Consolidated Balance Sheets (Unaudited) - USD ($)	Sep. 30, 2022		Dec. 31, 2021
Assets
Cash and due from banks	$ 172,615,000		$ 141,581,000
Interest-earning deposits with banks	763,681,000		2,099,103,000
Securities
Trading	3,538,000		3,720,000
Equity	20,439,000		23,173,000
Available for sale (amortized cost $1,605,913 and $1,583,736)	1,425,511,000		1,571,148,000
Held to maturity (fair value $1,509,985 and $1,064,133)	1,697,635,000		1,066,818,000
Total securities	3,147,123,000		2,664,859,000
Loans held for sale (at fair value)	5,100,000		24,679,000
Loans
Total loans	13,700,350,000		13,587,286,000
Less: allowance for credit losses	(147,313,000)	[1]	(146,922,000)
Net loans	13,553,037,000		13,440,364,000
Federal Home Loan Bank stock	5,218,000		11,407,000
Bank premises and equipment, net	198,408,000		195,590,000
Goodwill	985,072,000		985,072,000
Other intangible assets	26,934,000		32,772,000
Cash surrender value of life insurance policies	293,126,000		289,304,000
Other assets	552,955,000		538,674,000
Total assets	19,703,269,000		20,423,405,000
Deposits
Noninterest-bearing demand deposits	5,622,260,000		5,479,503,000
Savings and interest checking accounts	6,094,493,000		6,350,016,000
Money market	3,443,622,000		3,556,375,000
Time certificates of deposit	1,178,619,000		1,531,150,000
Total deposits	16,338,994,000		16,917,044,000
Borrowings
Federal Home Loan Bank borrowings	643,000		25,667,000
Long-term Debt	0		14,063,000
Junior Subordinated Notes	62,855,000		62,853,000
Subordinated Debt	49,862,000		49,791,000
Total borrowings	113,360,000		152,374,000
Other liabilities	433,714,000		335,538,000
Total liabilities	16,886,068,000		17,404,956,000
Commitments and contingencies	0		0
Stockholders' equity
Preferred stock, $0.01 par value, authorized: 1,000,000 shares, outstanding: none	0		0
Common stock, $0.01 par value, authorized: 75,000,000 shares, issued and outstanding: 45,634,626 shares at September 30, 2022 and 47,349,778 shares at December 31, 2021 (includes 136,904 and 135,273 shares of unvested participating restricted stock awards, respectively)	454,000		472,000
Value of shares held in rabbi trust at cost: 82,617 shares at September 30, 2022 and 82,565 shares at December 31, 2021	(3,239,000)		(3,146,000)
Deferred compensation and other retirement benefit obligations	3,239,000		3,146,000
Additional paid in capital	2,113,313,000		2,249,078,000
Retained earnings	882,503,000		766,716,000
Accumulated other comprehensive income (loss), net of tax	(179,069,000)		2,183,000
Total stockholders’ equity	2,817,201,000		3,018,449,000
Total liabilities and stockholders' equity	19,703,269,000		20,423,405,000
Commercial And Industrial [Member]
Loans
Total loans	1,548,349,000		1,563,279,000
Less: allowance for credit losses	(20,169,000)	[1]	(14,402,000)
Commercial Real Estate [Member]
Loans
Total loans	7,677,917,000		7,992,344,000
Less: allowance for credit losses	(80,036,000)	[1]	(83,486,000)
Construction Loans [Member]
Loans
Total loans	1,185,157,000		1,165,457,000
Less: allowance for credit losses	(11,419,000)	[1]	(12,316,000)
Small Business [Member]
Loans
Total loans	209,567,000		193,189,000
Less: allowance for credit losses	(2,624,000)	[1]	(3,508,000)
Residential Real Estate [Member]
Loans
Total loans	1,959,254,000		1,604,686,000
Less: allowance for credit losses	(20,602,000)	[1]	(14,484,000)
Home Equity Loan [Member]
Loans
Less: allowance for credit losses	(11,651,000)	[1]	(17,986,000)
Consumer Portfolio Segment [Member]
Loans
Total loans	32,936,000		28,720,000
Less: allowance for credit losses	(812,000)	[1]	(740,000)
Senior Lien [Member] | Home Equity Loan [Member]
Loans
Total loans	578,405,000		589,550,000
Junior Lien [Member] | Home Equity Loan [Member]
Loans
Total loans	$ 508,765,000		$ 450,061,000

[1] Balances of accrued interest receivable excluded from amortized cost and the calculation of allowance for credit losses amounted to $42.7 million and $36.7 million as of September 30, 2022 and September 30, 2021, respectively.