CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 27, 2016	Mar. 29, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 50,868	$ 38,570
Other comprehensive income (loss), net of tax:
Foreign currency translation, net of tax of $(4,177) and $23,438	20,455	(83,090)
Pension and other postretirement benefit plans adjustment, net of tax of $(629) and $(886)	1,238	1,906
Derivatives qualifying as hedges, net of tax of $(379) and $(25)	1,480	44
Other comprehensive income (loss), net of tax:	23,173	(81,140)
Comprehensive income (loss)	74,041	(42,570)
Less: comprehensive income attributable to non-controlling interest	158	279
Comprehensive income (loss) attributable to common shareholders	$ 73,883	$ (42,849)