FAIR VALUE MEASUREMENTS - Summary of Financial Assets and Financial Liabilities Measured at Fair Value on a Recurring Basis (Detail) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Assets
Loans held for sale	$ 1,024,984	$ 594,998
Pledged securities	203,945	184,081
Derivative assets	33,699	31,451
Liabilities
Derivative liabilities	4,026	28,247
Recurring Basis
Assets
Loans held for sale	1,024,984	594,998
Pledged securities	203,945	184,081
Derivative assets	33,699	31,451
Total financial assets	1,262,628	810,530
Liabilities
Derivative liabilities	4,026	28,247
Contingent consideration liabilities	79,359	113,546
Total financial liabilities	83,385	141,793
Level 1 | Recurring Basis
Assets
Pledged securities	47,054	41,283
Total financial assets	47,054	41,283
Level 2 | Recurring Basis
Assets
Loans held for sale	1,024,984	594,998
Pledged securities	156,891	142,798
Total financial assets	1,181,875	737,796
Level 3 | Recurring Basis
Assets
Derivative assets	33,699	31,451
Total financial assets	33,699	31,451
Liabilities
Derivative liabilities	4,026	28,247
Contingent consideration liabilities	79,359	113,546
Total financial liabilities	$ 83,385	$ 141,793