OTHER BORROWINGS - Additional information (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Short Term Debt [Line Items]
Loans held for investment	$ 12,185,483	$ 11,552,825
Asset Pledged as Collateral [Member]
Short Term Debt [Line Items]
Loans held for investment	4,600,000	4,300,000
Federal Reserve Bank Advances [Member] | Asset Pledged as Collateral [Member]
Short Term Debt [Line Items]
Loans held for investment	2,500,000	$ 2,200,000
FED Bank Term Funding Program [Member]
Short Term Debt [Line Items]
FED funds availability	$ 2,100