ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Accumulated other comprehensive income activity
Balance at the beginning of the period	$ 60,683	$ 60,318
Other comprehensive income before reclassifications	(35,614)	41,683
Amounts reclassified from accumulated other comprehensive income	1,194	756
Net current-period other comprehensive income	(34,420)	42,439
Balance at the end of the period	26,263	102,757
Foreign Currency
Accumulated other comprehensive income activity
Balance at the beginning of the period	120,097	100,593
Other comprehensive income before reclassifications	(35,614)	41,683
Net current-period other comprehensive income	(35,614)	41,683
Balance at the end of the period	84,483	142,276
Defined Benefit Pension Plans
Accumulated other comprehensive income activity
Balance at the beginning of the period	(59,248)	(39,907)
Amounts reclassified from accumulated other comprehensive income	1,179	748
Net current-period other comprehensive income	1,179	748
Balance at the end of the period	(58,069)	(39,159)
Other
Accumulated other comprehensive income activity
Balance at the beginning of the period	(166)	(368)
Amounts reclassified from accumulated other comprehensive income	15	8
Net current-period other comprehensive income	15	8
Balance at the end of the period	$ (151)	$ (360)