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Related party transactions - Manager (Details)			12 Months Ended
	Aug. 08, 2023 USD ($) qtr	Nov. 22, 2021 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
Related Party
Related Party Transaction [Line Items]
Renewal term			1 year
Management fee percentage			1.50%
Related Party | M I T T Management Agreement Amendment
Related Party Transaction [Line Items]
Reduction in base management fee	$ 600,000
Number of quarters management fee reduction is effective | qtr	4
Management fee amount agreed to waive	$ 2,400,000
Amount to be waived	1,300,000
Base management fee maximum cash consideration threshold	$ 7,000,000.0
Related Party | Termination Fee with Manager
Related Party Transaction [Line Items]
Termination fee multiplier			3
Termination fee multiplier, measurement period			24 months
Affiliated Entity
Related Party Transaction [Line Items]
Management fee payable			$ 2,300,000	$ 2,300,000
Affiliated Entity | Reimbursement to Manager
Related Party Transaction [Line Items]
Due to affiliates			2,100,000	1,700,000
Limited Liability Company | Incentive Fee to Manager
Related Party Transaction [Line Items]
Annual incentive fee		15.00%
Cumulative hurdle percentage		8.00%
Equity hurdle base amount		$ 341,500,000
Incentive fee expense			$ 0	$ 0

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