Loans Held for Investment and the Allowance for Credit Losses - Schedule of Amortized Cost and Results of Internal Risk Rating Review Performed for Loans Held for Investment Portfolio (Details) $ in Thousands |
Jun. 30, 2026
USD ($)
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Mar. 31, 2026
USD ($)
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Dec. 31, 2025
USD ($)
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Jun. 30, 2025
USD ($)
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Mar. 31, 2025
USD ($)
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Dec. 31, 2024
USD ($)
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| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
| Total | [1] | $ 4,321,538 | $ 4,103,022 | |||||
| Carrying value | [1] | (77,750) | (74,503) | |||||
| Loans held for investment, net | [1] | $ 4,243,788 | $ 4,028,519 | |||||
| Weighted average risk rating | 3.0 | 3.0 | ||||||
| Senior loans | ||||||||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
| Total | $ 4,321,538 | $ 4,103,022 | ||||||
| Carrying value | (77,750) | $ (74,033) | (74,503) | $ (66,957) | $ (64,721) | $ (61,558) | ||
| Loans held for investment, net | $ 4,243,788 | $ 4,028,519 | ||||||
| Weighted average risk rating | 3.0 | 3.0 | ||||||
| 1 | Senior loans | ||||||||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
| Total | $ 0 | $ 0 | ||||||
| 2 | Senior loans | ||||||||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
| Total | 172,681 | 169,232 | ||||||
| 3 | Senior loans | ||||||||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
| Total | 3,986,577 | 3,773,844 | ||||||
| 4 | Senior loans | ||||||||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
| Total | 162,280 | 159,946 | ||||||
| 5 | Senior loans | ||||||||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||
| Total | $ 0 | $ 0 | ||||||
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