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Lease revenue
 12 Months Ended
Dec. 31, 2021
Lease Revenue [Abstract]  
Lease revenue Lease revenue
Our current operating lease agreements expire up to and over the next 18 years. The contracted minimum future lease payments receivable from lessees for flight equipment on non-cancelable operating leases for our owned aircraft, engines and helicopters as of December 31, 2021 were as follows:
Contracted minimum future lease payments receivable
2022$5,795,836 
20235,578,759 
20245,318,652 
20254,737,068 
20264,231,210 
Thereafter15,355,925 
$41,017,450