Financial Instruments and Fair Value Measurements - Schedule of Derivative Financial Instruments (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2023	Dec. 31, 2022
Derivatives, Fair Value [Line Items]
Fair value, liability derivatives	$ 0	$ (46)
Derivative Asset	57,682	54,902
Core Portfolio
Derivatives, Fair Value [Line Items]
Aggregate Notional Amount	856,000
Fair value, derivatives, net	44,408	40,838
Core Portfolio \| Interest Rate Swaps
Derivatives, Fair Value [Line Items]
Fair value, liability derivatives	$ 0	$ (46)
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Unconsolidated VIE liabilities	Unconsolidated VIE liabilities
Derivative Asset	$ 44,408	$ 40,884
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Total assets	Total assets
Core Portfolio \| Interest Rate Swaps \| Other Assets
Derivatives, Fair Value [Line Items]
Aggregate Notional Amount	$ 856,000
Core Portfolio \| Interest Rate Swaps \| Minimum \| Other Assets
Derivatives, Fair Value [Line Items]
Derivative Effective Date	2022-05
Derivative Maturity Date	2025-03
Strike Rate	1.98%
Core Portfolio \| Interest Rate Swaps \| Maximum \| Other Assets
Derivatives, Fair Value [Line Items]
Derivative Effective Date	2023-05
Derivative Maturity Date	2030-07
Strike Rate	3.61%
Fund Portfolio \| Fund II \| Interest Rate Swaps
Derivatives, Fair Value [Line Items]
Derivative Asset	$ 1,346	$ 1,108
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Total assets	Total assets
Fund Portfolio \| Fund II \| Interest Rate Swaps \| Other Assets
Derivatives, Fair Value [Line Items]
Aggregate Notional Amount	$ 50,000
Derivative Effective Date	2023-01
Derivative Maturity Date	2029-12
Fund Portfolio \| Fund II \| Interest Rate Swaps \| Minimum \| Other Assets
Derivatives, Fair Value [Line Items]
Strike Rate	3.23%
Fund Portfolio \| Fund II \| Interest Rate Swaps \| Maximum \| Other Assets
Derivatives, Fair Value [Line Items]
Strike Rate	3.23%
Fund Portfolio \| Fund III \| Interest Rate Caps
Derivatives, Fair Value [Line Items]
Derivative Asset	$ 13	$ 232
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Total assets	Total assets
Fund Portfolio \| Fund III \| Interest Rate Caps \| Other Assets
Derivatives, Fair Value [Line Items]
Aggregate Notional Amount	$ 35,970
Derivative Effective Date	2022-07
Derivative Maturity Date	2023-07
Fund Portfolio \| Fund III \| Interest Rate Caps \| Minimum \| Other Assets
Derivatives, Fair Value [Line Items]
Strike Rate	3.50%
Fund Portfolio \| Fund III \| Interest Rate Caps \| Maximum \| Other Assets
Derivatives, Fair Value [Line Items]
Strike Rate	3.50%
Fund Portfolio \| Fund IV \| Interest Rate Caps
Derivatives, Fair Value [Line Items]
Derivative Asset	$ 589	$ 1,093
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Total assets	Total assets
Fund Portfolio \| Fund IV \| Interest Rate Caps \| Other Assets
Derivatives, Fair Value [Line Items]
Aggregate Notional Amount	$ 76,338
Fund Portfolio \| Fund IV \| Interest Rate Caps \| Minimum \| Other Assets
Derivatives, Fair Value [Line Items]
Derivative Effective Date	2021-07
Derivative Maturity Date	2023-07
Strike Rate	3.00%
Fund Portfolio \| Fund IV \| Interest Rate Caps \| Maximum \| Other Assets
Derivatives, Fair Value [Line Items]
Derivative Effective Date	2022-12
Derivative Maturity Date	2023-12
Strike Rate	3.50%
Fund Portfolio \| Fund V
Derivatives, Fair Value [Line Items]
Aggregate Notional Amount	$ 386,413
Fair value, derivatives, net	11,326	$ 11,585
Fund Portfolio \| Fund V \| Interest Rate Swaps
Derivatives, Fair Value [Line Items]
Derivative Asset	$ 10,972	$ 11,585
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Total assets	Total assets
Fund Portfolio \| Fund V \| Interest Rate Swaps \| Other Assets
Derivatives, Fair Value [Line Items]
Aggregate Notional Amount	$ 345,885
Fund Portfolio \| Fund V \| Interest Rate Swaps \| Minimum \| Other Assets
Derivatives, Fair Value [Line Items]
Derivative Effective Date	2019-11
Derivative Maturity Date	2024-03
Strike Rate	1.14%
Fund Portfolio \| Fund V \| Interest Rate Swaps \| Maximum \| Other Assets
Derivatives, Fair Value [Line Items]
Derivative Effective Date	2023-06
Derivative Maturity Date	2027-12
Strike Rate	4.54%
Fund Portfolio \| Fund V \| Interest Rate Caps
Derivatives, Fair Value [Line Items]
Derivative Asset	$ 354	$ 0
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Total assets	Total assets
Fund Portfolio \| Fund V \| Interest Rate Caps \| Other Assets
Derivatives, Fair Value [Line Items]
Aggregate Notional Amount	$ 40,528
Derivative Effective Date	2023-01
Derivative Maturity Date	2024-01
Fund Portfolio \| Fund V \| Interest Rate Caps \| Minimum \| Other Assets
Derivatives, Fair Value [Line Items]
Strike Rate	3.64%
Fund Portfolio \| Fund V \| Interest Rate Caps \| Maximum \| Other Assets
Derivatives, Fair Value [Line Items]
Strike Rate	3.64%

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Derivative maturity month year.

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- Definition

Indicates line item in statement of financial position that includes derivative asset.

+ References

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- Definition

Fair value of the assets less the liabilities of a derivative or group of derivatives.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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- Definition

Indicates line item in statement of financial position that includes derivative liability.

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- Definition

Nominal or face amount used to calculate payment on derivative.

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- Definition

Variable interest rate in effect as of the balance sheet date related to the interest rate derivative.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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