CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Preferred Stock Cumulative Effect, CECL Adoption, Adjusted Balance	Preferred Stock	Common Stock Cumulative Effect, CECL Adoption, Adjusted Balance	Common Stock	Additional Paid-in Capital Cumulative Effect, CECL Adoption, Adjusted Balance	Additional Paid-in Capital	Retained Earnings Cumulative Effect, CECL Adoption, Adjustment	Retained Earnings Cumulative Effect, CECL Adoption, Adjusted Balance	Retained Earnings	Accumulated Other Comprehensive (Loss) Income Cumulative Effect, CECL Adoption, Adjusted Balance	Accumulated Other Comprehensive (Loss) Income	Unearned Equity Awards	Common Stock Held by BMP [Member] Cumulative Effect, CECL Adoption, Adjusted Balance	Common Stock Held by BMP [Member]	Treasury Stock, at Cost Cumulative Effect, CECL Adoption, Adjusted Balance	Treasury Stock, at Cost	Cumulative Effect, CECL Adoption, Adjustment	Cumulative Effect, CECL Adoption, Adjusted Balance	Total
Increase (Decrease) in Stockholders' Equity
Treasury Stock, at cost															$ (287,337)	$ (287,337)
Balance at Dec. 31, 2020	$ 116,569	$ 116,569	$ 348	$ 348	$ 278,295	$ 278,295	$ 1,686	$ 602,327	$ 600,641	$ (5,924)	$ (5,924)		$ (1,496)	$ (1,496)			$ 1,686	$ 702,782	$ 701,096
Balance (in shares) at Dec. 31, 2020			21,232,984	21,232,984
Increase (Decrease) in Stockholders' Equity
Net income									(21,034)										(21,034)
Other comprehensive income (loss), net of tax											6,455								6,455
Reverse merger with Bridge Bancorp, Inc.				$ 65		206,641						$ (2,603)				287,107			491,210
Reverse merger with Bridge Bancorp, Inc. (in shares)				19,992,284
Exercise of stock options						292										80			372
Exercise of stock options (in shares)				15,928
Release of shares, net of forfeitures				$ 3		8,562						(8,340)				(33)			192
Release of shares, net of forfeitures (in shares)				335,959
Stock-based compensation												836							836
Shares received to satisfy distribution of retirement benefits						(1,359)								1,496		(1,130)			(993)
Shares received to satisfy distribution of retirement benefits (in shares)				(41,101)
Cash dividends declared to preferred stockholders									(1,821)										(1,821)
Cash dividends declared to common stockholders, net									(5,175)										(5,175)
Balance at Mar. 31, 2021		116,569		$ 416		492,431			574,297		531	(10,107)							1,172,824
Balance (in shares) at Mar. 31, 2021				41,536,054
Balance at Dec. 31, 2020	$ 116,569	116,569	$ 348	$ 348	$ 278,295	278,295	$ 1,686	$ 602,327	600,641	$ (5,924)	(5,924)		$ (1,496)	$ (1,496)			$ 1,686	$ 702,782	701,096
Balance (in shares) at Dec. 31, 2020			21,232,984	21,232,984
Increase (Decrease) in Stockholders' Equity
Net income																			68,639
Other comprehensive income (loss), net of tax											4,882								4,882
Balance at Sep. 30, 2021		116,569		$ 416		493,775			630,744		(1,042)	(9,417)							1,201,117
Balance (in shares) at Sep. 30, 2021				40,714,828
Increase (Decrease) in Stockholders' Equity
Treasury Stock, at cost																(1,313)
Balance at Mar. 31, 2021		116,569		$ 416		492,431			574,297		531	(10,107)							1,172,824
Balance (in shares) at Mar. 31, 2021				41,536,054
Increase (Decrease) in Stockholders' Equity
Net income									51,278										51,278
Other comprehensive income (loss), net of tax											4,045								4,045
Exercise of stock options						(7)										31			24
Exercise of stock options (in shares)				1,174
Release of shares, net of forfeitures						424						64				(141)			347
Release of shares, net of forfeitures (in shares)				3,098
Stock-based compensation												1,514							1,514
Shares received related to tax withholding																(147)			(147)
Shares received related to tax withholding (in shares)				(3,342)
Cash dividends declared to preferred stockholders									(1,822)										(1,822)
Cash dividends declared to common stockholders, net									(9,962)										(9,962)
Purchase of treasury stock																(13,825)			(13,825)
Purchase of treasury stock (in shares)				(424,121)
Balance at Jun. 30, 2021		116,569		$ 416		492,848			613,791		4,576	(8,529)							1,204,276
Balance (in shares) at Jun. 30, 2021				41,112,863
Increase (Decrease) in Stockholders' Equity
Treasury Stock, at cost																(15,395)
Net income									38,395										38,395
Other comprehensive income (loss), net of tax											(5,618)								(5,618)
Release of shares, net of forfeitures						1,048						(2,423)				1,615			240
Release of shares, net of forfeitures (in shares)				82,004
