Consolidated Statements of Cash Flows - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating Activities
Net income	$ 81,793	$ 34,674	$ 41,279
Adjustments to reconcile net income to net cash provided by operating activities:
(Benefit) provision for credit losses	(4,944)	23,129	2,811
Depreciation and amortization of premises and equipment	6,425	6,212	5,930
Net gain on sales of loans	(335)	(48)	(870)
Net (gain) loss on sales of securities	(113)	701	15
Net loss on sales of OREO	0	36	0
Net gain on sale and disposition of assets	(621)	0	(770)
Amortization of premium, net of accretion of discount	(987)	6,446	7,110
Fair value adjustments for financial assets and financial liabilities	12,995	2,142	5,353
Net (gain) loss from fair value adjustments of qualifying hedges	(2,079)	1,185	1,677
Income from bank owned life insurance	(4,044)	(3,814)	(3,534)
Life insurance proceeds	0	(659)	(462)
Stock-based compensation expense	6,829	6,450	7,763
Deferred compensation	(4,002)	(4,403)	(3,078)
Amortization of core deposit intangibles	610	108	0
Deferred income tax	(1,725)	(4,637)	(3,895)
Decrease (increase) in other assets	563	2,605	706
(Decrease) increase in other liabilities	(1,767)	1,151	3,735
Net cash provided by operating activities	88,598	71,278	63,770
Investing Activities
Purchases of premises and equipment	(3,680)	(2,512)	(4,213)
Net redemptions of Federal Home Loan Bank-NY shares	7,502	14,617	361
Purchases of securities held-to-maturity	0	0	(30,030)
Proceeds from calls of securities held-to-maturity	0	180	2,568
Proceeds from prepayments of securities held-to-maturity	0	603	583
Purchases of securities available for sale	(538,350)	(217,405)	(146,183)
Proceeds from sales and calls of securities available for sale	64,613	232,970	65,493
Proceeds from maturities and prepayments of securities available for sale	330,701	271,533	144,673
Proceeds from sale of assets	0	0	813
Purchase of bank owned life insurance	(25,000)	0	(25,000)
Proceeds from life insurance	0	2,477	3,071
Net repayments (originations) of loans	290,890	(55,276)	(800)
Purchases of loans	(262,091)	(193,289)	(221,222)
Proceeds from sale of loans	28,632	7,493	15,117
Proceeds from sale of OREO, net	0	203	0
Cash used in acquisition of Empire Bancorp, Inc.	0	(54,836)	0
Cash provided by acquisition of Empire Bancorp, Inc.	0	86,340	0
Net cash (used in) provided by investing activities	(106,783)	93,098	(194,769)
Financing Activities
Net increase in non interest-bearing deposits	188,949	174,104	21,325
Net increase in interest-bearing deposits	3,974	39,591	84,540
Net increase (decrease) in mortgagors' escrow deposits	6,291	(5,159)	(486)
Net proceeds from short-term borrowed funds			15,750
Proceeds from long-term borrowings	122,843	215,378	225,000
Repayment of long-term borrowings	(341,643)	(451,999)	(257,102)
Purchases of treasury stock	(11,370)	(3,877)	(2,656)
Proceeds from issuance of common stock upon exercise of stock options			3
Cash dividends paid	(26,524)	(24,813)	(24,149)
Net cash (used in) provided by financing activities	(57,480)	(56,775)	62,225
Net (decrease) increase in cash and cash equivalents	(75,665)	107,601	(68,774)
Cash and cash equivalents, beginning of year	157,388	49,787	118,561
Cash and cash equivalents, end of year	81,723	157,388	49,787
Supplemental Cash Flow Disclosure
Interest paid	40,564	71,380	115,616
Income taxes paid	28,225	17,919	15,369
Taxes paid if excess tax benefits on stock-based compensation were not tax deductible	$ 27,889	17,764	15,403
Non-cash activities:
Loans transferred to other real estate owned			239
Right-of-use assets			42,869
Operating lease liabilities			$ 51,780
Assets acquired:
Securities available for sale		159,369
Net loans		669,682
Interest and dividends receivable		5,394
Bank premises and equipment, net		3,203
Federal Home Loan Bank of New York stock, at cost		1,135
Bank owned life insurance		21,992
Core deposit Intangibles		3,280
Right of Use Asset		9,993
Other assets		22,300
Total		896,348
Liabilities assumed:
Non-interest bearing		169,496
Interest-bearing		685,393
Mortgagors' escrow deposits		6,406
Borrowed funds		21,215
Operating lease liability		11,039
Other liabilities		3,108
Total		896,657
Goodwill recorded		$ 1,509
Common stock issued		32,705