Consolidated Balance Sheets - USD ($) $ in Thousands		Dec. 31, 2023	Dec. 31, 2022
Assets
Cash and due from banks		$ 178,861	$ 175,843
Interest-earning deposits with banks		45,469	177,090
Debt Securities, Trading		4,987	3,888
Securities
Equity Securities, FV-NI		22,510	21,119
Debt Securities, Available-for-Sale		1,334,256	1,399,154
Held to maturity (fair value $1,417,608 and $1,524,710)		1,569,107	1,705,120
Total securities		2,930,860	3,129,281
Loans Receivable Held-for-sale, Net, Not Part of Disposal Group		6,368	2,803
Loans
Financing Receivable, before Allowance for Credit Loss		14,278,070	13,928,675
Less: allowance for credit losses		(142,222)	(152,419)
Net loans		14,135,848	13,776,256
Federal Home Loan Bank stock		43,557	5,218
Bank premises and equipment, net		193,049	196,504
Other intangible assets		18,190	25,068
Cash surrender value of life insurance policies		297,387	293,323
Other assets		512,712	527,716
Total assets		19,347,373	19,294,174
Deposits
Noninterest-bearing demand deposits		4,567,083	5,441,584
Savings and interest checking accounts		5,298,913	5,898,009
Money market		2,818,072	3,343,673
Time Deposits		2,181,479	1,195,741
Total deposits		14,865,547	15,879,007
Borrowings
Federal Home Loan Bank borrowings		1,105,541	637
Junior subordinated debentures (less unamortized debt issuance costs of $30 and $33)		62,858	62,855
Subordinated debentures (less unamortized debt issuance costs of $20 and $115)		49,980	49,885
Total borrowings		1,218,379	113,377
Other liabilities		368,196	415,089
Total liabilities		16,452,122	16,407,473
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: 42,873,187 shares at December 31, 2023 and 45,641,238 shares at December 31, 2022 (includes 162,812 and 135,712 shares of unvested participating restricted stock awards, respectively)		427	455
Value of shares held in rabbi trust at cost: 80,222 shares at December 31, 2023 and 80,965 shares at December 31, 2022		(3,298)	(3,227)
Compensation and Benefits Trust		3,298	3,227
Additional paid in capital		1,932,163	2,114,888
Retained earnings		1,077,488	934,442
Accumulated other comprehensive loss, net of tax		(114,827)	(163,084)
Total stockholders' equity		2,895,251	2,886,701
Liabilities and Equity		19,347,373	19,294,174
Commercial And Industrial [Member]
Loans
Financing Receivable, before Allowance for Credit Loss		1,579,986	1,635,103
Commercial Real Estate [Member]
Loans
Financing Receivable, before Allowance for Credit Loss		8,041,508	7,760,230
Construction Loans [Member]
Loans
Financing Receivable, before Allowance for Credit Loss		849,586	1,154,413
Small Business [Member]
Loans
Financing Receivable, before Allowance for Credit Loss		251,956	219,102
Residential Real Estate [Member]
Loans
Financing Receivable, before Allowance for Credit Loss		2,424,754	2,035,524
Home Equity 1st Position [Member] | Senior Lien [Member]
Loans
Financing Receivable, before Allowance for Credit Loss		518,706	566,166
Home Equity Subordinate Position [Member] | Junior Lien [Member]
Loans
Financing Receivable, before Allowance for Credit Loss		578,920	522,584
Consumer Portfolio Segment [Member]
Loans
Financing Receivable, before Allowance for Credit Loss	[1]	$ 32,654	$ 35,553

[1] Other consumer portfolio is inclusive of deposit account overdrafts recorded as loan balances.