Flight Equipment Held for Lease, Net - Schedule of Flight Equipment Held for Sale (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2025	Aug. 31, 2024	Aug. 31, 2025	Aug. 31, 2024
Impaired Long-Lived Assets Held And Used [Roll Forward]
Balance, beginning of period			$ 7,644,867
Depreciation	$ (96,762)	$ (87,675)	(192,578)	$ (177,033)
Transfers from flight equipment held for lease to Net investment in leases and Other assets			7,289	6,310
Impairments	(31,153)	$ (5,761)	(36,219)	$ (10,972)
Balance, end of period	8,215,532		8,215,532
Flight Equipment
Impaired Long-Lived Assets Held And Used [Roll Forward]
Balance, beginning of period			7,644,867
Additions			1,026,899
Depreciation			(191,407)
Transfers from flight equipment held for lease to Net investment in leases and Other assets			(232,569)
Impairments			(32,258)
Balance, end of period	8,215,532		8,215,532
Accumulated depreciation	$ 1,901,384		$ 1,901,384