Components of Net Periodic Benefit Cost - Employer Contributions (Details) - USD ($)	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023
Defined Benefit Plan Disclosure [Line Items]
Amount of potential discretionary contributions accrued to a defined contribution plan	$ 744,000		$ 608,000
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Expected future benefit payment		$ 3,900,000
Pension Benefits | Employee Stock Option [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected future benefit payment		604,000
Contributions by employer	0
Post-Retirement Health Benefits
Defined Benefit Plan Disclosure [Line Items]
Expected future benefit payment		$ 249,000
Contributions by employer	$ 80,000