Components of Net Periodic Benefit Cost - Employer Contributions (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Amount of potential discretionary contributions accrued to a defined contribution plan			$ 849,000
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Expected future benefit payment		$ 0
Pension Benefits | Employee stock option
Defined Benefit Plan Disclosure [Line Items]
Expected future benefit payment		642,000
Contributions by employer	$ 0
Post-Retirement Health Benefits
Defined Benefit Plan Disclosure [Line Items]
Expected future benefit payment		$ 245,000
Contributions by employer	$ 54,000