Revenue From Contracts With Customers Revenue From Contracts With Customers (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenue From Contracts With Customers [Line Items]
Total interest income	$ 1,812,705	$ 1,971,000	$ 1,556,489
Gain (loss) on sale of loans and leases	645	(161,346)	518
Loss on sale of securities	(60,400)	(442,413)	(50,321)
Service charges on deposit accounts	37,224	33,767	30,690
Other commissions and fees	33,258	38,086	43,635
Leased equipment income	51,109	63,167	50,586
Service charges on deposit accounts	18,583	16,468	13,991
Other income	25,345	31,201	17,317
Total noninterest income (loss)	77,145	(448,285)	74,827
Total Income	1,889,850	1,522,715	1,631,316
Dividends and gains (losses) on equity investments	7,982	15,731	(3,389)
Warrant income (loss)	408	(718)	2,490
LOCOM HFS Adjustment	215	(8,461)	0
Interest [Member]
Revenue From Contracts With Customers [Line Items]
Service charges on deposit accounts	0	0	0
Service Charges On Deposit Accounts
Revenue From Contracts With Customers [Line Items]
Service charges on deposit accounts	18,583	16,468	13,991
Other Commissions And Fees
Revenue From Contracts With Customers [Line Items]
Service charges on deposit accounts	18,052	16,597	15,752
Lease Equipment Income [Member]
Revenue From Contracts With Customers [Line Items]
Service charges on deposit accounts	0	0	0
Gain On Sale Of Loans [Member]
Revenue From Contracts With Customers [Line Items]
Service charges on deposit accounts	0	0	0
Gain On Sale Of Securities [Member]
Revenue From Contracts With Customers [Line Items]
Service charges on deposit accounts	0	0	0
Other [Member]
Revenue From Contracts With Customers [Line Items]
Service charges on deposit accounts	589	702	947
Noninterest Income [Member]
Revenue From Contracts With Customers [Line Items]
Service charges on deposit accounts	37,224	33,767	30,690
Dividends and Gains (Losses) on Equity Investments
Revenue From Contracts With Customers [Line Items]
Service charges on deposit accounts	0	0	0
Warranty Income
Revenue From Contracts With Customers [Line Items]
Service charges on deposit accounts	0	0	0
LOCOM Held For Sale Adjustment
Revenue From Contracts With Customers [Line Items]
Service charges on deposit accounts	$ 0	$ 0	$ 0