Repurchase Agreements - Schedule of Aggregator's Repurchase Agreement Obligations (Details) - BXINFRA Aggregator (CYM) L.P. - USD ($) $ in Thousands |
Sep. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Disclosure of Repurchase Agreements [Line Items] | ||
| Assets sold under agreements to repurchase, carrying amount | $ 187,939 | $ 58,005 |
| Overnight and Continuous | ||
| Disclosure of Repurchase Agreements [Line Items] | ||
| Assets sold under agreements to repurchase, carrying amount | 0 | 0 |
| Up to 30 Days | ||
| Disclosure of Repurchase Agreements [Line Items] | ||
| Assets sold under agreements to repurchase, carrying amount | 0 | 0 |
| 30 - 90 Days | ||
| Disclosure of Repurchase Agreements [Line Items] | ||
| Assets sold under agreements to repurchase, carrying amount | 0 | 0 |
| Greater than 90 days | ||
| Disclosure of Repurchase Agreements [Line Items] | ||
| Assets sold under agreements to repurchase, carrying amount | $ 187,939 | $ 58,005 |