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Derivative financial instruments (Tables)
6 Months Ended
Jun. 30, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Derivative financial instruments Our derivative instruments were comprised of the following:
June 30,
2023
December 31,
2022
(in thousands)Notional amountInterest rateMaturityBalance sheet locationFair value
asset / (liability)
Fair value
asset / (liability)
June 2023 amortizing interest rate swap:
$298,729 4.249 %June 2026Other non-current assets$1,358 $— 
March 2023
interest rate swap:
200,000 4.003 %March 2026Other non-current assets2,850 — 
September 2022 interest rate swap:
300,000 3.990 %September 2025Other non-current assets4,807 2,409 
July 2019 interest rate swap:
200,000 1.798 %March 2023Other current assets— 1,184