Pensions and Other Benefit Programs (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2016		Jun. 30, 2015	Jun. 30, 2016		Jun. 30, 2015
United States
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 22		$ 38	$ 54		$ 76
Interest cost	18,072		18,305	36,902		37,164
Expected return on plan assets	(25,370)		(25,958)	(50,959)		(52,002)
Amortization of transition credit	0		0	0		0
Amortization of prior service (credit) cost	(15)		2	(30)		4
Amortization of net actuarial loss	6,851		7,007	13,557		14,655
Settlement	690		0	1,788		0
Net periodic benefit cost (income)	250		(606)	1,312		(103)
Foreign
Defined Benefit Plan Disclosure [Line Items]
Service cost	546		555	1,073		1,120
Interest cost	5,746		6,122	11,407		12,185
Expected return on plan assets	(8,581)		(8,935)	(17,053)		(17,774)
Amortization of transition credit	(2)		(3)	(4)		(5)
Amortization of prior service (credit) cost	(18)		(16)	(35)		(33)
Amortization of net actuarial loss	1,373		1,509	2,716		2,989
Settlement	0		0	0		0
Net periodic benefit cost (income)	(936)		(768)	(1,896)		(1,518)
Nonpension Postretirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	521		640	1,022		1,319
Interest cost	1,847		2,151	3,983		4,526
Expected return on plan assets	0		0	0		0
Amortization of transition credit	0		0	0		0
Amortization of prior service (credit) cost	74		74	148		148
Amortization of net actuarial loss	447		1,562	1,807		3,953
Settlement	0	[1]	0	0	[1]	0
Net periodic benefit cost (income)	$ 2,889		$ 4,427	$ 6,960		$ 9,946

[1] Included in restructuring charges, net in the Condensed Consolidated Statements of Income.