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Flight equipment subject to operating lease - Narrative (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Mar. 31, 2022
USD ($)
Sep. 30, 2022
USD ($)
Nov. 03, 2022
aircraft
Oct. 31, 2022
aircraft
Subsequent Event        
Property, Plant, and Equipment, Lessor Asset under Operating Lease [Line Items]        
Aircrafts returned from Russia       1
Number of aircraft under operating lease terminated remaining in Russia     20  
Flight Equipment        
Property, Plant, and Equipment, Lessor Asset under Operating Lease [Line Items]        
Write-off of Russian fleet | $ $ 791,000 $ 791,017