Employee Benefit Plans - Fair Value of Plan Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Real estate funds [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	$ 8,904	$ 9,976	$ 14,937
Actual return on plan assets still held	116	(4,527)
Business dispositions		362
Purchases	5,629
Sales	(6,817)	72
U.S. Pension Plan, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	552,817	601,376	595,143
Business dispositions	0	0
U.S. Pension Plan, Defined Benefit [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	257,210	275,178
U.S. Pension Plan, Defined Benefit [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	295,607	326,198
U.S. Pension Plan, Defined Benefit [Member] | Equity - U.S. Companies [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	150,821	164,006
U.S. Pension Plan, Defined Benefit [Member] | Equity - U.S. Companies [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	150,821	164,006
U.S. Pension Plan, Defined Benefit [Member] | Equity - U.S. Companies [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
U.S. Pension Plan, Defined Benefit [Member] | Equity - Non-U.S. Companies [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	6,975	3,874
U.S. Pension Plan, Defined Benefit [Member] | Equity - Non-U.S. Companies [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	6,975	3,874
U.S. Pension Plan, Defined Benefit [Member] | Equity - Non-U.S. Companies [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
U.S. Pension Plan, Defined Benefit [Member] | Corporate bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	55,509	63,878
U.S. Pension Plan, Defined Benefit [Member] | Corporate bonds [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
U.S. Pension Plan, Defined Benefit [Member] | Corporate bonds [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	55,509	63,878
U.S. Pension Plan, Defined Benefit [Member] | Private placements [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	4,455	6,865
U.S. Pension Plan, Defined Benefit [Member] | Private placements [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
U.S. Pension Plan, Defined Benefit [Member] | Private placements [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	4,455	6,865
U.S. Pension Plan, Defined Benefit [Member] | Government securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	122,379	147,368
U.S. Pension Plan, Defined Benefit [Member] | Government securities [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	47,426	48,370
U.S. Pension Plan, Defined Benefit [Member] | Government securities [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	74,953	98,998
U.S. Pension Plan, Defined Benefit [Member] | Mutual funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	39,159	44,610
U.S. Pension Plan, Defined Benefit [Member] | Mutual funds [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	39,159	44,610
U.S. Pension Plan, Defined Benefit [Member] | Mutual funds [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
U.S. Pension Plan, Defined Benefit [Member] | Real estate funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	42,391	37,145
U.S. Pension Plan, Defined Benefit [Member] | Real estate funds [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
U.S. Pension Plan, Defined Benefit [Member] | Real estate funds [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	42,391	37,145
U.S. Pension Plan, Defined Benefit [Member] | Cash and equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	12,829	14,318
U.S. Pension Plan, Defined Benefit [Member] | Cash and equivalents [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	12,829	14,318
U.S. Pension Plan, Defined Benefit [Member] | Cash and equivalents [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Non-U.S. Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	159,436	163,510	$ 203,681
Business dispositions	0	(46,334)
Non-U.S. Pension Plans, Defined Benefit [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	23,942	42,491
Non-U.S. Pension Plans, Defined Benefit [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	126,590	111,043
Non-U.S. Pension Plans, Defined Benefit [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	8,904	9,976
Non-U.S. Pension Plans, Defined Benefit [Member] | Common stocks [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	23,113	40,960
Non-U.S. Pension Plans, Defined Benefit [Member] | Common stocks [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	23,113	40,960
Non-U.S. Pension Plans, Defined Benefit [Member] | Common stocks [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Non-U.S. Pension Plans, Defined Benefit [Member] | Common stocks [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Non-U.S. Pension Plans, Defined Benefit [Member] | Fixed income investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	48,523	59,791
Non-U.S. Pension Plans, Defined Benefit [Member] | Fixed income investments [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Non-U.S. Pension Plans, Defined Benefit [Member] | Fixed income investments [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	48,523	59,791
Non-U.S. Pension Plans, Defined Benefit [Member] | Fixed income investments [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Non-U.S. Pension Plans, Defined Benefit [Member] | Common stock funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	45,058	43,821
Non-U.S. Pension Plans, Defined Benefit [Member] | Common stock funds [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Non-U.S. Pension Plans, Defined Benefit [Member] | Common stock funds [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	45,058	43,821
Non-U.S. Pension Plans, Defined Benefit [Member] | Common stock funds [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Non-U.S. Pension Plans, Defined Benefit [Member] | Collective funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	23,978	0
Non-U.S. Pension Plans, Defined Benefit [Member] | Collective funds [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Non-U.S. Pension Plans, Defined Benefit [Member] | Collective funds [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	23,978	0
Non-U.S. Pension Plans, Defined Benefit [Member] | Collective funds [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Non-U.S. Pension Plans, Defined Benefit [Member] | Real estate funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	8,904	9,976
Non-U.S. Pension Plans, Defined Benefit [Member] | Real estate funds [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Non-U.S. Pension Plans, Defined Benefit [Member] | Real estate funds [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Non-U.S. Pension Plans, Defined Benefit [Member] | Real estate funds [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	8,904	9,976
Non-U.S. Pension Plans, Defined Benefit [Member] | Cash and equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	829	1,531
Non-U.S. Pension Plans, Defined Benefit [Member] | Cash and equivalents [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	829	1,531
Non-U.S. Pension Plans, Defined Benefit [Member] | Cash and equivalents [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Non-U.S. Pension Plans, Defined Benefit [Member] | Cash and equivalents [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Non-U.S. Pension Plans, Defined Benefit [Member] | Other plan assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	9,031	7,431
Non-U.S. Pension Plans, Defined Benefit [Member] | Other plan assets [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Non-U.S. Pension Plans, Defined Benefit [Member] | Other plan assets [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	9,031	7,431
Non-U.S. Pension Plans, Defined Benefit [Member] | Other plan assets [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	$ 0	$ 0