Flight Equipment Held for Lease, Net (Details) $ in Thousands		12 Months Ended
	Dec. 26, 2023 USD ($) aircraft	Feb. 28, 2026 USD ($)	Feb. 28, 2025 USD ($)	Feb. 29, 2024 USD ($)
Property, Plant and Equipment [Line Items]
Net Book Value		$ 8,267,353	$ 7,644,867
Depreciation		(384,028)	(355,666)	$ (348,229)
Transfers from Flight equipment held for lease, net to Net investment in leases, net and Other assets		68,244	54,151	220,648
Asset Impairment Charges		(53,323)	(19,391)	(55,240)
Proceeds from Insurance Settlement, Operating Activities	$ 43,200	49,500
RUSSIAN FEDERATION | Aircraft Remaining in Country of Base Operations
Property, Plant and Equipment [Line Items]
Number of Aircraft Previously on Lease with Russian Airlines | aircraft	9
RUSSIAN FEDERATION | Aircraft Remaining in Country of Base Operations | Settlement Resolved
Property, Plant and Equipment [Line Items]
Number of Aircraft Previously on Lease with Russian Airlines | aircraft	4
Flight Equipment
Property, Plant and Equipment [Line Items]
Property, Plant, and Equipment, Lessor Asset under Operating Lease, Accumulated Depreciation		1,870,494	2,163,084
Net Book Value		8,267,353	7,644,867	$ 6,940,502
Property, Plant and Equipment, Additions		1,773,528	1,670,063
Depreciation		(381,616)	(353,395)
Transfers from Flight equipment held for lease, net to Net investment in leases, net and Other assets		(720,064)	(601,331)
Asset Impairment Charges		$ (49,362)	$ (10,972)