Benefit Plan (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Nov. 17, 2009
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Contributions by Employer		$ 0	$ 0
Defined Benefit Plan, Benefit Obligation		$ 139,217	$ 127,394	$ 182,964
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate		5.14%	5.32%	3.23%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets		6.92%	6.92%	7.00%
Accumulated benefit obligation for the pension plan		$ 113,400	$ 106,300
Common share purchased under pension plan, shares					115,800
Common share purchased under pension plan, value					$ 7,000
Common share purchased under pension plan, value per share					$ 60.45
Fair value, pension plan common shares held, shares		115,800	115,800
Fair value of common shares held by pension plan		$ 15,400	$ 16,300
Fair value of common shares held by pension plan, per share		$ 132.86	$ 140.75
Defined Contribution Plan, Cost		$ 5,000	$ 4,600	$ 4,300
Subsequent Event [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Contributions by Employer	$ 0
Supplemental Executive Retirement Plan (SERP)
Defined Benefit Plan Disclosure [Line Items]
Accrued benefit cost		$ 15,200	$ 14,200