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v3.24.1.u1

Equity Incentive Plan (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023 | Dec. 31, 2022 | May 31, 2020
2020 Plan |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Issuance of Common stock |  |  |  |  | 700,000
Future issuances | 33,907 |  |  |  |
Restricted Shares |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Vesting period | 3 years |  |  | 5 years |
Recognized share based compensation | $ 1.3 | $ 1.0 |  |  |
Unrecognized compensation, other than options | $ 14.1 |  |  |  |
Unrecognized compensation recognition period | 2 years 6 months |  |  |  |
Fair value inputs forfeiture rate | 0.00% |  |  |  |
Intrinsic value of restricted shares | $ 2.2 | 2.6 |  |  |
Shares Outstanding, granted | 101,000 |  |  |  |
Fair value of shares granted to directors | $ 57.51 |  |  |  |
Restricted Shares | Director |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Vesting period | 1 year |  |  |  |
Recognized share based compensation | $ 0.3 | 0.3 |  |  |
Unrecognized compensation, other than options | $ 1.0 |  |  |  |
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 [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Vesting period | 3 years |  | 3 years |  |
Shares Outstanding, granted | 77,000 |  |  |  |
Fair value of shares granted to directors | $ 59.16 |  |  |  |
Performance units and shares [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Vesting period | 3 years |  | 3 years |  |
Fair value inputs forfeiture rate | 0.00% |  |  |  |
Amortization period of compensation expense | 5 years |  |  |  |
Shares Outstanding, granted | 23,000 |  |  |  |
Fair value of shares granted to directors | $ 63.42 |  |  |  |
Performance units and shares [Member] | 3 Year Performance period to be completed |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Vesting period | 3 years |  |  |  |
Recognized share based compensation | $ 0.6 | 0.4 |  |  |
Unrecognized compensation, other than options | $ 7.9 |  |  |  |
Unrecognized compensation recognition period | 2 years 6 months |  |  |  |
Vesting percentage | 50.00% |  |  |  |
Performance units and shares [Member] | 3 Year Performance period completed |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Vesting period | 3 years |  |  |  |
Recognized share based compensation | $ 0.2 | $ 0.2 |  |  |
Unrecognized compensation, other than options | $ 0.5 |  |  |  |
Unrecognized compensation recognition period | 1 year 4 months 24 days |  |  |  |
Vesting percentage | 50.00% |  |  |  |
Performance units and shares [Member] | Maximum |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Vesting period | 5 years |  |  |  |

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