Revenue From Contracts With Customers Revenue From Contracts With Customers (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenue From Contracts With Customers [Line Items]
Total interest income	$ 1,556,489	$ 1,158,729	$ 1,103,491
Gain on sale of loans and leases	518	1,733	2,139
(Loss) gain on sale of securities	(50,321)	1,615	13,171
Service charges on deposit accounts	30,690	24,843	25,763
Other commissions and fees	43,635	42,287	40,347
Leased equipment income	50,586	45,746	43,628
Service charges on deposit accounts	13,991	13,269	10,351
Other income	17,317	16,821	10,831
Total noninterest income	74,827	193,927	146,060
Total Income	1,631,316	1,352,656	1,249,551
Dividends and (losses) gains on equity investments	(3,389)	23,115	14,984
Warrant income	2,490	49,341	10,609
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	13,991	13,269	10,351
Other Commissions And Fees
Revenue From Contracts With Customers [Line Items]
Service charges on deposit accounts	15,752	11,018	13,412
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	947	556	2,000
Noninterest Income [Member]
Revenue From Contracts With Customers [Line Items]
Service charges on deposit accounts	30,690	24,843	25,763
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