Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 63,401	$ 52,580	$ 41,518
Adjustments to reconcile net income to net cash provided by operating activities:
Net amortization of premiums, discounts and deferred loan fees and costs	4,153	5,153	4,581
Depreciation and amortization	5,555	4,536	3,961
Amortization of intangible assets	594	654	734
Provision for loan and lease losses	4,413	6,090	4,223
Stock based compensation	2,425	2,325	1,899
Loans originated for sale	(49,748)	(60,783)	(85,365)
Proceeds from sales of loans held for sale	50,420	63,905	86,859
Gains on sales of securities	0	(2,524)	(370)
Gains on sales of loans held for sale	(1,329)	(1,836)	(2,003)
Gains on proceeds from bank owned life insurance policies	(421)	(109)	(864)
Change in market value of equity securities	583	0	0
Gains on other real estate and other repossessed assets	(338)	(646)	(248)
Loss (gain) on sale of premises and equipment	561	(838)	117
Long-term debt prepayment penalty	0	2,828	0
Deferred tax (benefit) expense	(13,571)	16,904	(987)
Excess tax benefits	318	587	0
Decrease (increase) in other assets	2,679	(25,065)	(5,600)
Increase in other liabilities	9,743	3,705	1,618
NET CASH PROVIDED BY OPERATING ACTIVITIES	79,438	67,466	50,073
CASH FLOWS FROM INVESTING ACTIVITIES:
Net cash acquired in acquisitions	0	0	68,751
Proceeds from repayments and maturities of available for sale securities	91,833	91,314	79,425
Proceeds from repayments and maturities of held to maturity securities	26,083	43,218	28,421
Proceeds from sales of equity securities	2,155	0	0
Proceeds from sales of available for sale securities	0	4,500	15,654
Purchase of available for sale securities	(110,370)	(140,258)	(244,861)
Purchase of held to maturity securities	(40,753)	(35,841)	(59,715)
Purchase of equity securities	(570)	(307)	(838)
Proceeds from redemptions of Federal Home Loan Bank stock	6,799	13,497	3,054
Purchases of Federal Home Loan Bank stock	(7,524)	(10,974)	(323)
Purchase of bank owned life insurance	0	(33,000)	0
Death benefit proceeds from bank owned life insurance policy	755	312	2,129
Net increase in loans and leases	(310,256)	(289,914)	(334,040)
Proceeds from dispositions and sales of bank premises and equipment	697	1,638	21
Purchases of premises and equipment	(5,523)	(3,972)	(3,977)
Proceeds from sales of other real estate and other repossessed assets	4,116	4,638	3,545
NET CASH USED IN INVESTING ACTIVITIES	(342,558)	(355,149)	(442,754)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net increase in deposits	252,329	276,537	515,437
Increase (decrease) in federal funds purchased and securities sold under agreements to repurchase	108,969	68,582	(94,880)
Proceeds from other borrowings	60,003	306,184	14,921
Repayments of other borrowings	(70,752)	(377,183)	(91,798)
Net proceeds from issuance of subordinated debt	0	0	73,516
Exercise of stock options	307	321	285
Net proceeds from issuance of common stock	0	0	48,678
Retirement of restricted stock	(763)	(773)	(206)
Excess tax benefits	0	0	43
Dividends paid	(21,307)	(18,853)	(16,007)
NET CASH PROVIDED BY FINANCING ACTIVITIES	328,786	254,815	449,989
Net increase (decrease) in cash and cash equivalents	65,666	(32,868)	57,308
Cash and cash equivalents, beginning of year	142,933	175,801	118,493
CASH AND CASH EQUIVALENTS, END OF YEAR	208,599	142,933	175,801
Supplemental schedule of non-cash investing and financing activities:
Cash paid during the period for income taxes	18,614	27,423	21,744
Cash paid during the period for interest	38,679	24,571	16,435
Transfer of loans and leases into other repossessed assets and other real estate owned	3,765	3,763	3,386
Pascack and Harmony
Non-cash assets acquired:
Federal Home Loan Bank stock	0	0	3,742
Investment securities held for maturity	0	0	10,810
Investment securities available for sale	0	0	7,474
Loans, including loans held for sale	0	0	579,560
Goodwill and other intangible assets, net	0	0	29,060
Other assets	0	0	32,381
Total non-cash assets acquired	0	0	663,027
Liabilities assumed:
Deposits	0	0	(582,526)
Other borrowings	0	0	(66,622)
Other liabilities	0	0	(8,755)
Total liabilities assumed	0	0	(657,903)
Common stock issued for acquisitions	$ 0	$ 0	$ 73,875