Deposits (Scheduled Maturities of Time Deposits Not Covered By Deposit Insurance) (Detail) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Deposits [Abstract]
Due within 3 months or less	$ 2,640,131
Due after 3 months and within 6 months	95,944
Due after 6 months and within 12 months	115,380
Due after 12 months	25,798
Time deposits liability, above US Insurance Limit Total	$ 2,877,253	$ 2,744,112