Pension and Other Postretirement Benefits - Fair Value Hierarchy - Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	$ 294,566	$ 302,270	$ 315,649
Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	118,053	133,333	111,674
Insurance Contract [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets excluding assets measured at NAV	99,527
Fair Value of Plan Assets	99,527	112,920	92,657
Real Estate Fund [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	11,547	9,775	9,581
Other-alternative investments [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	6,979	10,638	9,436
Domestic plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	77,680	73,481	120,550
Foreign [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	216,886	228,789	$ 195,099
Fair Value Measurements Recurring [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	294,566	302,270
Fair Value Measurements Recurring [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	242,694	253,493
Fair Value Measurements Recurring [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	1,989	634
Fair Value Measurements Recurring [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	122,652	119,526
Fair Value Measurements Recurring [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	118,053	133,333
Fair Value Measurements Recurring [Member] | Measured at NAV [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	51,872	48,777
Fair Value Measurements Recurring [Member] | Domestic plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	77,680	73,481
Fair Value Measurements Recurring [Member] | Domestic plan [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	77,680	73,481
Fair Value Measurements Recurring [Member] | Domestic plan [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] | Domestic plan [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	72,721	69,385
Fair Value Measurements Recurring [Member] | Domestic plan [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	4,959	4,096
Fair Value Measurements Recurring [Member] | Domestic plan [Member] | Pooled separate accounts [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	72,721	69,385
Fair Value Measurements Recurring [Member] | Domestic plan [Member] | Pooled separate accounts [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] | Domestic plan [Member] | Pooled separate accounts [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	72,721	69,385
Fair Value Measurements Recurring [Member] | Domestic plan [Member] | Pooled separate accounts [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] | Domestic plan [Member] | Real Estate Fund [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	4,959	4,096
Fair Value Measurements Recurring [Member] | Domestic plan [Member] | Real Estate Fund [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] | Domestic plan [Member] | Real Estate Fund [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] | Domestic plan [Member] | Real Estate Fund [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	4,959	4,096
Fair Value Measurements Recurring [Member] | Foreign [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	216,886	228,789
Fair Value Measurements Recurring [Member] | Foreign [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	165,014	180,012
Fair Value Measurements Recurring [Member] | Foreign [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	1,989	634
Fair Value Measurements Recurring [Member] | Foreign [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	49,931	50,141
Fair Value Measurements Recurring [Member] | Foreign [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	113,094	129,237
Fair Value Measurements Recurring [Member] | Foreign [Member] | Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	1,989	634
Fair Value Measurements Recurring [Member] | Foreign [Member] | Cash and Cash Equivalents [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	1,989	634
Fair Value Measurements Recurring [Member] | Foreign [Member] | Cash and Cash Equivalents [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] | Foreign [Member] | Cash and Cash Equivalents [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] | Foreign [Member] | Insurance Contract [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	99,527	112,920
Fair Value Measurements Recurring [Member] | Foreign [Member] | Insurance Contract [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] | Foreign [Member] | Insurance Contract [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] | Foreign [Member] | Insurance Contract [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	99,527	112,920
Fair Value Measurements Recurring [Member] | Foreign [Member] | Diversified equity securities - registered investment companies [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	10,999	8,851
Fair Value Measurements Recurring [Member] | Foreign [Member] | Diversified equity securities - registered investment companies [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] | Foreign [Member] | Diversified equity securities - registered investment companies [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	10,999	8,851
Fair Value Measurements Recurring [Member] | Foreign [Member] | Diversified equity securities - registered investment companies [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] | Foreign [Member] | Fixed income - foreign registered investment companies [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	3,593	3,711
Fair Value Measurements Recurring [Member] | Foreign [Member] | Fixed income - foreign registered investment companies [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] | Foreign [Member] | Fixed income - foreign registered investment companies [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	3,593	3,711
Fair Value Measurements Recurring [Member] | Foreign [Member] | Fixed income - foreign registered investment companies [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] | Foreign [Member] | Fixed income government securities [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	35,339	37,579
Fair Value Measurements Recurring [Member] | Foreign [Member] | Fixed income government securities [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] | Foreign [Member] | Fixed income government securities [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	35,339	37,579
Fair Value Measurements Recurring [Member] | Foreign [Member] | Fixed income government securities [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] | Foreign [Member] | Real Estate Fund [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	6,588	5,679
Fair Value Measurements Recurring [Member] | Foreign [Member] | Real Estate Fund [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] | Foreign [Member] | Real Estate Fund [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] | Foreign [Member] | Real Estate Fund [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	6,588	5,679
Fair Value Measurements Recurring [Member] | Foreign [Member] | Other-alternative investments [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	6,979	10,638
Fair Value Measurements Recurring [Member] | Foreign [Member] | Other-alternative investments [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] | Foreign [Member] | Other-alternative investments [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] | Foreign [Member] | Other-alternative investments [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	6,979	10,638
Fair Value Measurements Recurring [Member] | Foreign [Member] | Commingled funds [Member] | Measured at NAV [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	2,300	2,368
Fair Value Measurements Recurring [Member] | Foreign [Member] | Diversified investment fund - registered investment [Member] | Measured at NAV [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	$ 49,572	$ 46,409