Employee Benefit Plans - Schedule of Net Periodic Benefit Cost (Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Pension Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	$ 4,679	$ 6,466	$ 8,044
Interest cost	11,637	9,510	7,317
Expected return on plan assets	(30,771)	(29,262)	(26,833)
Amortization of Prior service cost	0	0	0
Net loss	796	1,320	2,001
Net periodic (income) benefit cost	(13,659)	(11,966)	(9,471)
Pension Plan | Acquired RSI Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	0	0
Interest cost	305	198
Expected return on plan assets	(487)	(295)
Settlements/curtailments		(10)
Net loss	0
Net periodic (income) benefit cost	(182)	(107)
RIM Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	277	372	398
Interest cost	632	389	343
Expected return on plan assets	0	0	0
Amortization of Prior service cost	0	0	0
Net loss	57	444	664
Net periodic (income) benefit cost	966	1,205	1,405
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	215	346	520
Interest cost	970	600	562
Expected return on plan assets	0	0	0
Amortization of Prior service cost	0	0	0
Net loss	0	311	613
Net periodic (income) benefit cost	1,185	1,257	1,695
Post-retirement Plan | Acquired RSI Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	67	93
Interest cost	107	93
Expected return on plan assets	0	0
Settlements/curtailments		(430)
Net loss	(61)
Net periodic (income) benefit cost	113	(244)
Split-Dollar Life Insurance
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	277	511	562
Interest cost	818	612	500
Expected return on plan assets	0	0	0
Amortization of Prior service cost	56	56	56
Net loss	0	602	765
Net periodic (income) benefit cost	$ 1,151	$ 1,781	$ 1,883