Leases - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Lessee Lease Description [Line Items]
Operating lease, existence of option to extend	true
Right-of-use lease assets in exchange for operating lease liabilities	$ 80,000
Lease obligation payable	$ 396,000	$ 422,000
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Other accrued expenses and liabilities	Other accrued expenses and liabilities
Rent expense under operating leases	$ 541,000	$ 611,000
Other accrued expenses	$ 135,000	$ 129,000
Weighted average discount rate	4.20%	4.20%
Weighted average remaining lease term	3 years	4 years
Minimum [Member]
Lessee Lease Description [Line Items]
Operating lease renewal term	1 year
Maximum [Member]
Lessee Lease Description [Line Items]
Operating lease renewal term	5 years
Leases, initial term	12 months