,541)	7,252
Decrease in cash and cash equivalents	(45,438)	(29,341)
Cash and cash equivalents, beginning of period	382,716	358,653
Cash and cash equivalents, end of period	$ 337,278	$ 329,312