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Employee Benefit Plans - Schedule of Net Periodic Benefit Cost (Income) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Pension Plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Service cost $ 6,466 $ 8,044 $ 7,985
Interest cost 9,510 7,317 7,608
Expected return on plan assets (29,262) (26,833) (23,375)
Amortization of Prior service cost 0 0 0
Amortization of Net loss 1,320 2,001 4,902
Net periodic (income) benefit cost (11,966) (9,471) (2,880)
Pension Plan | Acquired RSI Plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Service cost 0    
Interest cost 198    
Expected return on plan assets (295)    
Settlements/curtailments (10)    
Net periodic (income) benefit cost (107)    
RIM Plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Service cost 372 398 267
Interest cost 389 343 405
Expected return on plan assets 0 0 0
Amortization of Prior service cost 0 0 0
Amortization of Net loss 444 664 397
Net periodic (income) benefit cost 1,205 1,405 1,069
RIM Plan | Acquired RSI Plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Net periodic (income) benefit cost 38    
Post-retirement Plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Service cost 346 520 394
Interest cost 600 562 683
Expected return on plan assets 0 0 0
Amortization of Prior service cost 0 0 0
Amortization of Net loss 311 613 309
Net periodic (income) benefit cost 1,257 1,695 1,386
Post-retirement Plan | Acquired RSI Plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Service cost 93    
Interest cost 93    
Expected return on plan assets 0    
Settlements/curtailments (430)    
Net periodic (income) benefit cost (244)    
Split-Dollar Life Insurance      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Service cost 511 562 467
Interest cost 612 500 507
Expected return on plan assets 0 0 0
Amortization of Prior service cost 56 56 56
Amortization of Net loss 602 765 454
Net periodic (income) benefit cost $ 1,781 $ 1,883 $ 1,484