Borrowings - Maturities of Long-Term Debt (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Feb. 28, 2025	Feb. 29, 2024	Nov. 30, 2024
Debt Instrument [Line Items]
Total	$ 14,785,553		$ 13,530,565
Long-term debt	$ 3,075,403		$ 2,351,346
Weighted-average interest rate	5.52%		5.30%
Gains (losses) recognized in interest expense on fair value hedge	$ (12,319)	$ (15,825)
Long-term debt
Debt Instrument [Line Items]
Gains (losses) recognized in interest expense on fair value hedge	(6,691)	(11,267)
Fair value, inputs, level 2 and level 3
Debt Instrument [Line Items]
Long-term debt	14,933,050		$ 13,734,421
Unsecured Debt
Debt Instrument [Line Items]
Total	12,745,317		12,076,096
Long-term debt gross	2,050,000		$ 2,040,000
Unsecured Debt \| Long-term debt
Debt Instrument [Line Items]
Gains (losses) recognized in interest expense on fair value hedge	$ (6,700)	$ (11,300)
Unsecured Debt \| Minimum
Debt Instrument [Line Items]
Interest rate range	0.00%		0.00%
Unsecured Debt \| Maximum
Debt Instrument [Line Items]
Interest rate range	7.52%		7.66%
Unsecured Debt \| Subsidiaries
Debt Instrument [Line Items]
Total	$ 32,856		$ 31,892
Secured Debt \| Secured Credit Facility
Debt Instrument [Line Items]
Total	1,180,000		775,300
Secured Debt \| Subsidiaries
Debt Instrument [Line Items]
Total	2,007,380		1,422,577
Fixed rate \| Unsecured Debt
Debt Instrument [Line Items]
2025	505,972		519,738
2026	798,366		818,819
2027	586,928		587,631
2028	1,056,475		1,031,076
2029	673,735		742,427
2030 and Later	4,748,818		4,561,814
Fixed rate \| Unsecured Debt \| Subsidiaries
Debt Instrument [Line Items]
2026	1,026		0
2027	352		0
2029	3,752		4,310
2030 and Later	1,264		1,347
Fixed rate \| Secured Debt \| Subsidiaries
Debt Instrument [Line Items]
2025	148,934		160,384
2026	42,429		42,643
2027	19,147		13,077
2028	54,284		35,135
2029	112,518		104,912
Variable rate \| Unsecured Debt
Debt Instrument [Line Items]
2025	350,000		0
2026	40,405		41,230
2027	574,959		570,432
2029	1,311		1,311
2030 and Later	852,851		850,273
Variable rate \| Unsecured Debt \| Subsidiaries
Debt Instrument [Line Items]
2026	26,462		26,235
Variable rate \| Secured Debt \| Subsidiaries
Debt Instrument [Line Items]
2026	836,010		792,400
2027	274,152		274,026
2028	519,906		0
Structured Notes \| Unsecured Debt
Debt Instrument [Line Items]
2025	152,123		157,638
2026	121,951		114,308
2027	97,529		97,758
2028	97,399		77,781
2029	329,635		316,139
2030 and Later	1,756,860		1,587,721
Long-term debt	$ 3,075,403		$ 2,351,346

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