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Transactions With Related Parties - Incurred Amounts by Related Parties (Detail) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 USD ($) asset | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) asset | Sep. 30, 2024 USD ($)
Convertible Notes |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Repurchase of aggregate principal amount |  | $ 33,800 |  | $ 33,800
Revantage Corporate Services, LLC and Revantage Global Services Europe S.à r.l, EQ Management, LLC, BRE Hotels & Resorts, LLC LivCor, LLC, NNN PortCo - Reliant | Related Party |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction | $ 3,830 | 422 | $ 7,471 | 1,027
Brio Real Estate Services, LLC, Brio Real Estate (UK) Ltd And Brio Real Estate (AUS) Pty Ltd | Related Party |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction | 1,244 | 0 | 2,345 | 0
Revantage Corporate Services, LLC And Revantage Global Services Europe S.à r.l. | Related Party |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction | 353 | 384 | 696 | 945
Perform Properties, LLC | Related Party |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction | 1,903 | 38 | 2,797 | 82
LivCor LLC | Related Party |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction | 46 | 0 | 322 | 0
BRE Hotels & Resorts, LLC | Related Party |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction | 284 | 0 | 1,153 | 0
LendingOne | Related Party |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction | 0 | 0 | 158 | 0
Total | Related Party |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction | 897 | 165 | 2,170 | 337
BTIG, LLC | Related Party |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction | 0 | 84 | 0 | 124
Repurchase of aggregate principal amount |  |  | 0 |
BTIG, LLC | Related Party | Senior secured notes, net |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Repurchase of aggregate principal amount |  |  |  | 30,800
BTIG, LLC | Related Party | Convertible Notes |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Repurchase of aggregate principal amount |  |  |  | 33,800
Gryphon Mutual Property Americas IC | Related Party |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction | 697 | 57 | 1,845 | 142
Insurance costs inclusive of premiums, capital surplus contributions, taxes and pro rata share of expenses |  |  | 1,400 | 400
Gryphon Mutual Property Americas IC | Affiliates of Manager |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Management fees paid to manager |  |  | 86 | 30
Blackstone internal audit services | Related Party |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction | 0 | 24 | 0 | 71
Lexington National Land Services | Related Party |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction | 170 | 0 | 216 | 0
Blackstone Securities Partners L.P | Related Party |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction | $ 30 | $ 0 | $ 109 | $ 0
CT Investment Management Co., LLC | Related Party |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Number of assets in special servicing under CLOs | asset | 2 |  | 2 |

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