Employee Benefits (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Defined contribution employee automatic contribution, percent	6.00%
Administrative expense	$ 0	$ 0
Contributions, net of forfeitures, made to the defined contribution plan	$ 3,306,000	2,280,000
Profit sharing, percent of pre-tax profit paid to eligible employees on quarterly basis	10.00%
Profit sharing bonus plan expense	$ 2,669,000	2,132,000
Medical claim payments	1,946,000	1,813,000
Health saving account contributions	$ 939,000	$ 857,000
Effective January 1, 2016
Defined Benefit Plan Disclosure [Line Items]
Percent of match	175.00%
Defined contribution employer, maximum match percent	6.00%