Consolidated Statements Of Cash Flows - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2025	Mar. 31, 2024
OPERATING ACTIVITIES:
Net income		$ 130,633	$ 115,452
Provision for credit losses		14,487	4,787
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for depreciation and amortization		13,721	13,269
Amortization of investment security premiums, net		(3,724)	3,905
Investment securities (gains) losses, net (A)	[1]	7,591	259
Net (gains) losses on sales of loans held for sale		(515)	(328)
Originations of loans held for sale		(22,626)	(15,914)
Proceeds from sales of loans held for sale		23,357	18,007
Net (increase) decrease in trading debt securities, excluding unsettled transactions		(21,277)	(40,529)
Stock-based compensation		4,426	4,266
(Increase) decrease in interest receivable		5,149	561
Increase (decrease) in interest payable		5,432	(286)
Increase (decrease) in income taxes payable		35,134	28,750
Other changes, net		(53,184)	3,277
Net cash provided by (used in) operating activities		138,604	135,476
INVESTING ACTIVITIES:
Proceeds from sales of investment securities (A)	[1]	6,757	10,250
Proceeds from maturities/pay downs of investment securities (A)	[1]	542,456	571,764
Purchases of investment securities (A)	[1]	(514,579)	(155,475)
Net (increase) decrease in loans		(170,573)	(102,295)
Securities purchased under agreements to resell		(350,000)	(100,000)
Repayments of securities purchased under agreements to resell		125,000	325,000
Purchases of premises and equipment		(12,586)	(10,998)
Sales of premises and equipment		100	2,671
Net cash provided by (used in) investing activities		(373,425)	540,917
FINANCING ACTIVITIES:
Net increase (decrease) in non-interest bearing, savings, interest checking and money market deposits		774,974	(571,329)
Net increase (decrease) in certificates of deposit		(40,133)	(412,170)
Net increase (decrease) in federal funds purchased and securities sold under agreements to repurchase		(526,722)	(403,239)
Net increase (decrease) in other borrowings		17,687	955
Purchases of treasury stock		(55,184)	(42,028)
Payments of Dividends		(37,886)	(35,140)
Proceeds from (Payments for) Other Financing Activities		(2)	0
Net cash provided by (used in) financing activities		132,734	(1,462,951)
Increase (decrease) in cash, cash equivalents and restricted cash		(102,087)	(786,558)
Cash, cash equivalents and restricted cash at beginning of year		3,375,992	2,687,283
Cash, cash equivalents and restricted cash at March 31		3,273,905	1,900,725
Supplemental Cash Flow Information:
Income tax payments, net		562	1,029
Interest paid on deposits and borrowings		89,831	110,008
Loans transferred to foreclosed real estate		$ 449	$ 57

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