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Equity Incentive Plans - Narrative (Details) - USD ($) | 3 Months Ended |  |  |
--- | --- | --- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023 | Dec. 31, 2022 | Jun. 28, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Stock-based compensation | $ 3,100,000 | $ 3,200,000 |  |  |
Unrecognized compensation costs | $ 26,300,000 | $ 27,100,000 |  |  |
Total unrecognized compensation costs expected to be recognized, period | 2 years 7 months 6 days | 2 years 10 months 24 days |  |  |
Performance award shares vested (in shares) | 416,661 | 300,399 |  |  |
Unvested performance awards (in shares) | 2,258,990 | 1,931,766 | 1,880,409 | 958,985 |
Minimum |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Service vesting percentages | 0.00% |  |  |  |
Maximum |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Service vesting percentages | 200.00% |  |  |  |
Employee Stock Option |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Stock-based compensation | $ 32,000 | $ 23,000 |  |  |
Service vesting awards granted | 6,000 | 8,000 |  |  |
Service-Vesting Awards |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Service vesting awards granted | $ 14,200,000 | $ 17,700,000 |  |  |
Service-Vesting Awards | Share-Based Payment Arrangement, Tranche One |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Service vesting percentages | 33.33% |  |  |  |
Service vesting awards | one year |  |  |  |
Service-Vesting Awards | Share-Based Payment Arrangement, Tranche Two and Three |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Service vesting awards | 2 years |  |  |  |
Service-Vesting Awards | Share-Based Payment Arrangement, Tranche Two |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Service vesting percentages | 33.33% |  |  |  |
Service-Vesting Awards | Share-Based Payment Arrangement, Tranche Three |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Service vesting percentages | 33.33% |  |  |  |
Service-Vesting Awards | Maximum |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Vesting period | 7 years |  |  |  |
Performance Vesting Awards |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Service vesting awards | The total compensation will be determined by the Company’s TSR relative to specified BDCs during a specified performance period. Depending on the results achieved during the specified performance period, the actual number of shares that a grant recipient receives at the end of the period may range from 0% to 200% of the target shares granted. |  |  |  |
Vesting period | 4 years |  |  |  |
Performance award shares vested (in shares) | 0 | 0 |  |  |
Unvested performance awards (in shares) | 0 | 0 |  |  |
Performance Vesting Awards | Minimum |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Disposal period after vesting | 1 year |  |  |  |
Performance DEUs |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Performance award shares vested (in shares) | 0 | 54,858 |  |  |
Distribution equivalent units (“DEUs”) were issued with a grant date fair value |  | $ 700,000 |  |  |
Liability Classified Awards |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Stock-based compensation | $ 400,000 | 400,000 |  |  |
Unrecognized compensation costs | $ 100,000 | $ 1,600,000 |  |  |
Total unrecognized compensation costs expected to be recognized, period | 1 month 6 days | 1 year 1 month 6 days |  |  |
Vesting period | 4 years |  |  |  |
Remaining max award value | $ 3,100,000 |  |  |  |
Weighted average performance conditions in liability | 100.00% |  |  |  |
Accounts payable and accrued liabilities | $ 3,000,000 | $ 1,500,000 |  |  |
Liability award vested | $ 0 | $ 0 |  |  |
Other Liability Classified Awards |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Vesting period | 3 years |  |  |  |
2018 Plan | Common Stock |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Common stock, shares authorized (in shares) | 18,700,000 |  |  |  | 9,261,229
Director Plan | Common Stock |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Common stock, shares authorized (in shares) | 300,000 |  |  |  | 300,000

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