Commitments and Contingent Liabilities - (Additional Information About Leases) (Details) $ in Thousands	6 Months Ended
	May 31, 2026 USD ($)	May 31, 2025 USD ($)	Nov. 30, 2025 USD ($)	Dec. 31, 2023 ft²
Contingencies
Right-of-use assets	$ 232,599		$ 269,011
Lease liabilities	$ 233,775		$ 264,157
Weighted-average remaining lease term (in years)	5 years 4 months 24 days		5 years 4 months 24 days
Weighted-average discount rate	4.60%		4.70%
Rental expense	$ 82,485	$ 102,628
Headquarters
Contingencies
Area of real estate property (sqft) | ft²				213,200
Leased Unused Office Space
Contingencies
Area of real estate property (sqft) | ft²				53,000