Employee Benefits Plan (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Contribution Plan Disclosure [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Percent of Match	200.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	3.00%
Defined Contribution Plan, Employer Matching Contribution, Eligible Earnings Limit by IRS Amount	$ 290	$ 285	$ 280
Defined Contribution Plan, Employer Discretionary Contribution Amount	4,700	4,000	$ 4,200
Separate Unrestricted Cash For Deferred Compensation Plan.	43,600	39,500
Deferred Compensation Liability, Current and Noncurrent	42,700	38,600
Officer [Member]
Defined Contribution Plan Disclosure [Line Items]
Separate Unrestricted Cash For Deferred Compensation Plan.	$ 42,700	$ 38,600