CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2017	Mar. 27, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 40,170	$ 50,868
Other comprehensive income, net of tax:
Foreign currency translation, net of tax of $(7,089) and $(4,177)	46,982	20,455
Pension and other postretirement benefit plans adjustment, net of tax of $(532) and $(629)	890	1,238
Derivatives qualifying as hedges, net of tax of $(555) and $(379)	1,728	1,480
Other comprehensive income, net of tax:	49,600	23,173
Comprehensive income	89,770	74,041
Less: comprehensive income attributable to noncontrolling interest	0	158
Comprehensive income attributable to common shareholders	$ 89,770	$ 73,883