Employee Benefit Plans - Defined Benefit Pension Plans' Funded Status (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Change in plan assets:
Fair value of plan assets at end of period	$ 202,791
Pension Plans
Change in benefit obligation:
Benefit obligation at beginning of year	246,934	$ 258,589
Service cost	10,396	11,440	$ 8,391
Interest cost	6,683	6,070	6,855
Actuarial gain	(70,121)	(19,834)
Benefits paid	(9,133)	(9,331)
Benefit obligation at end of year	184,759	246,934	258,589
Change in plan assets:
Fair value of plan assets at beginning of year	239,438	216,872
Actual return on plan assets	(27,970)	26,421
Employer contributions	456	5,476
Benefits paid	(9,133)	(9,331)
Fair value of plan assets at end of period	202,791	239,438	$ 216,872
Funded status at end of year	$ 18,032	$ (7,496)
Assumptions used to develop the net periodic pension cost
Discount rate	2.75%	2.39%	3.14%
Expected long-term rate of return on assets	6.50%	6.50%	6.50%
Rate of increase in compensation levels	3.00%	3.00%	3.00%
Assumptions used to determine benefit obligations
Discount rate	4.99%	2.75%	2.39%
Expected long-term rate of return on assets	6.50%	6.50%	6.50%
Rate of increase in compensation levels	3.00%	3.00%	3.00%