Retirement Plans Retirement Plans Level 4 (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Interest Cost	$ 482	$ 698	$ 956
Defined Benefit Plan, Amortization of Gain (Loss)	(353)	1,641	2,886
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	129	2,339	3,842
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Defined Benefit Plan, Benefit Obligation	24,635	24,961
Defined Benefit Plan, Interest Cost	482	698	956
Defined Benefit Plan, Actuarial Net (Gains) Losses	(353)	1,641
Defined Benefit Plan, Benefit Obligation, Benefits Paid	2,383	2,665
Defined Benefit Plan, Benefit Obligation	22,381	24,635	24,961
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Defined Benefit Plan, Plan Assets, Amount	0	0
Defined Benefit Plan, Plan Assets, Contributions by Employer	2,383	2,665
Defined Benefit Plan, Plan Assets, Amount	0	0	$ 0
Defined Benefit Plan, Funded (Unfunded) Status of Plan	(22,381)	(24,635)
Defined Benefit Plan, Accumulated Benefit Obligation	22,381	24,635
Liability, Defined Benefit Pension Plan, Current	(2,431)	(2,432)
Liability, Defined Benefit Pension Plan, Noncurrent	(19,950)	(22,203)
Liability, Defined Benefit Pension Plan	(22,381)	(24,635)
Defined Benefit Plan, Estimated Future Retirement Benefits Covered by Insurance Contract, Amount	49,400	48,800
Cash Surrender Value of Life Insurance, Retirement Plans	$ 39,900	$ 39,100
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	2.52%	2.06%	2.95%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate	2.42%	2.98%	4.15%
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase	50.00%
Year One	$ 2,381
Year Two	2,140
Year Three	1,945
Year Four	1,847
Year Five	1,818
Defined Benefit Plan Expected Benefit Payments	17,763
Years 2027 through 2031	7,632
Defined Contribution Plan, Cost	46,000	$ 39,800	$ 39,700
Defined Benefit Plan, Plan Assets, Benefits Paid	$ 2,383	$ 2,665
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent	50.00%