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Fees and Commissions, Other1

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[Line Items] for Revenue From Contracts With Customers [Table]

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Amount of realized and unrealized gain (loss) on investment.

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The gains (losses) included in earnings that represent the difference between the sale price and the carrying value of loans and leases that were sold during the reporting period. This element refers to the gain (loss) and not to the cash proceeds of the sales. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

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Represents the total of interest and dividend income, including any amortization and accretion (as applicable) of discounts and premiums, earned from (1) loans and leases whether held-for-sale or held-in-portfolio; (2) investment securities; (3) federal funds sold; (4) securities purchased under agreements to resell; (5) investments in banker's acceptances, commercial paper, or certificates of deposit; (6) dividend income; or (7) other investments not otherwise specified herein.

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The total amount of noninterest income which may be derived from: (1) fees and commissions; (2) premiums earned; (3) insurance policy charges; (4) the sale or disposal of assets; and (5) other sources not otherwise specified.

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Amount of revenue earned, classified as other, excluding interest income.

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The total amount of revenue recognized for the period from operating leases, including minimum lease revenue, contingent revenue, percentage revenue and sublease revenue.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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Revenue From Contracts With Customers Revenue From Contracts With Customers (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenue From Contracts With Customers [Line Items]
Total interest income	$ 272,176	$ 265,908	$ 274,075	$ 291,332	$ 293,593	$ 307,208	$ 314,533	$ 304,559	$ 1,103,491	$ 1,219,893	$ 1,161,670
Gain on sale of loans and leases									2,139	1,114	4,675
Gain on sale of securities	4	5,270	7,715	182	184	908	22,192	2,161	13,171	25,445	8,176
Service charges on deposit accounts									25,763	35,470	37,380
Other commissions and fees									40,347	43,623	45,543
Service charges on deposit accounts									10,351	14,637	16,509
Operating Leases, Income Statement, Lease Revenue									43,628	38,727	37,881
Other income									36,424	19,016	35,851
Total noninterest income	$ 39,850	$ 38,252	$ 38,858	$ 29,100	$ 27,176	$ 33,429	$ 50,893	$ 31,064	146,060	142,562	148,635
Total Income									1,249,551	1,362,455	1,310,305
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									10,351	14,637	16,509
Other Commissions And Fees
Revenue From Contracts With Customers [Line Items]
Service charges on deposit accounts									13,412	19,216	19,080
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									2,000	1,617	1,791
Noninterest Income [Member]
Revenue From Contracts With Customers [Line Items]
Service charges on deposit accounts									$ 25,763	$ 35,470	$ 37,380