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Share-Based Compensation - Performance Restricted Stock Units - Narrative (Details) - PRSUs $ in Millions | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2024 USD ($) shares | Jun. 30, 2023 USD ($) shares | Jun. 30, 2024 USD ($) metric shares | Jun. 30, 2023 USD ($) shares | Dec. 31, 2023 shares | Dec. 31, 2022 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Number of units increased (decreased) during the period (in shares) | shares |  |  |  | (215,000) |  |
Recognized share-based compensation expense (benefit) | $ | $ 0.3 | $ 0.2 | $ 0.3 | $ 0.6 |  |
Unrecognized compensation cost | $ | $ 2.5 |  | $ 2.5 |  |  |
Nonvested shares outstanding (in shares) | shares | 355,000 | 199,000 | 355,000 | 199,000 | 60,000 | 280,000
Weighted-average period over which unrecognized compensation cost is expected to be recognized (years) |  |  | 2 years 9 months 18 days |  |  |
Executive and Senior Officers |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Performance period (years) |  |  | 1 year |  |  |
Award vesting period |  |  | 4 years |  |  |
Requisite service period |  |  | 5 years |  |  |
Executive and Senior Officers | Minimum |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Target award percentage | 0.00% |  | 0.00% |  |  |
Executive and Senior Officers | Maximum |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Target award percentage | 200.00% |  | 200.00% |  |  |
Executive and Senior Officers | Anniversary 1 |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Award vesting percentage (ratably on each of the first four anniversary date) |  |  | 25.00% |  |  |
Executive and Senior Officers | Anniversary 2 |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Award vesting percentage (ratably on each of the first four anniversary date) |  |  | 25.00% |  |  |
Executive and Senior Officers | Anniversary 3 |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Award vesting percentage (ratably on each of the first four anniversary date) |  |  | 25.00% |  |  |
Executive and Senior Officers | Anniversary 4 |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Award vesting percentage (ratably on each of the first four anniversary date) |  |  | 25.00% |  |  |
Executive Officers |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Number of performance award metrics | metric |  |  | 3 |  |  |

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