Condensed Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 28, 2012	Sep. 30, 2011	Sep. 28, 2012	Sep. 30, 2011
Net earnings	$ 14,982	$ 12,965	$ 40,864	$ 41,184
Foreign currency translation adjustments	2,961	(6,088)	3,487	(1,386)
Change in unrealized loss on derivative instruments, net of tax expense of $0 and $81, and $0 and $231, respectively	0	135	0	378
Pension plan adjustments, net of tax expense of $834 and $288, and $2,503 and $866, respectively	1,361	471	4,084	1,413
Comprehensive Income (Loss)	$ 19,304	$ 7,483	$ 48,435	$ 41,589