Derivative financial instruments - Schedule of derivative instruments designated in a cash flow hedging relationship recognized (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration]	Interest Expense, Other	Interest Expense, Other	Interest Expense, Other
Derivatives Designated in Cash Flow Hedging Relationship - Interest Rate Swaps
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Other Comprehensive Income on Derivatives (Effective Portion)	$ 4,946	$ 2,209	$ (4,837)
Location of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income (Effective Portion) - Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income	$ (507)	$ (1,116)	$ (1,651)