Pension and Other Postretirement Benefit Plans (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Retirement Benefits [Abstract]
Term of insurance contracts to fund benefits			5 years
Curtailment		$ 1,049,000	$ 2,621,000
Contributions by employer	$ 261,000	$ 601,000		$ 0
Assumptions used calculating benefit obligation, discount rate	1.00%	0.45%