Pension and Other Postretirement Benefits - Information About Accumulated and Projected Benefit Obligations In Excess of Plan Assets (Details) - Pension Plans, Defined Benefit [Member] - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets [Abstract]
Projected Benefit Obligation	$ 371,616	$ 124,291
Accumulated Benefit Obligation	365,990	119,493
Fair Value of Plan Assets	315,649	94,826
Defined Benefit Plan, Plans with Benefit Obligations in Excess of Plan Assets [Abstract]
Projected Benefit Obligation	371,616	124,291
Fair Value of Plan Assets	315,649	94,826
Domestic plan [Member]
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets [Abstract]
Projected Benefit Obligation	153,723	12,975
Accumulated Benefit Obligation	152,930	11,808
Fair Value of Plan Assets	120,550	0
Defined Benefit Plan, Plans with Benefit Obligations in Excess of Plan Assets [Abstract]
Projected Benefit Obligation	153,723	12,975
Fair Value of Plan Assets	120,550	0
Foreign [Member]
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets [Abstract]
Projected Benefit Obligation	217,893	111,316
Accumulated Benefit Obligation	213,060	107,685
Fair Value of Plan Assets	195,099	94,826
Defined Benefit Plan, Plans with Benefit Obligations in Excess of Plan Assets [Abstract]
Projected Benefit Obligation	217,893	111,316
Fair Value of Plan Assets	$ 195,099	$ 94,826