Fair Value Of Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2020

Fair Value Of Financial Instruments [Abstract]

Fair value of financial instruments [Table Text Block]

	Carrying Amount		Estimated Fair Value at September 30, 2020
(In thousands)			Level 1		Level 2		Level 3		Total
Financial Assets
Loans:
Business	$	6,683,413	$	—	$	—	$	6,623,709	$	6,623,709
Real estate - construction and land	1,009,729		—		—		978,403		978,403
Real estate - business	2,993,192		—		—		2,986,961		2,986,961
Real estate - personal	2,753,867		—		—		2,766,421		2,766,421
Consumer	2,006,360		—		—		1,990,589		1,990,589
Revolving home equity	324,203		—		—		320,264		320,264
Consumer credit card	647,893		—		—		576,898		576,898
Overdrafts	2,270		—		—		2,227		2,227
Total loans	16,420,927		—		—		16,245,472		16,245,472
Loans held for sale	39,483		—		39,483		—		39,483
Investment securities	11,691,601		837,861		10,721,942		131,798		11,691,601
Federal funds sold	2,275		2,275		—		—		2,275
Securities purchased under agreements to resell	850,000		—		—		903,772		903,772
Interest earning deposits with banks	1,171,697		1,171,697		—		—		1,171,697
Cash and due from banks	357,616		357,616		—		—		357,616
Derivative instruments	147,850		—		144,273		3,577		147,850
Assets held in trust for deferred compensation plan	17,294		17,294		—		—		17,294
Total	$	30,698,743	$	2,386,743	$	10,905,698	$	17,284,619	$	30,577,060
Financial Liabilities
Non-interest bearing deposits	$	10,727,827	$	10,727,827	$	—	$	—	$	10,727,827
Savings, interest checking and money market deposits	12,983,505		12,983,505		—		—		12,983,505
Certificates of deposit	1,990,447		—		—		2,002,118		2,002,118
Federal funds purchased	6,770		6,770		—		—		6,770
Securities sold under agreements to repurchase	1,646,294		—		—		1,646,338		1,646,338
Derivative instruments	20,370		—		19,185		1,185		20,370
Liabilities held in trust for deferred compensation plan	17,294		17,294		—		—		17,294
Total	$	27,392,507	$	23,735,396	$	19,185	$	3,649,641	$	27,404,222

	Carrying Amount		Estimated Fair Value at December 31, 2019
(In thousands)			Level 1		Level 2		Level 3		Total
Financial Assets
Loans:
Business	$	5,565,449	$	—	$	—	$	5,526,303	$	5,526,303
Real estate - construction and land	899,377		—		—		898,152		898,152
Real estate - business	2,833,554		—		—		2,849,213		2,849,213
Real estate - personal	2,354,760		—		—		2,333,002		2,333,002
Consumer	1,964,145		—		—		1,938,505		1,938,505
Revolving home equity	349,251		—		—		344,424		344,424
Consumer credit card	764,977		—		—		708,209		708,209
Overdrafts	6,304		—		—		4,478		4,478
Total loans	14,737,817		—		—		14,602,286		14,602,286
Loans held for sale	13,809		—		13,809		—		13,809
Investment securities	8,741,888		854,705		7,738,158		149,025		8,741,888
Securities purchased under agreements to resell	850,000		—		—		869,592		869,592
Interest earning deposits with banks	395,850		395,850		—		—		395,850
Cash and due from banks	491,615		491,615		—		—		491,615
Derivative instruments	105,674		—		105,075		599		105,674
Assets held in trust for deferred compensation plan	16,518		16,518		—		—		16,518
Total	$	25,353,171	$	1,758,688	$	7,857,042	$	15,621,502	$	25,237,232
Financial Liabilities
Non-interest bearing deposits	$	6,890,687	$	6,890,687	$	—	$	—	$	6,890,687
Savings, interest checking and money market deposits	11,621,716		11,621,716		—		—		11,621,716
Certificates of deposit	2,008,012		—		—		2,022,629		2,022,629
Federal funds purchased	20,035		20,035		—		—		20,035
Securities sold under agreements to repurchase	1,830,737		—		—		1,831,518		1,831,518
Other borrowings	988		—		988		—		988
Derivative instruments	10,219		—		9,989		230		10,219
Liabilities held in trust for deferred compensation plan	16,518		16,518		—		—		16,518
Total	$	22,398,912	$	18,548,956	$	10,977	$	3,854,377	$	22,414,310