Fair Value Of Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2022

Fair Value Of Financial Instruments [Abstract]

Fair value of financial instruments [Table Text Block]

	Carrying Amount		Estimated Fair Value at June 30, 2022
(In thousands)			Level 1		Level 2		Level 3		Total
Financial Assets
Loans:
Business	$	5,441,592	$	—	$	—	$	5,326,823	$	5,326,823
Real estate - construction and land	1,266,260		—		—		1,249,488		1,249,488
Real estate - business	3,215,578		—		—		3,128,428		3,128,428
Real estate - personal	2,836,835		—		—		2,686,693		2,686,693
Consumer	2,089,592		—		—		2,054,657		2,054,657
Revolving home equity	271,854		—		—		268,543		268,543
Consumer credit card	558,102		—		—		522,025		522,025
Overdrafts	6,814		—		—		6,704		6,704
Total loans	15,686,627		—		—		15,243,361		15,243,361
Loans held for sale	6,467		—		6,467		—		6,467
Investment securities	13,947,188		1,115,258		12,623,559		208,371		13,947,188
Federal funds sold	26,000		26,000		—		—		26,000
Securities purchased under agreements to resell	1,450,000		—		—		1,423,660		1,423,660
Interest earning deposits with banks	684,994		684,994		—		—		684,994
Cash and due from banks	355,524		355,524		—		—		355,524
Derivative instruments	12,404		—		12,088		316		12,404
Assets held in trust for deferred compensation plan	17,862		17,862		—		—		17,862
Total	$	32,187,066	$	2,199,638	$	12,642,114	$	16,875,708	$	31,717,460
Financial Liabilities
Non-interest bearing deposits	$	11,102,585	$	11,102,585	$	—	$	—	$	11,102,585
Savings, interest checking and money market deposits	16,063,064		16,063,064		—		—		16,063,064
Certificates of deposit	1,005,584		—		—		992,566		992,566
Federal funds purchased	7,750		7,750		—		—		7,750
Securities sold under agreements to repurchase	2,226,546		—		—		2,227,167		2,227,167
Other borrowings	4,390		—		4,390		—		4,390
Derivative instruments	27,599		—		27,437		162		27,599
Liabilities held in trust for deferred compensation plan	17,862		17,862		—		—		17,862
Total	$	30,455,380	$	27,191,261	$	31,827	$	3,219,895	$	30,442,983

	Carrying Amount		Estimated Fair Value at December 31, 2021
(In thousands)			Level 1		Level 2		Level 3		Total
Financial Assets
Loans:
Business	$	5,303,535	$	—	$	—	$	5,229,153	$	5,229,153
Real estate - construction and land	1,118,266		—		—		1,099,747		1,099,747
Real estate - business	3,058,837		—		—		3,054,481		3,054,481
Real estate - personal	2,805,401		—		—		2,809,490		2,809,490
Consumer	2,032,225		—		—		2,031,408		2,031,408
Revolving home equity	275,945		—		—		273,450		273,450
Consumer credit card	575,410		—		—		536,468		536,468
Overdrafts	6,740		—		—		6,458		6,458
Total loans	15,176,359		—		—		15,040,655		15,040,655
Loans held for sale	8,615		—		8,615		—		8,615
Investment securities	14,695,628		1,087,873		13,413,558		194,197		14,695,628
Federal funds sold	2,800		2,800		—		—		2,800
Securities purchased under agreements to resell	1,625,000		—		—		1,623,856		1,623,856
Interest earning deposits with banks	3,971,217		3,971,217		—		—		3,971,217
Cash and due from banks	305,539		305,539		—		—		305,539
Derivative instruments	41,842		—		40,994		848		41,842
Assets held in trust for deferred compensation plan	21,794		21,794		—		—		21,794
Total	$	35,848,794	$	5,389,223	$	13,463,167	$	16,859,556	$	35,711,946
Financial Liabilities
Non-interest bearing deposits	$	11,772,374	$	11,772,374	$	—	$	—	$	11,772,374
Savings, interest checking and money market deposits	16,598,085		16,598,085		—		—		16,598,085
Certificates of deposit	1,442,614		—		—		1,438,919		1,438,919
Federal funds purchased	43,385		43,385		—		—		43,385
Securities sold under agreements to repurchase	2,979,582		—		—		2,979,677		2,979,677
Other borrowings	12,514		—		12,514		—		12,514
Derivative instruments	12,101		—		11,824		277		12,101
Liabilities held in trust for deferred compensation plan	21,794		21,794		—		—		21,794
Total	$	32,882,449	$	28,435,638	$	24,338	$	4,418,873	$	32,878,849