ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Accumulated other comprehensive income activity
Balance at the beginning of the period	$ (110,045)	$ 109,751
Other comprehensive income/ (loss) before reclassifications	(139,246)	913
Amounts reclassified from accumulated other comprehensive income	1,175	384
Net current-period other comprehensive income / (loss)	(138,071)	1,297
Balance at the end of the period	(248,116)	111,048
Foreign Currency
Accumulated other comprehensive income activity
Balance at the beginning of the period	(42,851)	149,965
Other comprehensive income/ (loss) before reclassifications	(139,246)	913
Amounts reclassified from accumulated other comprehensive income		(340)
Net current-period other comprehensive income / (loss)	(139,246)	573
Balance at the end of the period	(182,097)	150,538
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	1,169	718
Net current-period other comprehensive income / (loss)	1,169	718
Balance at the end of the period	(65,928)	(39,375)
Other
Accumulated other comprehensive income activity
Balance at the beginning of the period	(97)	(121)
Amounts reclassified from accumulated other comprehensive income	6	6
Net current-period other comprehensive income / (loss)	6	6
Balance at the end of the period	$ (91)	$ (115)

- Definition

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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