Borrowings - Schedule of Maturities of Long-Term Debt (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Aug. 31, 2024	Aug. 31, 2023	Aug. 31, 2024	Aug. 31, 2023	Nov. 30, 2023
Debt Instrument [Line Items]
Total	$ 12,922,012		$ 12,922,012		$ 9,698,752
Long-term debt, fair value	$ 2,122,890		$ 2,122,890		$ 1,708,443
Weighted-average interest rate	5.61%		5.61%		5.52%
Gains (losses) recognized in interest expense on fair value hedge	$ (17,303)	$ (16,438)	$ (49,099)	$ (41,779)
Level 2 and Level 3
Debt Instrument [Line Items]
Long-term debt, fair value	13,090,184		13,090,184		$ 9,572,842
Long-term debt
Debt Instrument [Line Items]
Gains (losses) recognized in interest expense on fair value hedge	(61,068)	$ 30,345	(62,053)	23,068
Unsecured Debt
Debt Instrument [Line Items]
Total	11,294,137		11,294,137		8,497,300
Long-term debt, outstanding	2,050,000		2,050,000		1,990,000
Unsecured Debt | Subsidiaries
Debt Instrument [Line Items]
Total	33,410		33,410		$ 0
Unsecured Debt | Long-term debt
Debt Instrument [Line Items]
Gains (losses) recognized in interest expense on fair value hedge			$ (62,100)	$ 23,100
Unsecured Debt | Minimum
Debt Instrument [Line Items]
Interest rate range			0.25%		0.25%
Unsecured Debt | Maximum
Debt Instrument [Line Items]
Interest rate range			7.97%		8.21%
Secured Debt | Subsidiaries
Debt Instrument [Line Items]
Total	1,594,465		$ 1,594,465		$ 1,201,452
Secured Debt | Secured Credit Facility
Debt Instrument [Line Items]
Total	788,900		788,900		735,200
Fixed rate | Unsecured Debt
Debt Instrument [Line Items]
2024	0		0		544,222
2025	74,924		74,924		117,180
2026	871,569		871,569		90,315
2027	383,792		383,792		526,660
2028	1,030,332		1,030,332		1,028,966
2029 and Later	4,698,975		4,698,975		2,715,503
Fixed rate | Unsecured Debt | Subsidiaries
Debt Instrument [Line Items]
2029	6,662		6,662		0
Fixed rate | Secured Debt | Subsidiaries
Debt Instrument [Line Items]
2024	200,969		200,969		135,202
2025	81,264		81,264		117,814
2026	48,859		48,859		23,313
2027	7,098		7,098		4,412
2028	34,923		34,923		37,305
2029 and Later	100,858		100,858		0
Variable rate | Unsecured Debt
Debt Instrument [Line Items]
2025	0		0		350,000
2026	43,062		43,062		42,417
2027	721,781		721,781		562,833
2029 and Later	1,346,811		1,346,811		810,761
Variable rate | Unsecured Debt | Subsidiaries
Debt Instrument [Line Items]
2024	26,748		26,748		0
Variable rate | Secured Debt
Debt Instrument [Line Items]
2024	0		0		883,406
2025	0		0		0
Variable rate | Secured Debt | Subsidiaries
Debt Instrument [Line Items]
2026	856,545		856,545		0
2027	263,949		263,949		0
Structured notes | Unsecured Debt
Debt Instrument [Line Items]
2024	5,508		5,508		48,002
2025	100,231		100,231		40,868
2026	66,166		66,166		36,178
2027	61,794		61,794		83,306
2028	38,019		38,019		19,768
2029 and Later	1,851,173		1,851,173		1,480,321
Long-term debt, fair value	$ 2,122,890		$ 2,122,890		$ 1,708,443