Employee Benefit Plans - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) pensionPlan shares	Dec. 31, 2020 USD ($) shares	Dec. 31, 2019 USD ($)
Defined Contribution Plan Disclosure [Line Items]
Number of non-contributory defined-contribution retirement plans | pensionPlan	2
Number of shares issued | shares	14,696,911	14,964,389
Fair value of shares issued	$ 1,470	$ 1,496
Expenses related to defined-contribution plans	4,400	4,400	$ 4,000
Actuarial (gain) loss	$ (6,400)	$ 15,500
Expected long-term rate of return	6.50%	6.75%	7.00%
Compensation expense related to the profit-sharing	$ 5,400	$ 4,500	$ 4,400
Maximum match (as a percent)	4.00%
Expense associated with matching provisions	$ 3,000	2,900	$ 2,900
Life insurance assets	86,495	84,736
Split dollar life insurance benefits
Defined Contribution Plan Disclosure [Line Items]
Estimated liability	1,500	1,700
Compensation expense related to the split dollar life insurance	52	55
DB Pension Plan
Defined Contribution Plan Disclosure [Line Items]
Accumulated benefit obligation	93,000	98,000
Funded (unfunded) status of plan	3,384	(8,849)
Actuarial (gain) loss	$ (2,834)	10,046
DC Retirement Plan
Defined Contribution Plan Disclosure [Line Items]
Requisite service period	1 year
Annual contribution limit (as a percent)	4.00%
Accumulated benefit obligation	$ 10,100	10,500
Funded (unfunded) status of plan	(10,055)	(10,508)
Actuarial (gain) loss	(574)	1,340
SERP Plan
Defined Contribution Plan Disclosure [Line Items]
Accumulated benefit obligation	34,000	36,700
Funded (unfunded) status of plan	(34,033)	(36,710)
Actuarial (gain) loss	$ (3,002)	$ 4,070