Fair Value Measurements - Carrying Amounts and Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Nov. 30, 2025	Feb. 28, 2025
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Other investments net allowance for credit loss writeoff	$ 0	$ 4,099
Significant Unobservable Inputs (Level 3) | Reported Value Measurement | Debt Securities
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Investment	6,311	9,912
Significant Unobservable Inputs (Level 3) | Reported Value Measurement | Other Investments
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Investment	728	4,916
Significant Unobservable Inputs (Level 3) | Estimate of Fair Value Measurement | Debt Securities
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Investment	6,311	9,912
Significant Unobservable Inputs (Level 3) | Estimate of Fair Value Measurement | Other Investments
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Investment	728	4,916
Unsecured Debt | Quoted Prices in Active Markets for Identical Assets (Level 1) | Reported Value Measurement | Senior Notes
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt instruments	4,350,000	4,350,000
Unsecured Debt | Quoted Prices in Active Markets for Identical Assets (Level 1) | Estimate of Fair Value Measurement | Senior Notes
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt instruments	4,432,652	4,387,341
Unsecured Debt | Significant Other Observable Inputs (Level 2) | Reported Value Measurement | Revolving Credit Facility
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt instruments	315,000	150,000
Unsecured Debt | Significant Other Observable Inputs (Level 2) | Reported Value Measurement | Secured Term Financings
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt instruments	600,000	0
Unsecured Debt | Significant Other Observable Inputs (Level 2) | Estimate of Fair Value Measurement | Revolving Credit Facility
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt instruments	315,000	150,000
Unsecured Debt | Significant Other Observable Inputs (Level 2) | Estimate of Fair Value Measurement | Secured Term Financings
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt instruments	600,000	0
Secured Debt | Significant Other Observable Inputs (Level 2) | Reported Value Measurement | Secured Term Financings
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt instruments	115,011	509,104
Secured Debt | Significant Other Observable Inputs (Level 2) | Estimate of Fair Value Measurement | Secured Term Financings
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt instruments	$ 107,847	$ 513,161