CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018		Jun. 30, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 92,272	$ 45,519	[1],[2]	$ 132,454	$ 213,772	[1],[2]
Other comprehensive income (loss), net of tax
Net (loss) gain from foreign currency translation	28,606	(34,910)		54,055	(87,185)
Retirement and postretirement benefit plans	2,762	3,938		5,516	7,108
Deferred loss on interest rate hedges reclassified to interest expense	586	586		1,171	1,171
Reclassification of certain tax effects to retained earnings	0	0		0	(30,237)
Other	0	0		0	(3,737)
Other comprehensive income (loss)	31,954	(30,386)		60,742	(112,880)
COMPREHENSIVE INCOME	$ 124,226	$ 15,133		$ 193,196	$ 100,892

[1] Reclassified to conform to current presentation (see Note A).

[2] Reclassified to conform to current presentation (see Note A).