Investments and Fair Value Measurement - Summary of Changes in the Fair Value of Investments for which Level III Inputs Were Used (Details)	12 Months Ended
	Dec. 31, 2025 USD ($)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of period	$ 0
Purchases	2,500,000
Change in unrealized gain/(loss) included in net assets	$ 1,457,829
Fair Value Recurring Basis Unobservable Input Reconciliation Asset Gain Loss Statement Of Income Extensible List Not Disclosed Flag	Change in unrealized gain/(loss) included in net assets
Balance, end of period	$ 3,957,829
Changes in unrealized gain (loss) included in earnings related to financial assets still held at reporting date	$ 1,457,829
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Changes in unrealized gain (loss) included in earnings related to financial assets still held at reporting date
Stonepeak-Plus Infrastructure Fund Master Aggregator LP
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of period	$ 0
Purchases	586,750,626
Change in unrealized gain/(loss) included in net assets	43,200,713
Balance, end of period	629,951,339
Changes in unrealized gain (loss) included in earnings related to financial assets still held at reporting date	43,200,713
Stonepeak-Plus Infrastructure Fund Master Aggregator LP | Other Affiliated Investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of period	0
Purchases	575,012,364
Change in unrealized gain/(loss) included in net assets	42,772,141
Balance, end of period	617,784,505
Changes in unrealized gain (loss) included in earnings related to financial assets still held at reporting date	42,772,141
Stonepeak-Plus Infrastructure Fund Master Aggregator LP | Debt Investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of period	0
Purchases	11,738,262
Change in unrealized gain/(loss) included in net assets	428,572
Balance, end of period	12,166,834
Changes in unrealized gain (loss) included in earnings related to financial assets still held at reporting date	$ 428,572