Risks and Uncertainties (Details) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended | |
Nov. 30, 2022 USD ($) aircraft Lessee | Nov. 30, 2021 USD ($) Lessee | Nov. 30, 2022 USD ($) aircraft Lessee | Nov. 30, 2021 USD ($) Lessee | Feb. 28, 2022 USD ($) aircraft Lessee | Jan. 06, 2023 aircraft |
Concentration Risk [Line Items] | | | | | | |
Property Subject To Or Available for Operating Lease, Number of Units1 | 241 | | 241 | | 251 | |
Percentage of geographic concentration | 100% | 100% | 100% | 100% | 100% | |
Number of Offlease Aircraft Marketed for Lease or Sale | | | | | 11 | |
Number of Offlease Aircraft Marketed for Lease | 13 | | 13 | | | |
Revenue from Contract with Customer, Excluding Assessed Tax | $ | $ 257,516 | $ 191,480 | $ 606,659 | $ 514,942 | | |
Maintenance revenue | $ | 56,574 | 33,510 | 103,787 | 81,204 | | |
Gain on sale of flight equipment | $ | $ 53,473 | $ 7,420 | $ 67,209 | $ 17,944 | | |
Asia Pacific [Member] | | | | | | |
Concentration Risk [Line Items] | | | | | | |
Property Subject To Or Available for Operating Lease, Number of Units1 | 64 | | 64 | | 71 | |
Europe [Member] | | | | | | |
Concentration Risk [Line Items] | | | | | | |
Property Subject To Or Available for Operating Lease, Number of Units1 | 90 | | 90 | | 98 | |
Middle East and Africa [Member] | | | | | | |
Concentration Risk [Line Items] | | | | | | |
Property Subject To Or Available for Operating Lease, Number of Units1 | 9 | | 9 | | 10 | |
North America [Member] | | | | | | |
Concentration Risk [Line Items] | | | | | | |
Property Subject To Or Available for Operating Lease, Number of Units1 | 37 | | 37 | | 36 | |
South America [Member] | | | | | | |
Concentration Risk [Line Items] | | | | | | |
Property Subject To Or Available for Operating Lease, Number of Units1 | 28 | | 28 | | 25 | |
INDIA | | | | | | |
Concentration Risk [Line Items] | | | | | | |
Net Investment in Lease and Net Book Value of Equipment held for Lease | $ | $ 0 | | $ 0 | | $ 670,523 | |
property subject to or available for operating lease, net (percentage) | | | 0% | | 10% | |
number of lessees | Lessee | | | 0 | | 3 | |
UNITED STATES | | | | | | |
Concentration Risk [Line Items] | | | | | | |
Maintenance revenue | $ | 13,700 | | $ 13,900 | | | |
Gain on sale of flight equipment | $ | $ 47,000 | | $ 54,800 | | | |
Geographic Concentration Risk [Member] | Net Book Value | Off Lease | | | | | | |
Concentration Risk [Line Items] | | | | | | |
Percentage of geographic concentration | | | 5% | | 4% | |
Geographic Concentration Risk [Member] | Net Book Value | Asia Pacific [Member] | | | | | | |
Concentration Risk [Line Items] | | | | | | |
Percentage of geographic concentration | | | 28% | | 32% | |
Geographic Concentration Risk [Member] | Net Book Value | Europe [Member] | | | | | | |
Concentration Risk [Line Items] | | | | | | |
Percentage of geographic concentration | | | 30% | | 30% | |
Geographic Concentration Risk [Member] | Net Book Value | Middle East and Africa [Member] | | | | | | |
Concentration Risk [Line Items] | | | | | | |
Percentage of geographic concentration | | | 3% | | 4% | |
Geographic Concentration Risk [Member] | Net Book Value | North America [Member] | | | | | | |
Concentration Risk [Line Items] | | | | | | |
Percentage of geographic concentration | | | 20% | | 17% | |
Geographic Concentration Risk [Member] | Net Book Value | South America [Member] | | | | | | |
Concentration Risk [Line Items] | | | | | | |
Percentage of geographic concentration | | | 14% | | 13% | |
Geographic Concentration Risk [Member] | Lease Rental Revenue | Asia Pacific [Member] | | | | | | |
Concentration Risk [Line Items] | | | | | | |
Percentage of geographic concentration | 31% | 27% | 33% | 31% | | |
Geographic Concentration Risk [Member] | Lease Rental Revenue | Europe [Member] | | | | | | |
Concentration Risk [Line Items] | | | | | | |
Percentage of geographic concentration | 30% | 31% | 29% | 34% | | |
Geographic Concentration Risk [Member] | Lease Rental Revenue | Middle East and Africa [Member] | | | | | | |
Concentration Risk [Line Items] | | | | | | |
Percentage of geographic concentration | 5% | 5% | 5% | 5% | | |
Geographic Concentration Risk [Member] | Lease Rental Revenue | North America [Member] | | | | | | |
Concentration Risk [Line Items] | | | | | | |
Percentage of geographic concentration | 21% | 15% | 19% | 15% | | |
Geographic Concentration Risk [Member] | Lease Rental Revenue | South America [Member] | | | | | | |
Concentration Risk [Line Items] | | | | | | |
Percentage of geographic concentration | 13% | 22% | 14% | 15% | | |
Geographic Concentration Risk [Member] | Total Revenue [Member] | UNITED STATES | | | | | | |
Concentration Risk [Line Items] | | | | | | |
Percentage of geographic concentration | 29% | | 18% | | | |
Major Customer Group One [Member] | | | | | | |
Concentration Risk [Line Items] | | | | | | |
Concentration Risk, Number of Customers in Major Customer Group | Lessee | 4 | 4 | 4 | 5 | | |
Major Customer Group One [Member] | Geographic Concentration Risk | Lease Rental Revenue | | | | | | |
Concentration Risk [Line Items] | | | | | | |
Percentage of geographic concentration | 25% | 34% | 27% | 34% | | |
Wide-body [Member] | Subsequent Event [Member] | | | | | | |
Concentration Risk [Line Items] | | | | | | |
Number of Offlease Aircraft Marketed for Lease or Sale | | | | | | 3 |
Wide-body [Member] | Number of Off-lease Aircraft Marketed for Lease or Sale from Prior Year [Member] | Subsequent Event [Member] | | | | | | |
Concentration Risk [Line Items] | | | | | | |
Number of Offlease Aircraft Marketed for Lease or Sale | | | | | | 1 |
Narrow-body [Member] | Subsequent Event [Member] | | | | | | |
Concentration Risk [Line Items] | | | | | | |
Number of Offlease Aircraft Marketed for Lease or Sale | | | | | | 3 |
Freighter | UNITED KINGDOM | Maintenance revenue | | | | | | |
Concentration Risk [Line Items] | | | | | | |
Revenue from Contract with Customer, Excluding Assessed Tax | $ | | | $ 18,100 | | | |