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Stock Based Compensation - 2010 Plan and Inducement Awards (Details) |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Jan. 03, 2023 installment item $ / shares shares | Jun. 30, 2023 shares | Mar. 31, 2023 $ / shares | Jun. 30, 2022 shares | Jun. 30, 2023 $ / shares shares | Jun. 30, 2022 shares
Share-based compensation |  |  |  |  |  |
Number of shares, Granted | shares |  |  |  |  | 796,802 |
Exercise price (in dollars per share) |  |  |  |  | $ 23.50 |
2010 Plan | Stock Options |  |  |  |  |  |
Share-based compensation |  |  |  |  |  |
Minimum age required for employees to qualify for immediate vesting of award |  |  |  |  | 55 years |
Threshold years required for retirement age |  |  |  |  | 70 years |
2010 Plan | Stock Options | Employees |  |  |  |  |  |
Share-based compensation |  |  |  |  |  |
Vesting period |  |  |  |  | 3 years |
2010 Plan | Stock Options | Directors |  |  |  |  |  |
Share-based compensation |  |  |  |  |  |
Vesting period |  |  |  |  | 1 year |
Stock Option Inducement Awards |  |  |  |  |  |
Share-based compensation |  |  |  |  |  |
Stock price (in dollars per share) | $ 18.66 |  |  |  |  |
Stock Option Inducement Awards | Executive Chairman of the Board and Interim CEO, Owen Hughes |  |  |  |  |  |
Share-based compensation |  |  |  |  |  |
Number of award grants | item | 2 |  |  |  |  |
Stock Option Inducement Awards | Chief Investment Officer, Bradley Sitko |  |  |  |  |  |
Share-based compensation |  |  |  |  |  |
Number of award grants | item | 2 |  |  |  |  |
Stock Option Inducement Awards | Chief Investment Officer, Bradley Sitko | Share-Based Payment Arrangement, Tranche One |  |  |  |  |  |
Share-based compensation |  |  |  |  |  |
Vesting (as a percent) | 25.00% |  |  |  |  |
Stock Option Inducement Awards | Chief Investment Officer, Bradley Sitko | Share-Based Payment Arrangement, Tranche Two |  |  |  |  |  |
Share-based compensation |  |  |  |  |  |
Number of successive equal monthly vesting installments | installment | 36 |  |  |  |  |
Stock Option Inducement Award, Exercise price of $18.66 per share |  |  |  |  |  |
Share-based compensation |  |  |  |  |  |
Number of shares, Granted | shares |  | 0 |  | 0 |  | 0
Exercise price (in dollars per share) |  |  | $ 18.66 |  | $ 18.66 |
Stock Option Inducement Award, Exercise price of $18.66 per share | Executive Chairman of the Board and Interim CEO, Owen Hughes |  |  |  |  |  |
Share-based compensation |  |  |  |  |  |
Number of shares, Granted | shares | 100,000 |  |  |  |  |
Exercise price (in dollars per share) | $ 18.66 |  |  |  |  |
Number of equal quarterly vesting installments | installment | 4 |  |  |  |  |
Stock Option Inducement Award, Exercise price of $18.66 per share | Chief Investment Officer, Bradley Sitko |  |  |  |  |  |
Share-based compensation |  |  |  |  |  |
Number of shares, Granted | shares | 300,000 |  |  |  |  |
Exercise price (in dollars per share) | $ 18.66 |  |  |  |  |
Stock Option Inducement Award, Exercise price of $30.00 per share |  |  |  |  |  |
Share-based compensation |  |  |  |  |  |
Number of shares, Granted | shares |  | 0 |  | 0 |  | 0
Exercise price (in dollars per share) |  |  | $ 30.00 |  |  |
Stock Option Inducement Award, Exercise price of $30.00 per share | Executive Chairman of the Board and Interim CEO, Owen Hughes |  |  |  |  |  |
Share-based compensation |  |  |  |  |  |
Number of shares, Granted | shares | 75,000 |  |  |  |  |
Exercise price (in dollars per share) | $ 30.00 |  |  |  |  |
Number of successive equal monthly vesting installments | installment | 36 |  |  |  |  |
Stock Option Inducement Award, Exercise price of $30.00 per share | Chief Investment Officer, Bradley Sitko |  |  |  |  |  |
Share-based compensation |  |  |  |  |  |
Number of shares, Granted | shares | 250,000 |  |  |  |  |
Exercise price (in dollars per share) | $ 30.00 |  |  |  |  |

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