Fair Value of Financial Instruments - Schedule of Unobservable Inputs (Details) - Level 3 $ in Thousands	Jun. 30, 2026 USD ($) yr
Primary beneficiary \| Fair Value
Fair Value, Option, Quantitative Disclosures [Line Items]
Consolidated variable interest entities assets, CMBS trusts, at fair value \| $	$ 1,235,061
Consolidated variable interest entities liabilities, CMBS trusts, at fair value \| $	1,210,942
Discounted cash flow \| Primary beneficiary \| Fair Value
Fair Value, Option, Quantitative Disclosures [Line Items]
Investments in CMBS securities \| $	$ 26,800
Weighted Average \| Yield \| Discounted cash flow \| Primary beneficiary
Fair Value, Option, Quantitative Disclosures [Line Items]
Variable interest entity assets, CMBS trust, measurement input	0.063
Investments in CMBS securities, measurement input	0.103
Variable interest entity liabilities, CMBS trust, measurement input	0.063
Weighted Average \| Duration (years) \| Discounted cash flow \| Primary beneficiary
Fair Value, Option, Quantitative Disclosures [Line Items]
Variable interest entity assets, CMBS trust, measurement input	6.8
Investments in CMBS securities, measurement input	3.6
Variable interest entity liabilities, CMBS trust, measurement input	6.8
Minimum \| Yield \| Discounted cash flow \| Primary beneficiary
Fair Value, Option, Quantitative Disclosures [Line Items]
Variable interest entity assets, CMBS trust, measurement input	0.047
Investments in CMBS securities, measurement input	0.098
Variable interest entity liabilities, CMBS trust, measurement input	0.047
Minimum \| Duration (years) \| Discounted cash flow \| Primary beneficiary
Fair Value, Option, Quantitative Disclosures [Line Items]
Variable interest entity assets, CMBS trust, measurement input	1.5
Investments in CMBS securities, measurement input	3.5
Variable interest entity liabilities, CMBS trust, measurement input	1.5
Maximum \| Yield \| Discounted cash flow \| Primary beneficiary
Fair Value, Option, Quantitative Disclosures [Line Items]
Variable interest entity assets, CMBS trust, measurement input	0.355
Investments in CMBS securities, measurement input	0.108
Variable interest entity liabilities, CMBS trust, measurement input	0.355
Maximum \| Duration (years) \| Discounted cash flow \| Primary beneficiary
Fair Value, Option, Quantitative Disclosures [Line Items]
Variable interest entity assets, CMBS trust, measurement input	7.3
Investments in CMBS securities, measurement input	3.7
Variable interest entity liabilities, CMBS trust, measurement input	7.3
Commercial real estate loans, held-for-investment, net \| Fair Value
Fair Value, Option, Quantitative Disclosures [Line Items]
Commercial mortgage loans, held-for-investment, net, fair value \| $	$ 4,090,859
Commercial real estate loans, held-for-investment, net \| Capitalization rate \| Direct Capitalization
Fair Value, Option, Quantitative Disclosures [Line Items]
Commercial real estate loans, held-for-investment, measurement input	0.059
Commercial real estate loans, held-for-investment, net \| Weighted Average \| Discount margin \| Discounted cash flow
Fair Value, Option, Quantitative Disclosures [Line Items]
Commercial real estate loans, held-for-investment, measurement input	0.035
Commercial real estate loans, held-for-investment, net \| Weighted Average \| Capitalization rate \| Discounted cash flow
Fair Value, Option, Quantitative Disclosures [Line Items]
Commercial real estate loans, held-for-investment, measurement input	0.094
Commercial real estate loans, held-for-investment, net \| Weighted Average \| Capitalization rate \| Direct Capitalization
Fair Value, Option, Quantitative Disclosures [Line Items]
Commercial real estate loans, held-for-investment, measurement input	0.059
Commercial real estate loans, held-for-investment, net \| Weighted Average \| Discount rate \| Discounted cash flow
Fair Value, Option, Quantitative Disclosures [Line Items]
Commercial real estate loans, held-for-investment, measurement input	0.117
Commercial real estate loans, held-for-investment, net \| Minimum \| Discount margin \| Discounted cash flow
Fair Value, Option, Quantitative Disclosures [Line Items]
Commercial real estate loans, held-for-investment, measurement input	0.023
Commercial real estate loans, held-for-investment, net \| Minimum \| Capitalization rate \| Discounted cash flow
Fair Value, Option, Quantitative Disclosures [Line Items]
Commercial real estate loans, held-for-investment, measurement input	0.059
Commercial real estate loans, held-for-investment, net \| Minimum \| Discount rate \| Discounted cash flow
Fair Value, Option, Quantitative Disclosures [Line Items]
Commercial real estate loans, held-for-investment, measurement input	0.093
Commercial real estate loans, held-for-investment, net \| Maximum \| Discount margin \| Discounted cash flow
Fair Value, Option, Quantitative Disclosures [Line Items]
Commercial real estate loans, held-for-investment, measurement input	0.055
Commercial real estate loans, held-for-investment, net \| Maximum \| Capitalization rate \| Discounted cash flow
Fair Value, Option, Quantitative Disclosures [Line Items]
Commercial real estate loans, held-for-investment, measurement input	0.133
Commercial real estate loans, held-for-investment, net \| Maximum \| Discount rate \| Discounted cash flow
Fair Value, Option, Quantitative Disclosures [Line Items]
Commercial real estate loans, held-for-investment, measurement input	0.149

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Fair value portion of asset recognized for present right to economic benefit.

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Fair value of financial and nonfinancial obligations.

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