CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME [Abstract]
Net income	$ 11,774	$ 4,698	$ 33,644	$ 8,830
Other comprehensive income, before tax:
Foreign currency translation adjustments	(27,765)	17,805	(29,705)	4,536
Pension/postretirement plan remeasurement		14,417		14,417
Pension/postretirement plan amendment		7,974		7,974
Amortization of pension liability adjustment:
Transition obligation		17		51
Prior service (credit)/cost	(1,108)	(974)	(3,325)	(2,791)
Net actuarial loss	1,343	1,635	4,026	4,963
Payments related to interest rate swaps included in earnings	480	467	1,431	1,377
Derivative valuation adjustment	446	(865)	(869)	1,096
Income taxes related to items of other comprehensive income:
Pension/postretirement plan remeasurement		(5,623)		(5,623)
Pension/postretirement plan amendment		(3,110)		(3,110)
Amortization of pension liability adjustment	(94)	(265)	(280)	(806)
Payments related to interest rate swaps included in earnings	(187)	(183)	(558)	(537)
Derivative valuation adjustment	(174)	338	339	(427)
Comprehensive income/(loss)	(15,285)	36,331	4,703	29,950
Net loss and comprehensive income attributable to the noncontrolling interest	(31)		(1)
Comprehensive income/(loss) attributable to the Company	$ (15,316)	$ 36,331	$ 4,702	$ 29,950