CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 60,852	$ 54,957	$ 144,431	$ 137,806
Other comprehensive (loss) income, net of tax:
Foreign currency translation, net of tax of $2,750, $12,721, $20,854 and $13,252 for the three and nine month periods, respectively	(29,329)	(46,395)	(91,216)	(41,105)
Pension and other postretirement benefit plans adjustment, net of tax of $(609), $(526), $(1,894) and $(1,235) for the three and nine month periods, respectively	1,185	1,094	3,622	2,336
Derivatives qualifying as hedges, net of tax of $420, $(34), $856 and $(117) for the three and nine month periods, respectively	(730)	60	(1,489)	203
Other comprehensive loss, net of tax:	(28,874)	(45,241)	(89,083)	(38,566)
Comprehensive income	31,978	9,716	55,348	99,240
Less: comprehensive (loss) income attributable to non-controlling interest	(57)	86	613	793
Comprehensive income attributable to common shareholders	$ 32,035	$ 9,630	$ 54,735	$ 98,447