CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017		Jun. 30, 2018	Jun. 30, 2017
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME [Abstract]
Net income	$ 45,518	$ (17,571)	[1]	$ 213,771	$ 40,893	[1]
Other comprehensive income (loss), net of tax
Net (loss) gain from foreign currency translation	(34,910)	70,220		(87,185)	92,884
Retirement and postretirement benefit plans	3,938	2,386		7,108	4,773
Deferred loss on interest rate hedges reclassified to interest expense	586	481		1,171	963
Reclassification of certain tax effects to retained earnings				(30,237)
Other				(3,737)
Other comprehensive (loss) income	(30,386)	73,087		(112,880)	98,620
COMPREHENSIVE INCOME	$ 15,132	$ 55,516		$ 100,891	$ 139,513

[1] Reclassified to conform to current presentation (see Notes A and B).