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Equity Incentive Plan (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	May 31, 2024
2024 Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Issuance of Common stock					2,000,000
Future issuances	2,000,000
Restricted Stock
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period	3 years
Recognized share based compensation	$ 5.8	$ 4.6	$ 3.9
Unrecognized compensation, other than options	$ 9.0
Unrecognized compensation recognition period	1 year 9 months 18 days
Fair value inputs forfeiture rate	0.00%
Intrinsic value of restricted shares	$ 2.3	$ 2.7	$ 1.9
Shares Outstanding, granted	101,000	82,000	81,000
Fair value of shares granted to directors	$ 57.51	$ 73.15	$ 63.1
Restricted Stock \| Prior To 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period	5 years
Restricted Stock \| Director
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period	1 year
Recognized share based compensation	$ 1.3	$ 1.1
Fair value inputs forfeiture rate	0.00%
Shares Outstanding, granted	23,389	14,535
Fair value of shares granted to directors	$ 57.51	$ 73.27
Performance units
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Performance period	3 years	3 years	3 years
Shares Outstanding, granted	77,000	47,000	34,000
Fair value of shares granted to directors	$ 59.16	$ 80.34	$ 68.59
Performance units \| During 2023 And After
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Amortization period of compensation expense	3 years
Performance units and shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Performance period	3 years	3 years	3 years	3 years
Fair value inputs forfeiture rate	0.00%
Shares Outstanding, granted	23,000	33,000	28,000
Fair value of shares granted to directors	$ 63.42	$ 90.17	$ 66.96
Performance units and shares \| Prior To 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period	3 years
Amortization period of compensation expense	5 years
Performance units and shares \| During 2023 And After
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period	3 years
Performance units and shares \| 3 Year Performance period to be completed
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Performance period	3 years
Recognized share based compensation	$ 3.1	$ 2.2	$ 1.5
Unrecognized compensation, other than options	$ 5.3
Unrecognized compensation recognition period	1 year 9 months 18 days
Vesting percentage	50.00%
Performance units and shares \| 3 Year Performance period completed
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Performance period	3 years
Recognized share based compensation	$ 0.5	$ 0.5	$ 0.4
Unrecognized compensation, other than options	$ 0.2
Unrecognized compensation recognition period	10 months 24 days
Vesting percentage	50.00%
Performance units and shares \| Maximum \| Prior To 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period	5 years