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Employee Benefit Plans - Fair Value of Plan Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]      
Total investments at fair value $ 106,519 $ 203,314  
Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 20,252 21,276 $ 18,597
United States | Qualified Defined Benefits | Qualified Defined Benefits      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 573,100 606,896 550,238
Total investments at fair value 392,709 413,468  
United States | Qualified Defined Benefits | Qualified Defined Benefits | Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 3,227 11,650  
Total investments at fair value 3,227 11,650  
United States | Qualified Defined Benefits | Qualified Defined Benefits | Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 389,482 401,818  
Total investments at fair value 389,482 401,818  
United States | Qualified Defined Benefits | Qualified Defined Benefits | Corporate bonds      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 316,367 329,800  
United States | Qualified Defined Benefits | Qualified Defined Benefits | Corporate bonds | Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 0 0  
United States | Qualified Defined Benefits | Qualified Defined Benefits | Corporate bonds | Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 316,367 329,800  
United States | Qualified Defined Benefits | Qualified Defined Benefits | Government securities      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 73,115 80,551  
United States | Qualified Defined Benefits | Qualified Defined Benefits | Government securities | Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 0 8,533  
United States | Qualified Defined Benefits | Qualified Defined Benefits | Government securities | Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 73,115 72,018  
United States | Qualified Defined Benefits | Qualified Defined Benefits | Interest-bearing cash and short-term investments      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 3,227 3,117  
United States | Qualified Defined Benefits | Qualified Defined Benefits | Interest-bearing cash and short-term investments | Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 3,227 3,117  
United States | Qualified Defined Benefits | Qualified Defined Benefits | Interest-bearing cash and short-term investments | Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 0 0  
United States | Qualified Defined Benefits | Qualified Defined Benefits | Collective funds      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 167,551 180,103  
United States | Qualified Defined Benefits | Qualified Defined Benefits | Collective funds | Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 0 0  
United States | Qualified Defined Benefits | Qualified Defined Benefits | Collective funds | Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 0 0  
United States | Qualified Defined Benefits | Qualified Defined Benefits | Short-term investment funds      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 12,840 13,325  
United States | Qualified Defined Benefits | Qualified Defined Benefits | Short-term investment funds | Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 0 0  
United States | Qualified Defined Benefits | Qualified Defined Benefits | Short-term investment funds | Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 0 0  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 219,677 212,748 $ 185,590
Total investments at fair value 142,526 133,625  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits | Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 92,363 85,100  
Total investments at fair value 92,363 85,100  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits | Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 29,911 27,249  
Total investments at fair value 29,911 27,249  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits | Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 20,252 21,276  
Total investments at fair value 20,252 21,276  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits | Collective funds      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 72,235 74,138  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits | Collective funds | Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 0 0  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits | Collective funds | Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 0 0  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits | Collective funds | Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 0 0  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits | Cash and cash equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 3,634 2,822  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits | Cash and cash equivalents | Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 3,634 2,822  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits | Cash and cash equivalents | Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 0 0  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits | Cash and cash equivalents | Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 0 0  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits | Common stocks      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 58,054 52,865  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits | Common stocks | Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 58,054 52,865  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits | Common stocks | Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 0 0  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits | Common stocks | Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 0 0  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits | Fixed income investments      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 27,034 26,068  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits | Fixed income investments | Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 0 0  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits | Fixed income investments | Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 27,034 26,068  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits | Fixed income investments | Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 0 0  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits | Mutual funds      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 30,675 29,413  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits | Mutual funds | Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 30,675 29,413  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits | Mutual funds | Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 0 0  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits | Mutual funds | Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 0 0  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits | Other      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 23,129 22,457  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits | Other | Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 0 0  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits | Other | Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 2,877 1,181  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits | Other | Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 20,252 21,276  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits | Other      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 4,916 4,985  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits | Other | Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 0 0  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits | Other | Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Total investments 0 0  
Foreign Plan | Qualified Defined Benefits | Qualified Defined Benefits | Other | Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Total investments $ 0 $ 0