ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Accumulated other comprehensive income activity
Balance at the beginning of the period	$ 109,751	$ 60,683
Other comprehensive income (loss) before reclassifications	(123,014)	16,275
Amounts reclassified from accumulated other comprehensive income	1,822	3,333
Net current-period other comprehensive (loss) income	(121,192)	19,608
Balance at the end of the period	(11,441)	80,291
Foreign Currency
Accumulated other comprehensive income activity
Balance at the beginning of the period	149,965	120,097
Other comprehensive income (loss) before reclassifications	(123,014)	16,275
Amounts reclassified from accumulated other comprehensive income	(340)
Net current-period other comprehensive (loss) income	(123,354)	16,275
Balance at the end of the period	26,611	136,372
Defined Benefit Pension Plans
Accumulated other comprehensive income activity
Balance at the beginning of the period	(40,093)	(59,248)
Amounts reclassified from accumulated other comprehensive income	2,144	3,294
Net current-period other comprehensive (loss) income	2,144	3,294
Balance at the end of the period	(37,949)	(55,954)
Other
Accumulated other comprehensive income activity
Balance at the beginning of the period	(121)	(166)
Amounts reclassified from accumulated other comprehensive income	18	39
Net current-period other comprehensive (loss) income	18	39
Balance at the end of the period	$ (103)	$ (127)