Fair Value Measurements - Narrative (Details) $ in Thousands	3 Months Ended			6 Months Ended
	Aug. 31, 2025 USD ($) Lessee aircraft	May 31, 2025 USD ($) aircraft	Aug. 31, 2024 USD ($)	Aug. 31, 2025 USD ($)	Aug. 31, 2024 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Transfers, net				$ 0
Impairment of flight equipment	$ 31,153		$ 5,761	36,219	$ 10,972
Gain on sale or disposition of flight equipment	23,889		35,416	54,178	36,426
Revenue from contract with customer, excluding assessed tax	$ 227,510		$ 216,668	487,354	$ 421,841
Number of Customers Entering Bankruptcy | Lessee	2
Transactional
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impairment of flight equipment		$ 5,100
Transactional | Narrow-body
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of aircrafts impaired | aircraft		1
Transactional | Narrow-body - Freighter
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of aircrafts impaired | aircraft	1
Customer Bankruptcy
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impairment of flight equipment				22,400
Maintenance Payments
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Revenue from contract with customer, excluding assessed tax		$ 18,700		$ 4,900