(Accumulated Other Comprehensive Income (Loss) Rollforward) (Details) $ in Thousands	9 Months Ended
	Oct. 01, 2016 USD ($)
Accumulated Other Comprehensive Income (Loss), Tax [Roll Forward]
Balance at January 2, 2016, tax	$ 219,758
Amounts reclassified from accumulated other comprehensive loss, tax	(3,275)
Current-period other comprehensive income (loss) activity, tax	2,574
Balance at April 2, 2016, tax	219,057
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at January 2, 2016, net of tax	(394,933)
Amounts reclassified from accumulated other comprehensive loss, net of tax	5,144
Current-period other comprehensive income (loss) activity, net of tax	8,547
Balance at October 1, 2016, net of tax	(381,242)
Cumulative translation adjustment
Accumulated Other Comprehensive Income (Loss), Before Tax [Roll Forward]
Balance at January 2, 2016, before tax	(57,675)
Amounts reclassified from accumulated other comprehensive loss, before tax	0
Current-period other comprehensive income (loss) activity, before tax	13,104
Balance at April 2, 2016, before tax	(44,571)
Foreign exchange contracts
Accumulated Other Comprehensive Income (Loss), Before Tax [Roll Forward]
Balance at January 2, 2016, before tax	6,743
Amounts reclassified from accumulated other comprehensive loss, before tax	(4,424)
Current-period other comprehensive income (loss) activity, before tax	(7,131)
Balance at April 2, 2016, before tax	(4,812)
Defined benefit plans
Accumulated Other Comprehensive Income (Loss), Before Tax [Roll Forward]
Balance at January 2, 2016, before tax	(563,759)
Amounts reclassified from accumulated other comprehensive loss, before tax	12,843
Current-period other comprehensive income (loss) activity, before tax	0
Balance at April 2, 2016, before tax	$ (550,916)