Premises and Equipment (Premises and Equipment) (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Abstract]
Land	$ 191,594	$ 170,938
Buildings	581,745	521,280
Technology, furniture and equipment	262,666	236,440
Leasehold improvements	230,642	209,398
Construction and projects in progress	36,910	39,506
Operating lease, right-of-use asset	280,502	288,816
Premises and equipment, Gross	1,584,059	1,466,378
Less accumulated depreciation and amortization	(394,026)	(363,683)
Total premises and equipment, net	$ 1,190,033	$ 1,102,695