v3.25.4
Condensed Statements of Cash Flows - USD ($)
$ in Thousands
 5 Months Ended 6 Months Ended 12 Months Ended
Dec. 31, 2024
Dec. 31, 2024
Dec. 31, 2025
Operating Activities      
Net Increase in Net Assets Resulting from Operations   $ 0 $ 300,184
Adjustments to Reconcile Net Increase in Net Assets Resulting from Operations to Net Cash Provided by (Used in) Operating Activities      
Net Change in Unrealized (Gain) Loss on Investment in the Aggregator   0 (231,095)
Issuance of Class I Units for Directors' Fees   0 228
Investment in the Aggregator   0 (3,325,393)
Proceeds from Investment in the Aggregator   0 209
Cash Flows Due to Changes in Operating Assets and Liabilities      
Dividend Receivable   0 (28,393)
Due from Affiliates   0 138
Accounts Payable, Accrued Expenses and Other Liabilities   0 2,177
Net Cash Used in Operating Activities   0 (3,281,945)
Financing Activities      
Proceeds from Issuance of Units   100 3,298,682
Payment for Servicing Fees   0 (5,015)
Redemption of Units, Net of Early Redemption Deduction   0 (198)
Distributions Paid in Cash   0 (19,795)
Distribution Reinvested   0 9,234
Net Cash Provided by Financing Activities   100 3,282,908
Cash and Cash Equivalents      
Net Increase   100 963
Beginning of Period   0 100
End of Period $ 100 100 1,063
Supplemental Disclosure of Non-Cash Financing Activities      
Accrued Servicing Fees   0 69,167
Distributions Reinvested   0 22,390
Distributions Payable   0 28,388
Redemptions of Units   0 617
BXINFRA Aggregator (CYM) L.P. [Member]      
Operating Activities      
Net Increase in Net Assets Resulting from Operations 0   324,461
Adjustments to Reconcile Net Increase in Net Assets Resulting from Operations to Net Cash Provided by (Used in) Operating Activities      
Net Realized Loss on Investments, Derivative Instruments, and Translation of Assets and Liabilities in Foreign Currencies 0   17,090
Net Change in Unrealized (Gain) Loss on Investment in the Aggregator 0   (331,270)
Proceeds from Investment in the Aggregator 0   1,008,682
Net Change in Unrealized (Gain) Loss on Derivative Instruments 0   123
Net Change in Unrealized (Gain) Loss on Translation of Assets and Liabilities in Foreign Currencies 0   (6,392)
Net Amortization of Debt Investments - Liquids 0   648
Net Accretion of Debt Investments - Infrastructure 0   (270)
Deferred Offering Costs Amortization 0   410
Purchases of Investments 0   (4,847,629)
Cash Flows Due to Changes in Operating Assets and Liabilities      
Due from Affiliates 0   (193)
Interest and Dividend Receivable and Other Assets 0   (75,138)
Deferred Assets 0   (1,591)
Due to Affiliates 0   918
Accounts Payable, Accrued Expenses, and Other Liabilities 0   4,319
Payable for Investments Purchased 0   256,138
Accrued Performance Participation Allocation 0   47,377
Management Fee Payable 0   7,848
Deferred Tax Liabilities, Net 0   3,165
Taxes Payable 0   507
Organization Costs Payable 0   3,188
Administration Fees Payable 0   628
Offering Costs Payable 0   410
Net Cash Used in Operating Activities 0   (3,586,571)
Financing Activities      
Proceeds from Issuance of Units 0   3,538,760
Distribution Reinvested 0   32,253
Proceeds from Repurchase Agreements 0   136,457
Repayment of Repurchase Agreements 0   (78,452)
Proceeds from Credit Facilities 0   1,144,000
Repayment of Credit Facilities 0   (1,074,000)
Distributions Paid in Cash 0   (46,099)
Payments for Redemptions 0   (673)
Net Cash Provided by Financing Activities 0   3,652,246
Effects of Exchange Rate Changes on Cash and Cash Equivalents 0   (931)
Cash and Cash Equivalents      
Net Increase 0   64,744
Beginning of Period 0   0
End of Period 0 $ 0 64,744
Supplemental Disclosure of Cash Flows Information      
Payments for Income Taxes 0   523
Supplemental Disclosure of Non-Cash Financing Activities      
Distributions Payable 0   30,486
Redemptions of Units $ 0   $ 1,178