Lease Rental Revenues and Flight Equipment Held for Lease (Details 1) - Lease Rental Revenue - Geographic Concentration Risk	2 Months Ended
	Feb. 29, 2020	Feb. 28, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration	100.00%	100.00%
Asia and Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration	43.00%	42.00%
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration	26.00%	27.00%
Middle East and Africa
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration	11.00%	8.00%
North America
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration	13.00%	12.00%
Middle East and Africa
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration	7.00%	11.00%