Employee Benefit Plans - Schedule of Net Periodic Benefit Cost (Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Pension Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	$ 8,044	$ 7,985	$ 6,494
Interest cost	7,317	7,608	8,569
Expected return on plan assets	(26,833)	(23,375)	(21,058)
Amortization of Prior service cost	0	0	0
Amortization of Net loss	2,001	4,902	3,070
Net periodic (income) benefit cost	(9,471)	(2,880)	(2,925)
RIM Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	398	267	210
Interest cost	343	405	466
Expected return on plan assets	0	0	0
Amortization of Prior service cost	0	0	0
Amortization of Net loss	664	397	244
Net periodic (income) benefit cost	1,405	1,069	920
Post-retirement Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	520	394	339
Interest cost	562	683	826
Expected return on plan assets	0	0	0
Amortization of Prior service cost	0	0	0
Amortization of Net loss	613	309	147
Net periodic (income) benefit cost	1,695	1,386	1,312
Split-Dollar Life Insurance
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	562	467	354
Interest cost	500	507	457
Expected return on plan assets	0	0	0
Amortization of Prior service cost	56	56	56
Amortization of Net loss	765	454	247
Net periodic (income) benefit cost	$ 1,883	$ 1,484	$ 1,114