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Investments - Summary of Selected Financial Information for Berkadia (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
May 31, 2026
May 31, 2025
May 31, 2026
May 31, 2025
Nov. 30, 2025
Schedule of Equity Method Investments [Line Items]          
Total assets $ 79,539,946   $ 79,539,946   $ 76,012,347
Total liabilities 68,932,155   68,932,155   65,369,738
Total noncontrolling interest 40,389   40,389   67,507
Net earnings 249,978 $ 91,395 409,324 $ 228,244  
Berkadia          
Schedule of Equity Method Investments [Line Items]          
Our total investment balance 432,600   432,600   429,700
Distributions we received 5,400 10,900 26,600 27,000  
Berkadia          
Schedule of Equity Method Investments [Line Items]          
Total assets 5,360,500   5,360,500   5,269,800
Total liabilities 3,868,100   3,868,100   3,953,100
Total noncontrolling interest 540,100   540,100   $ 369,000
Net earnings $ 26,500 $ 44,200 $ 66,900 $ 82,000