STOCKHOLDERS' EQUITY - AOCI (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016	Apr. 01, 2017	Dec. 31, 2016	Apr. 02, 2016
Accumulated other comprehensive (loss) Income
Cumulative translation adjustment, net of income taxes of $0			$ (26,132)	$ (29,162)	$ (26,076)
Unrealized gains (losses) on cash flow hedging derivatives, net of income taxes of $385, $513 and $(512), respectively			736	1,002	(935)
Accumulated other comprehensive loss, net of income taxes	$ (28,160)	$ (27,011)	(25,396)	(28,160)	(27,011)
Income tax effect on cumulative translation adjustment			0	0	0
Income tax effect on unrealized gains (losses) on cash flow hedging derivatives			385	513	(512)
Change in each component of Accumulated other comprehensive (loss) income, net of income taxes
Balance at beginning of period	(28,160)
Balance at end of period	(25,396)	(27,011)
Cumulative Translation Adjustment
Accumulated other comprehensive (loss) Income
Accumulated other comprehensive loss, net of income taxes	(29,162)	(30,054)	(26,132)	(29,162)	(26,076)
Change in each component of Accumulated other comprehensive (loss) income, net of income taxes
Balance at beginning of period	(29,162)	(30,054)
Other comprehensive income (loss) before reclassification	3,228	3,978
Amounts reclassified from accumulated other comprehensive (loss) income	(198)
Net current-period other comprehensive income (loss)	3,030	3,978
Balance at end of period	(26,132)	(26,076)
Unrealized Gains (Losses) on Cash Flow Hedging Derivatives
Accumulated other comprehensive (loss) Income
Accumulated other comprehensive loss, net of income taxes	1,002	13	$ 736	$ 1,002	$ (935)
Change in each component of Accumulated other comprehensive (loss) income, net of income taxes
Balance at beginning of period	1,002	13
Other comprehensive income (loss) before reclassification	(557)	(725)
Amounts reclassified from accumulated other comprehensive (loss) income	291	(223)
Net current-period other comprehensive income (loss)	(266)	(948)
Balance at end of period	$ 736	$ (935)