Fair Value Of Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2023

Fair Value Of Financial Instruments [Abstract]

Fair value of financial instruments [Table Text Block]

	Carrying Amount		Estimated Fair Value at June 30, 2023
(In thousands)			Level 1		Level 2		Level 3		Total
Financial Assets
Loans:
Business	$	5,906,493	$	—	$	—	$	5,725,065	$	5,725,065
Real estate - construction and land	1,451,783		—		—		1,431,727		1,431,727
Real estate - business	3,621,222		—		—		3,470,492		3,470,492
Real estate - personal	2,980,599		—		—		2,671,283		2,671,283
Consumer	2,110,605		—		—		2,044,119		2,044,119
Revolving home equity	303,845		—		—		300,823		300,823
Consumer credit card	574,755		—		—		542,739		542,739
Overdrafts	7,237		—		—		7,045		7,045
Total loans	16,956,539		—		—		16,193,293		16,193,293
Loans held for sale	6,776		—		6,776		—		6,776
Investment securities	10,707,602		951,335		9,497,302		258,965		10,707,602
Federal funds sold	2,750		2,750		—		—		2,750
Securities purchased under agreements to resell	825,000		—		—		808,605		808,605
Interest earning deposits with banks	2,568,695		2,568,695		—		—		2,568,695
Cash and due from banks	366,699		366,699		—		—		366,699
Derivative instruments	104,936		—		104,843		93		104,936
Assets held in trust for deferred compensation plan	19,482		19,482		—		—		19,482
Total	$	31,558,479	$	3,908,961	$	9,608,921	$	17,260,956	$	30,778,838
Financial Liabilities
Non-interest bearing deposits	$	8,198,849	$	8,198,849	$	—	$	—	$	8,198,849
Savings, interest checking and money market deposits	14,418,974		14,418,974		—		—		14,418,974
Certificates of deposit	3,251,621		—		—		3,262,639		3,262,639
Federal funds purchased	511,400		511,400		—		—		511,400
Securities sold under agreements to repurchase	2,366,621		—		—		2,369,489		2,369,489
Other borrowings	1,004,878		—		4,878		1,000,000		1,004,878
Derivative instruments	51,998		—		51,910		88		51,998
Liabilities held in trust for deferred compensation plan	19,482		19,482		—		—		19,482
Total	$	29,823,823	$	23,148,705	$	56,788	$	6,632,216	$	29,837,709

	Carrying Amount		Estimated Fair Value at December 31, 2022
(In thousands)			Level 1		Level 2		Level 3		Total
Financial Assets
Loans:
Business	$	5,661,725	$	—	$	—	$	5,506,128	$	5,506,128
Real estate - construction and land	1,361,095		—		—		1,347,328		1,347,328
Real estate - business	3,406,981		—		—		3,289,655		3,289,655
Real estate - personal	2,918,078		—		—		2,654,423		2,654,423
Consumer	2,059,088		—		—		1,999,788		1,999,788
Revolving home equity	297,207		—		—		295,005		295,005
Consumer credit card	584,000		—		—		538,268		538,268
Overdrafts	14,957		—		—		14,666		14,666
Total loans	16,303,131		—		—		15,645,261		15,645,261
Loans held for sale	4,964		—		4,964		—		4,964
Investment securities	12,511,649		1,041,616		11,244,592		225,441		12,511,649
Federal funds sold	49,505		49,505		—		—		49,505
Securities purchased under agreements to resell	825,000		—		—		795,574		795,574
Interest earning deposits with banks	389,140		389,140		—		—		389,140
Cash and due from banks	452,496		452,496		—		—		452,496
Derivative instruments	60,492		—		60,458		34		60,492
Assets held in trust for deferred compensation plan	17,856		17,856		—		—		17,856
Total	$	30,614,233	$	1,950,613	$	11,310,014	$	16,666,310	$	29,926,937
Financial Liabilities
Non-interest bearing deposits	$	10,066,356	$	10,066,356	$	—	$	—	$	10,066,356
Savings, interest checking and money market deposits	15,126,981		15,126,981		—		—		15,126,981
Certificates of deposit	994,103		—		—		982,613		982,613
Federal funds purchased	159,860		159,860		—		—		159,860
Securities sold under agreements to repurchase	2,681,874		—		—		2,684,471		2,684,471
Other borrowings	8,831		—		8,831		—		8,831
Derivative instruments	54,984		—		54,865		119		54,984
Liabilities held in trust for deferred compensation plan	17,856		17,856		—		—		17,856
Total	$	29,110,845	$	25,371,053	$	63,696	$	3,667,203	$	29,101,952