Consolidated Statements of Comprehensive Earnings (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jul. 01, 2012	Jun. 30, 2013	Jul. 01, 2012
Consolidated Statements of Comprehensive Earnings [Abstract]
Net earnings	$ 36,480	$ 43,427	$ 29,809	$ 40,848
Other comprehensive earnings (loss):
Foreign currency translation adjustments	(14,525)	(30,173)	(21,873)	(7,907)
Net gains on cash flow hedging activities, net of tax	1,606	16,252	12,382	6,963
Reclassifications to earnings, net of tax:
Net gains on cash flow hedging activities	(498)	(1,492)	(1,040)	(2,756)
Unrecognized pension and postretirement amounts	3,717	0	4,972	0
Total other comprehensive loss, net of tax	(9,700)	(15,413)	(5,559)	(3,700)
Total comprehensive earnings	$ 26,780	$ 28,014	$ 24,250	$ 37,148