Pensions and Other Benefit Programs (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2016		Sep. 30, 2015	Sep. 30, 2016		Sep. 30, 2015
United States
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 26		$ 38	$ 80		$ 114
Interest cost	18,452		18,581	55,354		55,745
Expected return on plan assets	(25,480)		(26,002)	(76,439)		(78,004)
Amortization of transition credit	0		0	0		0
Amortization of prior service (credit) cost	(15)		2	(45)		6
Amortization of net actuarial loss	6,779		7,327	20,336		21,982
Settlement	183		1,083	1,971		1,083
Net periodic benefit cost (income)	(55)		1,029	1,257		926
Foreign
Defined Benefit Plan Disclosure [Line Items]
Service cost	549		557	1,622		1,677
Interest cost	5,366		6,099	16,773		18,284
Expected return on plan assets	(7,976)		(8,912)	(25,029)		(26,686)
Amortization of transition credit	(2)		(2)	(6)		(7)
Amortization of prior service (credit) cost	(19)		(16)	(54)		(49)
Amortization of net actuarial loss	1,302		1,482	4,018		4,471
Settlement	0		0	0		0
Net periodic benefit cost (income)	(780)		(792)	(2,676)		(2,310)
Nonpension Postretirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	512		530	1,534		1,849
Interest cost	1,994		2,086	5,977		6,612
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	222		222
Amortization of net actuarial loss	904		1,704	2,711		5,657
Settlement	0	[1]	0	0	[1]	0
Net periodic benefit cost (income)	$ 3,484		$ 4,394	$ 10,444		$ 14,340

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