The estimated fair values of the Company’s financial instruments and the classification of their fair value measurements within the valuation hierarchy are as follows at December 31, 2018 and 2017:



	Carrying Amount		Estimated Fair Value at December 31, 2018
(In thousands)			Level 1		Level 2		Level 3		Total
Financial Assets
Loans:
Business	$	5,106,427	$	—	$	—	$	5,017,694	$	5,017,694
Real estate - construction and land	869,659		—		—		868,274		868,274
Real estate - business	2,875,788		—		—		2,846,095		2,846,095
Real estate - personal	2,127,083		—		—		2,084,370		2,084,370
Consumer	1,955,572		—		—		1,916,627		1,916,627
Revolving home equity	376,399		—		—		365,069		365,069
Consumer credit card	814,134		—		—		756,651		756,651
Overdrafts	15,236		—		—		11,223		11,223
Total loans	14,140,298		—		—		13,866,003		13,866,003
Loans held for sale	20,694		—		20,694		—		20,694
Investment securities	8,698,666		910,237		7,643,290		145,139		8,698,666
Federal funds sold	3,320		3,320		—		—		3,320
Securities purchased under agreements to resell	700,000		—		—		693,228		693,228
Interest earning deposits with banks	689,876		689,876		—		—		689,876
Cash and due from banks	507,892		507,892		—		—		507,892
Derivative instruments	41,210		—		40,627		583		41,210
Assets held in trust for deferred compensation plan	12,968		12,968		—		—		12,968
Total	$	24,814,924	$	2,124,293	$	7,704,611	$	14,704,953	$	24,533,857
Financial Liabilities
Non-interest bearing deposits	$	6,980,298	$	6,980,298	$	—	$	—	$	6,980,298
Savings, interest checking and money market deposits	11,685,239		11,685,239		—		—		11,685,239
Certificates of deposit	1,658,122		—		—		1,663,748		1,663,748
Federal funds purchased	13,170		13,170		—		—		13,170
Securities sold under agreements to repurchase	1,943,219		—		—		1,944,458		1,944,458
Other borrowings	8,702		—		—		8,702		8,702
Derivative instruments	13,421		—		13,328		93		13,421
Liabilities held in trust for deferred compensation plan	12,968		12,968		—		—		12,968
Total	$	22,315,139	$	18,691,675	$	13,328	$	3,617,001	$	22,322,004



	Carrying Amount		Estimated Fair Value at December 31, 2017
(In thousands)			Level 1		Level 2		Level 3		Total
Financial Assets
Loans:
Business	$	4,958,554	$	—	$	—	$	4,971,401	$	4,971,401
Real estate - construction and land	968,820		—		—		979,389		979,389
Real estate - business	2,697,452		—		—		2,702,598		2,702,598
Real estate - personal	2,062,787		—		—		2,060,443		2,060,443
Consumer	2,104,487		—		—		2,074,129		2,074,129
Revolving home equity	400,587		—		—		400,333		400,333
Consumer credit card	783,864		—		—		798,093		798,093
Overdrafts	7,123		—		—		7,123		7,123
Total loans	13,983,674		—		—		13,993,509		13,993,509
Loans held for sale	21,398		—		21,398		—		21,398
Investment securities	8,893,307		937,011		7,838,522		117,774		8,893,307
Federal funds sold	42,775		42,775		—		—		42,775
Securities purchased under agreements to resell	700,000		—		—		695,194		695,194
Interest earning deposits with banks	30,631		30,631		—		—		30,631
Cash and due from banks	438,439		438,439		—		—		438,439
Derivative instruments	8,349		—		7,723		626		8,349
Assets held in trust for deferred compensation plan	12,843		12,843		—		—		12,843
Total	$	24,131,416	$	1,461,699	$	7,867,643	$	14,807,103	$	24,136,445
Financial Liabilities
Non-interest bearing deposits	$	7,158,962	$	7,158,962	$	—	$	—	$	7,158,962
Savings, interest checking and money market deposits	11,499,620		11,499,620		—		—		11,499,620
Certificates of deposit	1,766,864		—		—		1,768,780		1,768,780
Federal funds purchased	202,370		202,370		—		—		202,370
Securities sold under agreements to repurchase	1,304,768		—		—		1,305,375		1,305,375
Other borrowings	1,758		—		—		1,758		1,758
Derivative instruments	8,074		—		7,951		123		8,074
Liabilities held in trust for deferred compensation plan	12,843		12,843		—		—		12,843
Total	$	21,955,259	$	18,873,795	$	7,951	$	3,076,036	$	21,957,782