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Pension and Postretirement Benefits (Plan Assets) (Details) - Pension Plan - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
United States    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance $ 365,044 $ 488,281
Return (Loss) on plan assets 29,323 (84,785)
Company contributions 3,143 639
Benefits paid (35,941) (39,091)
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Settlement (395) 0
Ending balance 361,174 365,044
Fair Value 361,174 365,044
United States | Hierarchial Level 1    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 4,072  
Ending balance 5,798 4,072
Fair Value 5,798 4,072
United States | Hierarchial Level 2    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 360,972  
Ending balance 355,376 360,972
Fair Value 355,376 360,972
United States | Hierarchial Level 3    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 0  
Ending balance 0 0
Fair Value 0 0
United States | Cash and Cash Equivalents    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 4,072  
Ending balance 5,798 4,072
Fair Value 5,798 4,072
United States | Cash and Cash Equivalents | Hierarchial Level 1    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 4,072  
Ending balance 5,798 4,072
Fair Value 5,798 4,072
United States | Cash and Cash Equivalents | Hierarchial Level 2    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 0  
Ending balance 0 0
Fair Value 0 0
United States | Cash and Cash Equivalents | Hierarchial Level 3    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 0  
Ending balance 0 0
Fair Value 0 0
United States | Global Equity    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 77,217  
Ending balance 76,217 77,217
Fair Value 76,217 77,217
United States | Global Equity | Hierarchial Level 1    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 0  
Ending balance 0 0
Fair Value 0 0
United States | Global Equity | Hierarchial Level 2    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 77,217  
Ending balance 76,217 77,217
Fair Value 76,217 77,217
United States | Global Equity | Hierarchial Level 3    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 0  
Ending balance 0 0
Fair Value 0 0
United States | Global Real Assets    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 46,476  
Ending balance 54,025 46,476
Fair Value 54,025 46,476
United States | Global Real Assets | Hierarchial Level 1    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 0  
Ending balance 0 0
Fair Value 0 0
United States | Global Real Assets | Hierarchial Level 2    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 46,476  
Ending balance 54,025 46,476
Fair Value 54,025 46,476
United States | Global Real Assets | Hierarchial Level 3    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 0  
Ending balance 0 0
Fair Value 0 0
United States | Diversified Credit    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 64,877  
Ending balance 54,756 64,877
Fair Value 54,756 64,877
United States | Diversified Credit | Hierarchial Level 1    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 0  
Ending balance 0 0
Fair Value 0 0
United States | Diversified Credit | Hierarchial Level 2    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 64,877  
Ending balance 54,756 64,877
Fair Value 54,756 64,877
United States | Diversified Credit | Hierarchial Level 3    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 0  
Ending balance 0 0
Fair Value 0 0
United States | Liability Driven Investment    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 172,402  
Ending balance 170,378 172,402
Fair Value 170,378 172,402
United States | Liability Driven Investment | Hierarchial Level 1    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 0  
Ending balance 0 0
Fair Value 0 0
United States | Liability Driven Investment | Hierarchial Level 2    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 172,402  
Ending balance 170,378 172,402
Fair Value 170,378 172,402
United States | Liability Driven Investment | Hierarchial Level 3    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 0  
Ending balance 0 0
Fair Value 0 0
Foreign Plan    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 172,276 275,941
Return (Loss) on plan assets 4,444 (71,104)
Company contributions 10,221 15,657
Benefits paid (15,181) (15,797)
Employee contributions 80 71
Settlements (967) (8,039)
Currency translation impact 8,577 (24,453)
Ending balance 179,450 172,276
Fair Value 179,450 172,276
Foreign Plan | Hierarchial Level 1    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 2,134  
Ending balance 706 2,134
Fair Value 706 2,134
Foreign Plan | Hierarchial Level 2    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 120,767  
Ending balance 126,132 120,767
Fair Value 126,132 120,767
Foreign Plan | Hierarchial Level 3    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 49,375  
Ending balance 52,612 49,375
Fair Value 52,612 49,375
Foreign Plan | Cash and Cash Equivalents    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 2,134  
Ending balance 706 2,134
Fair Value 706 2,134
Foreign Plan | Cash and Cash Equivalents | Hierarchial Level 1    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 2,134  
Ending balance 706 2,134
Fair Value 706 2,134
Foreign Plan | Cash and Cash Equivalents | Hierarchial Level 2    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 0  
Ending balance 0 0
Fair Value 0 0
Foreign Plan | Cash and Cash Equivalents | Hierarchial Level 3    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 0  
Ending balance 0 0
Fair Value 0 0
Foreign Plan | U.K. Government Gilt Index    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 65,650  
Ending balance 69,566 65,650
Fair Value 69,566 65,650
Foreign Plan | U.K. Government Gilt Index | Hierarchial Level 1    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 0  
Ending balance 0 0
Fair Value 0 0
Foreign Plan | U.K. Government Gilt Index | Hierarchial Level 2    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 65,650  
Ending balance 69,566 65,650
Fair Value 69,566 65,650
Foreign Plan | U.K. Government Gilt Index | Hierarchial Level 3    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 0  
Ending balance 0 0
Fair Value 0 0
Foreign Plan | Liability Driven Investment    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 20,849  
Ending balance 21,873 20,849
Fair Value 21,873 20,849
Foreign Plan | Liability Driven Investment | Hierarchial Level 1    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 0  
Ending balance 0 0
Fair Value 0 0
Foreign Plan | Liability Driven Investment | Hierarchial Level 2    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 20,849  
Ending balance 21,873 20,849
Fair Value 21,873 20,849
Foreign Plan | Liability Driven Investment | Hierarchial Level 3    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 0  
Ending balance 0 0
Fair Value 0 0
Foreign Plan | Multi-Asset Category    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 34,268  
Ending balance 34,693 34,268
Fair Value 34,693 34,268
Foreign Plan | Multi-Asset Category | Hierarchial Level 1    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 0  
Ending balance 0 0
Fair Value 0 0
Foreign Plan | Multi-Asset Category | Hierarchial Level 2    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 34,268  
Ending balance 34,693 34,268
Fair Value 34,693 34,268
Foreign Plan | Multi-Asset Category | Hierarchial Level 3    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 0  
Ending balance 0 0
Fair Value 0 0
Foreign Plan | Buy-in Contracts    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 32,313  
Ending balance 31,692 32,313
Fair Value 31,692 32,313
Foreign Plan | Buy-in Contracts | Hierarchial Level 1    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 0  
Ending balance 0 0
Fair Value 0 0
Foreign Plan | Buy-in Contracts | Hierarchial Level 2    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 0  
Ending balance 0 0
Fair Value 0 0
Foreign Plan | Buy-in Contracts | Hierarchial Level 3    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Ending balance 31,692  
Fair Value 31,692  
Foreign Plan | Other types    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 17,062  
Ending balance 20,920 17,062
Fair Value 20,920 17,062
Foreign Plan | Other types | Hierarchial Level 1    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 0  
Ending balance 0 0
Fair Value 0 0
Foreign Plan | Other types | Hierarchial Level 2    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 0  
Ending balance 0 0
Fair Value 0 0
Foreign Plan | Other types | Hierarchial Level 3    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 17,062  
Ending balance 20,920 17,062
Fair Value 20,920 17,062
Netherlands | Buy-in Contracts    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 15,700  
Ending balance 16,900 15,700
Fair Value 16,900 15,700
United Kingdom | Buy-in Contracts    
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Beginning balance 16,600  
Ending balance 14,800 16,600
Fair Value $ 14,800 $ 16,600