Consolidated Statements Of Cash Flows - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2025	Sep. 30, 2024
OPERATING ACTIVITIES:
Net income		$ 428,018	$ 397,157
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses		40,145	19,395
Provision for depreciation and amortization		41,756	40,513
Amortization (accretion) of investment security premiums (discounts), net		(13,113)	2,781
Investment securities (gains) losses, net (A)	[1]	(731)	(6,846)
Net (gains) losses on sales of loans held for sale		(2,082)	(1,823)
Originations of loans held for sale		(90,432)	(73,502)
Proceeds from sales of loans held for sale		92,578	77,468
Net (increase) decrease in trading debt securities, excluding unsettled transactions		(26,588)	(25,771)
Stock-based compensation		12,858	12,731
(Increase) decrease in interest receivable		(4,889)	(4,878)
Increase (decrease) in interest payable		6,149	(2,564)
Increase (decrease) in income taxes payable		(21,405)	16,791
Other changes, net		(83,448)	263,062
Net cash provided by (used in) operating activities		378,816	714,514
INVESTING ACTIVITIES:
Proceeds from sales of investment securities (A)	[1]	46,628	1,272,927
Proceeds from maturities/pay downs of investment securities (A)	[1]	1,417,157	1,753,061
Purchases of investment securities (A)	[1]	(1,001,256)	(2,095,180)
Net (increase) decrease in loans		(598,897)	86,128
Securities purchased under agreements to resell		(350,000)	(350,000)
Repayments of securities purchased under agreements to resell		125,000	325,000
Purchases of premises and equipment		(39,011)	(32,114)
Sales of premises and equipment		100	8,858
Net cash provided by (used in) investing activities		(400,279)	968,680
FINANCING ACTIVITIES:
Net increase (decrease) in non-interest bearing, savings, interest checking and money market deposits		222,245	(17,928)
Net increase (decrease) in certificates of deposit		28,201	(250,608)
Net increase (decrease) in federal funds purchased and securities sold under agreements to repurchase		(453,693)	(726,586)
Net increase (decrease) in other borrowings		9,214	8,797
Purchases of treasury stock		(92,270)	(123,558)
Payments of Dividends		(114,001)	(110,484)
Proceeds from (Payment for) Other Financing Activity		(4)	0
Net cash provided by (used in) financing activities		(400,308)	(1,220,367)
Increase (decrease) in cash, cash equivalents and restricted cash		(421,771)	462,827
Cash, cash equivalents and restricted cash at beginning of year		3,375,992	2,687,283
Cash, cash equivalents and restricted cash at September 30		2,954,221	3,150,110
Supplemental Cash Flow Information:
Income tax payments, net		134,228	86,048
Interest paid on deposits and borrowings		275,251	329,117
Loans transferred to foreclosed real estate		$ 1,409	$ 1,138

[1] Available for sale debt securities, equity securities, and other securities.