Summary of Significant Accounting Policies Summary of Significant Accounting Policies (Details) $ / shares in Units, $ in Thousands	2 Months Ended
	Feb. 29, 2020 USD ($) Entity segment	Feb. 28, 2019 USD ($)	Oct. 30, 2020 USD ($) NumberOfAirlines	Mar. 27, 2020 $ / shares
Variable Interest Entity [Line Items]
Number of Operating Segments | segment	1
Net Cash and Restricted Cash Provided by (Used in) Operating Activities	$ 101,024	$ 83,596
Gain on sale of flight equipment	15,354	4,173
Revenues	$ 197,648	$ 130,381
Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Number of Consolidated Variable Interest Entities | Entity	4
Subsequent Event
Variable Interest Entity [Line Items]
IATA estimated percentage of normal air traffic			20.00%
Deferred Lease Income, Current			$ 101,000
Number of Airlines | NumberOfAirlines			40
Business Acquisition, Share Price | $ / shares				$ 32.00
Subsequent Event | Accounts Receivable or Other Assets
Variable Interest Entity [Line Items]
Deferred Lease Income, Current			$ 9,594