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Related party transactions - Transactions with Red Creek Asset Management LLC (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Affiliated Entity
Related Party Transaction [Line Items]
Management fee payable	$ 2,300	$ 2,300
Transactions with Red Creek Asset Management LLC | Related Party
Related Party Transaction [Line Items]
Fees paid to Asset Manager	2,466	2,744
Transactions with Red Creek Asset Management LLC | Affiliated Entity
Related Party Transaction [Line Items]
Management fee payable	$ 200	$ 200

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