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Related Party Transactions (Details) - USD ($) $ in Thousands					3 Months Ended		6 Months Ended
	Jan. 05, 2026	Aug. 09, 2024	Dec. 16, 2023	Sep. 25, 2023	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025	Jun. 30, 2025
Related Party Transaction [Line Items]
Management fee expense					$ 20,060	$ 10,129
Management fee payable					8,716		$ 5,795
Accrued performance participation allocation					29,991		19,032
Performance participation allocation					11,066	15,358
Accrued shareholder servicing fees and distribution fees					221,485		204,472
Recouped expenses					3,970	2,148
Due to Manager and affiliates					17,150		$ 14,165
Payment for purchase, investment, operating activity					$ 636,146	$ 320,939
Class F Shares
Related Party Transaction [Line Items]
Number of shares issued as payment of performance participation allocation (in shares)					3,352	404
Stock issued during period, value, performance participation allocation					$ 107	$ 12
Total Return \| Class H Shares
Related Party Transaction [Line Items]
Related party transaction rate (as a percent)					12.50%
Catch-Up Rate \| Class H Shares
Related Party Transaction [Line Items]
Related party transaction rate (as a percent)					100.00%
Excess Profits \| Class H Shares
Related Party Transaction [Line Items]
Related party transaction rate (as a percent)					100.00%
Remaining Excess Profits \| Class H Shares
Related Party Transaction [Line Items]
Related party transaction rate (as a percent)					12.50%
Performance Participation Allocation, Percentage of Remaining Excess Profits \| Class H Shares
Related Party Transaction [Line Items]
Related party transaction rate (as a percent)					12.50%
Performance Participation Allocation, Percentage of Cumulative Cash Proceeds \| Class F Shares
Related Party Transaction [Line Items]
Related party transaction rate (as a percent)								12.50%
Original Issuance Date \| Class F Shares
Related Party Transaction [Line Items]
Agreement term (in years)							5 years
Affiliated Entity
Related Party Transaction [Line Items]
Initial offering period (in months)				60 months
Minimum aggregate subscriptions required				$ 100,000
Minimum aggregate subscription, purchase period (in months)				12 months
Management fee expense					$ 20,060	10,129
Management fees and certain operating expenses					11,500	10,129
Other fees earned, unapplied credits					1,475		$ 0
Expense related to distribution and servicing fees					$ 23	$ 7
Affiliated Entity \| KKR Alternative Assets LLC
Related Party Transaction [Line Items]
Aggregate principal amount		$ 350,000
Extension option period	6 months	6 months
Debt instrument, basis spread on variable rate		3.25%
Affiliated Entity \| Class F Shares
Related Party Transaction [Line Items]
Number of shares issued for services (in shares)					184,001
Management fee expense					$ 5,795
Affiliated Entity \| Management Fee Rate Attributable to Class D, I and S Shares
Related Party Transaction [Line Items]
Related party transaction rate (as a percent)				1.25%
Affiliated Entity \| Management Fee Rate Attributable to Class U, R-D and R Shares Following Acceptance of Initial Subscription of Shares
Related Party Transaction [Line Items]
Related party transaction rate (as a percent)				1.00%
Affiliated Entity \| Management Fee Percentage Attributable To Class U, R-D. R-S And R Shares Thereafter
Related Party Transaction [Line Items]
Related party transaction rate (as a percent)				1.25%
Affiliated Entity \| Distribution Fees and Servicing Fees \| Class S, Class R-S And Class U Shares \| KKR Capital Markets LLC
Related Party Transaction [Line Items]
Related party transaction rate (as a percent)					0.85%
Affiliated Entity \| Distribution Fee \| Class S, Class R-S And Class U Shares \| KKR Capital Markets LLC
Related Party Transaction [Line Items]
Related party transaction rate (as a percent)					0.60%
Affiliated Entity \| Servicing Fee \| Class S, Class R-S And Class U Shares \| KKR Capital Markets LLC
Related Party Transaction [Line Items]
Related party transaction rate (as a percent)					0.25%
Affiliated Entity \| Servicing Fee \| Class D and R-D Shares \| KKR Capital Markets LLC
Related Party Transaction [Line Items]
Related party transaction rate (as a percent)					0.25%
Affiliated Entity \| Expense Limitation and Reimbursement Agreement
Related Party Transaction [Line Items]
Agreement term (in years)			3 years
Affiliated Entity \| Expense Limitation and Reimbursement Agreement \| Maximum
Related Party Transaction [Line Items]
Related party transaction rate (as a percent)			0.60%
Affiliated Entity \| Acquisition of Interests from Affiliated-KKR Sponsored Investment Vehicle
Related Party Transaction [Line Items]
Payment for purchase, investment, operating activity					$ 245,807