Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Assets
Cash and due from banks	$ 114,686	$ 127,503
Interest-earning deposits with banks	36,288	122,952
Securities
Debt Securities, Trading, and Equity Securities, FV-NI	2,179	1,504
Equity Securities, FV-NI	21,261	19,477
Debt Securities, Available-for-sale	426,424	442,752
Held to maturity (fair value $753,263 and $603,640)	740,806	611,490
Total securities	1,190,670	1,075,223
Loans Receivable Held-for-sale, Net, Not Part of Disposal Group	33,307	6,431
Loans
Total loans	8,873,639	6,906,194
Less: allowance for loan losses	(67,740)	(64,293)
Net loans	8,805,899	6,841,901
Federal Home Loan Bank stock	14,424	15,683
Bank premises and equipment, net	123,674	97,581
Goodwill	506,206	256,105
Other intangible assets	29,286	15,250
Cash surrender value of life insurance policies	197,372	160,456
Other assets	343,353	132,507
Total assets	11,395,165	8,851,592
Deposits
Noninterest-bearing demand deposits	2,662,591	2,450,907
Savings and interest checking accounts	3,232,909	2,865,349
Money market	1,856,552	1,399,761
Time certificates of deposit of $100,000 and over	663,645	351,629
Other time certificates of deposits	731,670	359,474
Total deposits	9,147,367	7,427,120
Borrowings
Advances from Federal Home Loan Banks	115,748	147,806
Long-term Debt	74,906	0
Junior subordinated debentures (less unamortized debt issuance costs of $40 and $118)	62,848	76,173
Subordinated debentures (less unamortized debt issuance costs of $399 and $272)	49,601	34,728
Total borrowings	303,103	258,707
Other liabilities	236,552	92,275
Total liabilities	9,687,022	7,778,102
Commitments and contingencies	0	0
Stockholders' Equity
Preferred stock, $.01 par value; authorized: 1,000,000 shares, outstanding: none	0	0
Common stock, $.01 par value; authorized: 75,000,000 shares, issued and outstanding: 34,377,388 shares at December 31, 2019 and 28,080,408 shares at December 31, 2018 (includes 147,184 and 153,459 shares of unvested participating restricted stock awards, respectively)	342	279
Value of shares held in rabbi trust at cost: 143,820 shares at December 31, 2019 and 153,226 shares at December 31, 2018	(4,735)	(4,718)
Compensation and Benefits Trust	4,735	4,718
Additional paid in capital	1,035,450	527,648
Retained earnings	654,182	546,736
Accumulated other comprehensive loss, net of tax	18,169	(1,173)
Total stockholders' equity	1,708,143	1,073,490
Liabilities and Equity	11,395,165	8,851,592
Commercial And Industrial [Member]
Loans
Financing Receivable, before Allowance for Credit Loss	1,395,036	1,093,629
Total loans	1,395,036	1,093,629
Less: allowance for loan losses	(17,594)	(15,760)
Commercial Real Estate [Member]
Loans
Financing Receivable, before Allowance for Credit Loss	4,002,359	3,251,248
Total loans	4,002,359	3,251,248
Less: allowance for loan losses	(32,935)	(32,370)
Construction Loans [Member]
Loans
Financing Receivable, before Allowance for Credit Loss	547,293	365,165
Total loans	547,293	365,165
Less: allowance for loan losses	(6,053)	(5,158)
Small Business [Member]
Loans
Financing Receivable, before Allowance for Credit Loss	174,497	164,676
Total loans	174,497	164,676
Less: allowance for loan losses	(1,746)	(1,756)
Residential Real Estate [Member]
Loans
Financing Receivable, before Allowance for Credit Loss	1,590,569	923,294
Total loans	1,590,569	923,294
Less: allowance for loan losses	(3,440)	(3,219)
Home Equity 1st Position [Member]
Loans
Financing Receivable, before Allowance for Credit Loss	649,255	654,083
Home Equity Subordinate Position [Member]
Loans
Financing Receivable, before Allowance for Credit Loss	484,543	438,001
Consumer Portfolio Segment [Member]
Loans
Financing Receivable, before Allowance for Credit Loss	30,087	16,098
Total loans	30,087	16,098
Less: allowance for loan losses	$ (396)	$ (422)