ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax
Beginning balance			$ 580,947	$ 1,015,438
Other comprehensive income (loss) before reclassifications	$ (3,514)	$ 1,153	475	10,613
Tax (expense) benefit	(1,859)	6,372	278	8,578
Amounts reclassed from accumulated other comprehensive income	(990)	1,236	(6,946)	6,541
Tax (expense) benefit	324	(580)	1,262	(2,613)
Total other comprehensive income (loss)	(4,707)	6,869	6,437	15,263
Ending balance	516,847	654,814	516,847	654,814
Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax
Beginning balance	(52,198)	(91,472)	(64,499)	(101,867)
Other comprehensive income (loss) before reclassifications	(19,057)	16,461	(6,756)	26,856
Tax (expense) benefit	0	0	0	0
Amounts reclassed from accumulated other comprehensive income	0	0	0	0
Tax (expense) benefit	0	0	0	0
Total other comprehensive income (loss)	(19,057)	16,461	(6,756)	26,856
Ending balance	(71,255)	(75,011)	(71,255)	(75,011)
Cash Flow Hedges \| Forward Contracts
Accumulated Other Comprehensive Income (Loss), Net of Tax
Beginning balance	(11,255)	8,390	(10,098)	10,693
Other comprehensive income (loss) before reclassifications	15,543	(15,306)	7,231	(16,468)
Tax (expense) benefit	(1,859)	6,371	278	8,660
Amounts reclassed from accumulated other comprehensive income	(990)	1,367	(6,946)	6,920
Tax (expense) benefit	324	(628)	1,262	(2,751)
Total other comprehensive income (loss)	14,350	(9,674)	13,193	(11,977)
Ending balance	3,095	(1,284)	3,095	(1,284)
Cash Flow Hedges \| Interest Rate Swaps
Accumulated Other Comprehensive Income (Loss), Net of Tax
Beginning balance		(41)		(343)
Other comprehensive income (loss) before reclassifications		(2)		225
Tax (expense) benefit		1		(82)
Amounts reclassed from accumulated other comprehensive income		(131)		(379)
Tax (expense) benefit		48		138
Total other comprehensive income (loss)		82		384
Ending balance		41		41
Pension Plan
Accumulated Other Comprehensive Income (Loss), Net of Tax
Beginning balance	(1,672)	(3,907)	(1,672)	(3,907)
Other comprehensive income (loss) before reclassifications	0	0	0	0
Tax (expense) benefit	0	0	0	0
Amounts reclassed from accumulated other comprehensive income	0	0	0	0
Tax (expense) benefit	0	0	0	0
Total other comprehensive income (loss)	0	0	0	0
Ending balance	(1,672)	(3,907)	(1,672)	(3,907)
Total
Accumulated Other Comprehensive Income (Loss), Net of Tax
Beginning balance	(65,125)	(87,030)	(76,269)	(95,424)
Ending balance	$ (69,832)	$ (80,161)	$ (69,832)	$ (80,161)

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