Revenues (Tables)

12 Months Ended

Dec. 31, 2020

Revenue Recognition [Abstract]

Disaggregation of Revenue [Table Text Block]

The Corporation's disaggregated revenue by major source is presented below:

	Corporate and Commercial Specialty
	For the Years Ended December 31,
($ in Thousands)	2020		2019		2018
Wealth management fees(a)	$	83,570	$	80,719	$	79,685
Service charges and deposit account fees	16,903		13,342		15,424
Card-based fees(b)	1,534		1,827		1,796
Insurance commissions and fees	208		364		349
Other revenue	3,462		1,647		997
Noninterest Income (in-scope of Topic 606)	$	105,678	$	97,899	$	98,251
Noninterest Income (out-of-scope of Topic 606)	43,778		38,198		33,820
Total Noninterest Income	$	149,456	$	136,097	$	132,071

	Community, Consumer, and Business
	For the Years Ended December 31,
($ in Thousands)	2020		2019		2018
Wealth management fees(a)	$	1,387	$	2,838	$	2,655
Service charges and deposit account fees	39,371		49,744		50,582
Card-based fees(b)	36,937		37,895		37,977
Insurance commissions and fees	45,027		88,727		89,123
Other revenue	19,053		9,462		9,887
Noninterest Income (in-scope of Topic 606)	$	141,775	$	188,666	$	190,225
Noninterest Income (out-of-scope of Topic 606)	43,962		35,046		22,486
Total Noninterest Income	$	185,737	$	223,712	$	212,711

	Risk Management and Share Services
	For the Years Ended December 31,
($ in Thousands)	2020		2019		2018
Wealth management fees(a)	$	—	$	(90)	$	222
Service charges and deposit account fees	33		49		69
Card-based fees(b)	134		190		37
Insurance commissions and fees	10		13		39
Other revenue	(1,552)		1,370		1,242
Noninterest Income (in-scope of Topic 606)	$	(1,375)	$	1,532	$	1,609
Noninterest Income (out-of-scope of Topic 606)(c)	180,237		19,483		9,176
Total Noninterest Income	$	178,862	$	21,015	$	10,785

	Consolidated Total
	For the Years Ended December 31,
($ in Thousands)	2020		2019		2018
Wealth management fees(a)	$	84,957	$	83,467	$	82,562
Service charges and deposit account fees	56,307		63,135		66,075
Card-based fees(b)	38,605		39,912		39,810
Insurance commissions and fees	45,245		89,104		89,511
Other revenue	20,963		12,629		12,126
Noninterest Income (in-scope of Topic 606)	$	246,077	$	288,247	$	290,084
Noninterest Income (out-of-scope of Topic 606)(c)	267,979		92,577		65,484
Total Noninterest Income	$	514,056	$	380,824	$	355,568

(a) Includes trust, asset management, brokerage, and annuity fees.

(b) Certain card-based fees are out-of-scope of Topic 606.

(c) The year ended December 31, 2020 includes a gain of $163 million from the sale of ABRC.

Revenue Recognition 606 [Text Block]

Below is a listing of performance obligations for the Corporation's main revenue streams:

Revenue Stream	Noninterest income in-scope of Topic 606
Service charges and deposit account fees	Service charges on deposit accounts consist of monthly service fees (i.e. business analyzed fees and consumer service charges) and other deposit account related fees. The Corporation's performance obligation for monthly service fees is generally satisfied, and the related revenue recognized, over the period in which the service is provided. Other deposit account related fees are largely transactional based, and therefore, the Corporation's performance obligation is satisfied, and related revenue recognized, at a point in time. Payment for service charges on deposit accounts is primarily received immediately or in the following month through a direct charge to the customers’ accounts.
Card-based fees(a)	Card-based fees are primarily comprised of debit and credit card income, ATM fees, and merchant services income. Debit and credit card income is primarily comprised of interchange fees earned whenever the Corporation's debit and credit cards are processed through card payment networks. ATM and merchant fees are largely transactional based, and therefore, the Corporation's performance obligation is satisfied, and related revenue recognized, at a point in time. Payment is typically received immediately or in the following month.
Trust and asset management fees(b)	Trust and asset management income is primarily comprised of fees earned from the management and administration of trusts and other customer assets. The Corporation's performance obligation is generally satisfied over time and the resulting fees are recognized monthly, based upon the month-end market value of the assets under management and the applicable fee rate. Payment is generally received a few days after month end through a direct charge to the customers’ accounts. The Corporation's performance obligation for these transactional-based services is generally satisfied, and related revenue recognized, at a point in time (i.e., as incurred). Payment is received shortly after services are rendered.
Brokerage and advisory fees(b)	Brokerage and advisory fees primarily consists of investment advisory, brokerage, retirement services, and annuities. The Corporation's performance obligation for investment advisory services and retirement services is generally satisfied, and the related revenue recognized, over the period in which the services are provided. The performance obligation for annuities is satisfied upon sale of the annuity, and therefore, the related revenue is primarily recognized at the time of sale. Payment for these services are typically received immediately or in advance of the service.

(a) Certain card-based fees are out-of-scope of Topic 606.

(b) Trust and asset management fees and brokerage and advisory fees are included in wealth management fees.