Segments (Schedule Of Financial Information By Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024		Sep. 30, 2023
Segment Reporting Information [Line Items]
Net interest income	$ 262,351	$ 248,547	$ 773,599		$ 749,708
Provision for credit losses	(9,140)	(11,645)	(19,395)		(29,572)
Non-interest income	159,025	142,949	460,117		428,166
INVESTMENT SECURITIES GAINS (LOSSES), NET	3,872	4,298	6,846	[1]	7,384	[1]
Non-interest expense	(237,600)	(228,010)	(715,511)		(679,728)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	178,508	156,139	505,656		475,958
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Net interest income	(24,435)	(38,647)	(64,878)		(141,744)
Provision for credit losses	426	(1,873)	8,858		(6,568)
Non-interest income	6,381	1,437	10,185		6,270
INVESTMENT SECURITIES GAINS (LOSSES), NET	3,872	4,298	6,846		7,384
Non-interest expense	(9,822)	(7,917)	(47,180)		(26,752)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(23,578)	(42,702)	(86,169)		(161,410)
Consumer segment | Operating Segments
Segment Reporting Information [Line Items]
Net interest income	130,309	135,632	384,700		421,327
Provision for credit losses	(9,526)	(7,048)	(27,451)		(19,784)
Non-interest income	26,256	24,939	76,591		74,773
INVESTMENT SECURITIES GAINS (LOSSES), NET	0	0	0		0
Non-interest expense	(85,952)	(82,322)	(248,478)		(243,004)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	61,087	71,201	185,362		233,312
Commercial segment | Operating Segments
Segment Reporting Information [Line Items]
Net interest income	135,511	128,173	387,387		393,318
Provision for credit losses	(186)	(2,723)	(952)		(3,206)
Non-interest income	64,547	61,195	193,501		184,288
INVESTMENT SECURITIES GAINS (LOSSES), NET	0	0	0		0
Non-interest expense	(101,767)	(98,859)	(301,341)		(290,953)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	98,105	87,786	278,595		283,447
Wealth segment | Operating Segments
Segment Reporting Information [Line Items]
Net interest income	20,966	23,389	66,390		76,807
Provision for credit losses	146	(1)	150		(14)
Non-interest income	61,841	55,378	179,840		162,835
INVESTMENT SECURITIES GAINS (LOSSES), NET	0	0	0		0
Non-interest expense	(40,059)	(38,912)	(118,512)		(119,019)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	$ 42,894	$ 39,854	$ 127,868		$ 120,609

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