Consolidated Stockholders' Equity Statement (Unaudited) (USD $) In Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income (Loss), Translation Component of Equity	Accumulated Other Comprehensive Income (Loss), Pension and Postretirement Liability
Stockholders' equity attributable to parent, beginning balance at Dec. 31, 2010	$ 638,515	$ 503	$ 595,519	$ 171,568	$ (120,156)	$ 32,095	$ (41,014)
Shares, issued, beginning balance at Dec. 31, 2010		50,335			3,290
Net income	56,615			56,615
Foreign currency translation	30,358					30,358
Comprehensive income	86,973
Exercise of stock options, net of tax withholding forfeitures	3,993		(1,816)		5,809
Exercise of stock options, net of tax withholding forfeitures, shares					251
Conversion of restricted stock units into common stock, net of tax withholding forfeitures	(1,725)		(4,531)		2,806
Conversion of restricted stock units into common stock, net of tax withholding forfeitures, shares					143
Share-based compensation	7,512		7,512
Dividends ($0.10 per share)	(4,801)			(4,801)
Stockholders' equity attributable to parent, ending balance at Jul. 03, 2011	$ 730,467	$ 503	$ 596,684	$ 223,382	$ (111,541)	$ 62,453	$ (41,014)
Shares, issued, ending balance at Jul. 03, 2011		50,335			2,896