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Fair Value Measurements - Significant Unobservable Units (Details) $ in Thousands | Jun. 30, 2023 USD ($) | Mar. 31, 2023 USD ($) | Jun. 30, 2022 USD ($) | Mar. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 01, 2021 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
--- | --- | --- | --- | --- | --- | --- | --- | ---
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Debt securities available-for-sale | $ 2,183 | $ 2,078 | $ 2,948 | $ 3,000 | $ 3,000 |  | $ 1,687 | $ 0
Fair Value | $ 2,095 | 3,513 | $ 9,583 | 8,108 | $ 0 |  |  |
Preferred Series A Subclass 0 |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Fair Value |  |  |  |  |  | $ 249,907 |  |
Preferred Series A Subclass 1 |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Fair Value |  |  |  |  |  | 961,801 |  |
Preferred Series B Subclass 2 |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Fair Value |  |  |  |  |  | $ 358,515 |  |
Distribution rate | Preferred Series A Subclass 0 |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Unobservable Input |  |  |  |  |  | 28.26 |  |
Distribution rate | Preferred Series A Subclass 1 |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Unobservable Input |  |  |  |  |  | 29.26 |  |
Distribution rate | Preferred Series B Subclass 2 |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Unobservable Input |  |  |  |  |  | 29.3 |  |
Preferred rate of return | Preferred Series A Subclass 0 |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Unobservable Input |  |  |  |  |  | 6 |  |
Preferred rate of return | Preferred Series A Subclass 1 |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Unobservable Input |  |  |  |  |  | 5.78 |  |
Preferred rate of return | Preferred Series B Subclass 2 |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Unobservable Input |  |  |  |  |  | 5.09 |  |
Growth rate | Preferred Series A Subclass 1 |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Unobservable Input |  |  |  |  |  | 4 |  |
Growth rate | Preferred Series B Subclass 2 |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Unobservable Input |  |  |  |  |  | 4 |  |
Level 3 |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Debt securities available-for-sale |  | $ 2,078 |  | $ 3,000 |  |  |  |
Discounted cash flow | Alternative asset market discount rate |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Unobservable Inputs | 0.1 | 0.1 |  | 0.08 |  |  |  |
Discounted cash flow | Equity market risk premiums |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Unobservable Inputs | 0.07 | 0.07 |  | 0.08 |  |  |  |
Discounted cash flow | Enhanced return discount rate |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Unobservable Inputs | 0.12 | 0.12 |  | 0.12 |  |  |  |
Minimum | Market Approach | Level 3 | Enterprise value-to-revenue multiple |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Unobservable Inputs | 0.2 | 0.2 |  | 0.2 |  |  |  |
Minimum | Discounted cash flow | Alternative asset beta to equity markets |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Unobservable Inputs | 0.42 | 0.42 |  | 0.51 |  |  |  |
Minimum | Discounted cash flow | Distribution rate |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Unobservable Inputs | 0.03 | 0.03 |  | 0.03 |  |  |  |
Minimum | Discounted cash flow | Net asset value volatilities |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Unobservable Inputs | 0.09 | 0.09 |  | 0.09 |  |  |  |
Maximum | Market Approach | Level 3 | Enterprise value-to-revenue multiple |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Unobservable Inputs | 18.9 | 18.9 |  | 18.9 |  |  |  |
Maximum | Discounted cash flow | Alternative asset beta to equity markets |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Unobservable Inputs | 1.67 | 1.67 |  | 1.69 |  |  |  |
Maximum | Discounted cash flow | Distribution rate |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Unobservable Inputs | 0.06 | 0.06 |  | 0.07 |  |  |  |
Maximum | Discounted cash flow | Net asset value volatilities |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Unobservable Inputs | 0.84 | 0.84 |  | 0.38 |  |  |  |
Weighted Average | Market Approach | Level 3 | Enterprise value-to-revenue multiple |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Unobservable Inputs | 1.74 | 1.74 |  | 1.73 |  |  |  |

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