ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Accumulated other comprehensive income activity
Balance at the beginning of the period	$ (110,045)	$ 109,751
Other comprehensive loss before reclassifications	(115,022)	(123,014)
Amounts reclassified from accumulated other comprehensive income	3,535	1,822
Net current-period other comprehensive (loss) income	(111,487)	(121,192)
Balance at the end of the period	(221,532)	(11,441)
Foreign Currency
Accumulated other comprehensive income activity
Balance at the beginning of the period	(42,851)	149,965
Other comprehensive loss before reclassifications	(115,022)	(123,014)
Amounts reclassified from accumulated other comprehensive income		(340)
Net current-period other comprehensive (loss) income	(115,022)	(123,354)
Balance at the end of the period	(157,873)	26,611
Defined Benefit Pension Plans
Accumulated other comprehensive income activity
Balance at the beginning of the period	(67,097)	(40,093)
Amounts reclassified from accumulated other comprehensive income	3,516	2,144
Net current-period other comprehensive (loss) income	3,516	2,144
Balance at the end of the period	(63,581)	(37,949)
Other
Accumulated other comprehensive income activity
Balance at the beginning of the period	(97)	(121)
Amounts reclassified from accumulated other comprehensive income	19	18
Net current-period other comprehensive (loss) income	19	18
Balance at the end of the period	$ (78)	$ (103)