ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (ROLLFORWARD TABLE) (DETAILS) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance, value	$ 361,895
Ending balance, value	399,794
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	34,117	3,850
Amounts reclassified from accumulated other comprehensive income (loss)	(11,046)	(12,317)
Net current period other comprehensive income (loss)	23,071	(8,467)
Ending balance, value	(103,893)	(109,832)
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	8,089	(7,999)
Net current period other comprehensive income (loss)	8,089	(7,999)
Ending balance, value	(83,919)	(79,195)
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	25,290	9,519
Amounts reclassified from accumulated other comprehensive income (loss)	(10,694)	(11,189)
Net current period other comprehensive income (loss)	14,596	(1,670)
Ending balance, value	(17,797)	(28,555)
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	738	2,330
Amounts reclassified from accumulated other comprehensive income (loss)	(352)	(1,128)
Net current period other comprehensive income (loss)	386	1,202
Ending balance, value	$ (2,177)	$ (2,082)