Changes in Accumulated Other Comprehensive Income by Component (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 03, 2016	Jun. 28, 2015	Jul. 03, 2016	Jun. 28, 2015
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Beginning Balance			$ 990,076
Ending balance	$ 1,042,893		1,042,893
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Beginning Balance	(50,213)	$ (77,170)	(79,245)	$ (22,541)
Other comprehensive income before reclassifications	(14,163)	15,605	14,869	(39,024)
Amounts reclassified from AOCI to:	0	0	0	0
Net current period other comprehensive income	(14,163)	15,605	14,869	(39,024)
Ending balance	(64,376)	(61,565)	(64,376)	(61,565)
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Beginning Balance	2	17	2	(38)
Other comprehensive income before reclassifications	0	(7)	0	48
Amounts reclassified from AOCI to:	0	0	0	0
Net current period other comprehensive income	0	(7)	0	48
Ending balance	2	10	2	10
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Beginning Balance	(636)	(709)	(609)	(798)
Other comprehensive income before reclassifications	35	(18)	8	71
Amounts reclassified from AOCI to:	0	0	0	0
Net current period other comprehensive income	35	(18)	8	71
Ending balance	(601)	(727)	(601)	(727)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Beginning Balance	459	(5,158)	(1,187)	(4,134)
Other comprehensive income before reclassifications	(2,308)	(1,316)	(1,684)	(5,108)
Amounts reclassified from AOCI to:	1,059	3,099	2,081	5,867
Net current period other comprehensive income	(1,249)	1,783	397	759
Ending balance	(790)	(3,375)	(790)	(3,375)
AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Beginning Balance	(50,388)	(83,020)	(81,039)	(27,511)
Other comprehensive income before reclassifications	(16,436)	14,264	13,193	(44,013)
Amounts reclassified from AOCI to:	1,059	3,099	2,081	5,867
Net current period other comprehensive income	(15,377)	17,363	15,274	(38,146)
Ending balance	(65,765)	(65,657)	(65,765)	(65,657)
Sales [Member] | Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Amounts reclassified from AOCI to:				0
Sales [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Amounts reclassified from AOCI to:				0
Sales [Member] | Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Amounts reclassified from AOCI to:				0
Sales [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Amounts reclassified from AOCI to:				112
Sales [Member] | AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Amounts reclassified from AOCI to:				112
Cost of Goods, Total [Member] | Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Amounts reclassified from AOCI to:	0	0	0	0
Cost of Goods, Total [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Amounts reclassified from AOCI to:	0	0	0	0
Cost of Goods, Total [Member] | Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Amounts reclassified from AOCI to:	0	0	0	0
Cost of Goods, Total [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Amounts reclassified from AOCI to:	1,058	3,084	2,080	5,647
Cost of Goods, Total [Member] | AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Amounts reclassified from AOCI to:	1,058	3,084	2,080	5,647
Other Income Expense Net [Member] | Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Amounts reclassified from AOCI to:	0	0	0	0
Other Income Expense Net [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Amounts reclassified from AOCI to:	0	0	0	0
Other Income Expense Net [Member] | Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Amounts reclassified from AOCI to:	0	0	0	0
Other Income Expense Net [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Amounts reclassified from AOCI to:	1	15	1	108
Other Income Expense Net [Member] | AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Amounts reclassified from AOCI to:	$ 1	$ 15	$ 1	$ 108