Derivative financial instruments - Schedule of derivative instruments designated in a cash flow hedging relationship recognized (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Derivatives Designated in Cash Flow Hedging Relationship - Interest Rate Swaps
Derivative Instruments, Gain (Loss) [Line Items]
Interest rate swaps	$ 3,157	$ 510	$ (345)	$ (530)
Location of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income (Effective Portion) - Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Interest rate swaps	$ 1,055	$ 217	$ 1,140	$ 612

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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