Credit Losses on Financial Assets Measured at Amortized Cost - Summary of Automobile Loans Held for Investment by Credit Score - Prior Year (Details) - Automobile Loan $ in Thousands	Nov. 30, 2022 USD ($)
Financing Receivable, Credit Quality Indicator [Line Items]
2022	$ 399,610
2021	277,149
2020	82,742
2019	70,992
2018	34,106
Prior Years	14,627
Total	$ 879,226
Percent	100.00%
Credit scores of 680 and above
Financing Receivable, Credit Quality Indicator [Line Items]
2022	$ 53,700
2021	46,668
2020	17,276
2019	16,560
2018	7,631
Prior Years	1,378
Total	$ 143,213
Percent	16.30%
Credit scores between 620 to 679
Financing Receivable, Credit Quality Indicator [Line Items]
2022	$ 170,220
2021	132,528
2020	44,095
2019	35,393
2018	17,635
Prior Years	7,647
Total	$ 407,518
Percent	46.30%
Credit scores below 620
Financing Receivable, Credit Quality Indicator [Line Items]
2022	$ 175,690
2021	97,953
2020	21,371
2019	19,039
2018	8,840
Prior Years	5,602
Total	$ 328,495
Percent	37.40%