SUPPLEMENTAL STATEMENT OF CASH FLOWS INFORMATION - Supplemental Cash Flow Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Cash paid for:
Interest			$ 143,792	$ 41,205
Income tax			88,258	22,943
Operating cash flow from operating leases			12,939	13,759
Non-cash investing and financing activities:
Additions to OREO			14,951	13,653
Additions to auto and other repossessed assets			48,245	33,119
Capitalization of servicing assets	$ 601	$ 679	1,839	2,637
Loan securitizations			100,735	113,757
Loans held for investment transferred to held for sale			3,255	3,893
Right-of-use asset obtained in exchange for operating lease liabilities			3,042	2,297
Payable related to unsettled common stock share repurchases			$ 1,310	$ 467