Condensed Consolidated Schedule of Investments (Unaudited) - USD ($)		Mar. 31, 2026	Dec. 31, 2025
Schedule of Investments [Line Items]
Cost		$ 818,638,607	$ 688,037,634
Fair Value		$ 936,589,565	$ 774,862,476
Fair Value as a Percentage of Net Assets		104.40%	105.30%
Other Affiliated Investments
Schedule of Investments [Line Items]
Cost	[1]	$ 2,500,000	$ 2,500,000
Fair Value	[1]	$ 3,925,272	$ 3,957,829
Fair Value as a Percentage of Net Assets	[1]	0.40%	0.50%
Affiliated Investee Funds
Schedule of Investments [Line Items]
Cost		$ 816,138,607	$ 685,537,634
Fair Value		$ 932,664,293	$ 770,904,647
Fair Value as a Percentage of Net Assets		104.00%	104.80%
Investment, Identifier [Axis]: Stonepeak-Plus Infrastructure Fund Aggregator I LP | LP Interest
Schedule of Investments [Line Items]
Cost	[2],[3]	$ 908,774	$ 848,321
Fair Value	[2],[3]	$ 1,000,290	$ 934,092
Fair Value as a Percentage of Net Assets	[2],[3]	0.10%	0.10%
Investment, Identifier [Axis]: Stonepeak-Plus Infrastructure Fund Master Aggregator LP | LP Interest
Schedule of Investments [Line Items]
Cost		$ 815,229,833	$ 684,689,313
Fair Value		$ 931,664,003	$ 769,970,555
Fair Value as a Percentage of Net Assets		103.90%	104.70%

[1] EMEA is defined as Europe, Middle East and Africa.

[2] Partners Holdings LP, Stonepeak GP Investors Holdings LP, and Stonepeak GP Investors Holdings (CYM) LP.

[3] The Master Aggregator controls and consolidates this entity. Included in this interest is an indirect investment in Stonepeak