ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (ROLLFORWARD TABLE) (DETAILS) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance, value	$ 361,895
Ending balance, value	395,258
Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance, value	(126,964)	$ (101,365)
Other comprehensive income (loss) before reclassifications	29,597	10,237
Amounts reclassified from accumulated other comprehensive income (loss)	(7,340)	(7,414)
Net current period other comprehensive income (loss)	22,257	2,823
Ending balance, value	(104,707)	(98,542)
Foreign Currency Translation Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance, value	(92,008)	(71,196)
Other comprehensive income (loss) before reclassifications	9,335	546
Net current period other comprehensive income (loss)	9,335	546
Ending balance, value	(82,673)	(70,650)
Derivative Valuation, Net of Tax
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance, value	(32,393)	(26,885)
Other comprehensive income (loss) before reclassifications	19,768	8,887
Amounts reclassified from accumulated other comprehensive income (loss)	(7,105)	(7,010)
Net current period other comprehensive income (loss)	12,663	1,877
Ending balance, value	(19,730)	(25,008)
Other, Net of Tax.
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance, value	(2,563)	(3,284)
Other comprehensive income (loss) before reclassifications	494	804
Amounts reclassified from accumulated other comprehensive income (loss)	(235)	(404)
Net current period other comprehensive income (loss)	259	400
Ending balance, value	$ (2,304)	$ (2,884)