Consolidated Balance Sheets (Unaudited) - USD ($)		Jun. 30, 2023		Dec. 31, 2022
Assets
Cash and due from banks		$ 181,810,000		$ 175,843,000
Interest-earning deposits with banks		126,454,000		177,090,000
Securities
Trading		4,477,000		3,888,000
Equity		21,800,000		21,119,000
Debt Securities, Available-for-Sale, Excluding Accrued Interest		1,372,903,000		1,399,154,000
Held to maturity (fair value $1,444,084 and $1,524,710)		1,623,892,000		1,705,120,000
Total securities		3,023,072,000		3,129,281,000
Loans held for sale (at fair value)		6,577,000		2,803,000
Loans
Total loans		14,139,911,000	[1]	13,928,675,000
Less: allowance for credit losses		(140,647,000)	[2]	(152,419,000)
Net loans		13,999,264,000		13,776,256,000
Federal Home Loan Bank stock		39,488,000		5,218,000
Bank premises and equipment, net		193,642,000		196,504,000
Goodwill		985,072,000		985,072,000
Other intangible assets		21,537,000		25,068,000
Cash surrender value of life insurance policies		296,687,000		293,323,000
Other assets		527,328,000		527,716,000
Total assets		19,400,931,000		19,294,174,000
Deposits
Noninterest-bearing demand deposits		4,861,092,000		5,441,584,000
Savings and interest checking accounts		5,525,223,000		5,898,009,000
Money market		3,065,520,000		3,343,673,000
Time certificates of deposit		1,796,216,000		1,195,741,000
Total deposits		15,248,051,000		15,879,007,000
Borrowings
Federal Home Loan Bank borrowings		788,479,000		637,000
Junior Subordinated Notes		62,857,000		62,855,000
Subordinated Debt		49,933,000		49,885,000
Total borrowings		901,269,000		113,377,000
Other liabilities		396,697,000		415,089,000
Total liabilities		16,546,017,000		16,407,473,000
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: 44,130,901 shares at June 30, 2023 and 45,641,238 shares at December 31, 2022 (includes 168,934 and 135,712 shares of unvested participating restricted stock awards, respectively)		440,000		455,000
Value of shares held in rabbi trust at cost: 80,955 shares at June 30, 2023 and 80,965 shares at December 31, 2022		(3,289,000)		(3,227,000)
Deferred compensation and other retirement benefit obligations		3,289,000		3,227,000
Additional paid in capital		1,997,674,000		2,114,888,000
Retained earnings		1,009,735,000		934,442,000
Accumulated other comprehensive loss, net of tax		(152,935,000)		(163,084,000)
Total stockholders’ equity		2,854,914,000		2,886,701,000
Total liabilities and stockholders' equity		19,400,931,000		19,294,174,000
Commercial And Industrial [Member]
Loans
Total loans		1,723,219,000	[1]	1,635,103,000
Less: allowance for credit losses		(15,142,000)	[2]	(27,559,000)
Commercial Real Estate [Member]
Loans
Total loans		7,812,796,000	[1]	7,760,230,000
Less: allowance for credit losses		(78,396,000)	[2]	(77,799,000)
Construction Loans [Member]
Loans
Total loans		1,022,796,000	[1]	1,154,413,000
Less: allowance for credit losses		(9,038,000)	[2]	(10,762,000)
Small Business [Member]
Loans
Total loans		237,092,000	[1]	219,102,000
Less: allowance for credit losses		(3,606,000)	[2]	(2,834,000)
Residential Real Estate [Member]
Loans
Total loans		2,221,284,000	[1]	2,035,524,000
Less: allowance for credit losses		(21,465,000)	[2]	(20,973,000)
Home Equity Loan [Member]
Loans
Total loans	[1]	1,095,398,000
Less: allowance for credit losses		(12,433,000)	[2]	(11,504,000)
Consumer Portfolio Segment [Member]
Loans
Total loans		27,326,000		35,553,000
Less: allowance for credit losses		(567,000)	[2]	(988,000)
Senior Lien [Member] | Home Equity Loan [Member]
Loans
Total loans		546,240,000		566,166,000
Junior Lien [Member] | Home Equity Loan [Member]
Loans
Total loans		$ 549,158,000		$ 522,584,000

[1] Loan origination dates in the tables above reflect the original origination date, or the date of a material modification of a previously originated loan.

[2] Balances of accrued interest receivable excluded from amortized cost and the calculation of allowance for credit losses amounted to $54.0 million and $39.0 million as of June 30, 2023 and June 30, 2022, respectively.