Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands		3 Months Ended
		Apr. 01, 2016	Apr. 03, 2015
Statement of Comprehensive Income [Abstract]
Net earnings		$ 9,777	$ 12,749
Foreign currency translation adjustments		7,213	(5,460)
Unrealized (loss) gain on derivative instruments, net of tax benefit (expense) of $337 and $(45), respectively	[1]	(557)	75
Change in pension and post-retirement benefit plan liabilities, net of tax expense of $1,213 and $961, respectively	[2]	2,005	1,588
Other Comprehensive Income (Loss)		8,661	(3,797)
Comprehensive Income		$ 18,438	$ 8,952

[1] See Note 6, Derivative Financial Instruments, for additional information regarding our derivative instruments.

[2] These accumulated other comprehensive income components are included in the computation of net periodic pension cost. (See Note 9, Pension Plans for additional information.)