Stock-based compensation												1,535							1,535
Cash dividends declared to preferred stockholders									(1,822)										(1,822)
Cash dividends declared to common stockholders, net									(19,620)										(19,620)
Redemption of real estate investment trust ("REIT") preferred stock						(121)													(121)
Purchase of treasury stock																(16,148)			(16,148)
Purchase of treasury stock (in shares)				(480,039)
Balance at Sep. 30, 2021		116,569		$ 416		493,775			630,744		(1,042)	(9,417)							1,201,117
Balance (in shares) at Sep. 30, 2021				40,714,828
Increase (Decrease) in Stockholders' Equity
Treasury Stock, at cost																(29,928)
Treasury Stock, at cost																(59,193)			(59,193)
Balance at Dec. 31, 2021		116,569		$ 416		494,125			654,726		(6,181)	(7,842)							$ 1,192,620
Balance (in shares) at Dec. 31, 2021				39,877,833															39,877,833
Increase (Decrease) in Stockholders' Equity
Net income									34,531										$ 34,531
Other comprehensive income (loss), net of tax											(43,199)								(43,199)
Release of shares, net of forfeitures						844						(3,939)				3,284			189
Release of shares, net of forfeitures (in shares)				127,812
Stock-based compensation												1,219							1,219
Shares received related to tax withholding																(1,414)			(1,414)
Shares received related to tax withholding (in shares)				(40,731)
Cash dividends declared to preferred stockholders									(1,821)										(1,821)
Cash dividends declared to common stockholders, net									(9,446)										(9,446)
Purchase of treasury stock																(17,392)			(17,392)
Purchase of treasury stock (in shares)				(505,005)
Balance at Mar. 31, 2022		116,569		$ 416		494,969			677,990		(49,380)	(10,562)							1,155,287
Balance (in shares) at Mar. 31, 2022				39,459,909
Balance at Dec. 31, 2021		116,569		$ 416		494,125			654,726		(6,181)	(7,842)							$ 1,192,620
Balance (in shares) at Dec. 31, 2021				39,877,833															39,877,833
Increase (Decrease) in Stockholders' Equity
Net income																			$ 112,497
Other comprehensive income (loss), net of tax											(86,855)								(86,855)
Balance at Sep. 30, 2022		116,569		$ 416		495,232			733,783		(93,036)	(9,177)							$ 1,140,791
Balance (in shares) at Sep. 30, 2022				38,571,572															38,571,572
Increase (Decrease) in Stockholders' Equity
Treasury Stock, at cost																(74,715)
Balance at Mar. 31, 2022		116,569		$ 416		494,969			677,990		(49,380)	(10,562)							$ 1,155,287
Balance (in shares) at Mar. 31, 2022				39,459,909
Increase (Decrease) in Stockholders' Equity
Net income									38,485										38,485
Other comprehensive income (loss), net of tax											(20,570)								(20,570)
Release of shares, net of forfeitures						297						(644)				726			379
Release of shares, net of forfeitures (in shares)				27,125
Stock-based compensation												946							946
Shares received related to tax withholding																(1)			(1)
Shares received related to tax withholding (in shares)				(37)
Cash dividends declared to preferred stockholders									(1,822)										(1,822)
Cash dividends declared to common stockholders, net									(9,282)										(9,282)
Purchase of treasury stock																(22,900)			(22,900)
Purchase of treasury stock (in shares)				(717,644)
Balance at Jun. 30, 2022		116,569		$ 416		495,266			705,371		(69,950)	(10,260)							1,140,522
Balance (in shares) at Jun. 30, 2022				38,769,353
Increase (Decrease) in Stockholders' Equity
Treasury Stock, at cost																(96,890)
Net income									39,481										39,481
Other comprehensive income (loss), net of tax											(23,086)								(23,086)
Release of shares, net of forfeitures						(33)						20				241			228
Release of shares, net of forfeitures (in shares)				7,227
Stock-based compensation												1,063							1,063
Shares received related to tax withholding						(1)										(141)			(142)
Shares received related to tax withholding (in shares)				(4,662)
Cash dividends declared to preferred stockholders									(1,822)										(1,822)
Cash dividends declared to common stockholders, net									(9,247)										(9,247)
Purchase of treasury stock																(6,206)			(6,206)
Purchase of treasury stock (in shares)				(200,346)
Balance at Sep. 30, 2022		$ 116,569		$ 416		$ 495,232			$ 733,783		$ (93,036)	$ (9,177)							$ 1,140,791
Balance (in shares) at Sep. 30, 2022				38,571,572															38,571,572
Increase (Decrease) in Stockholders' Equity
Treasury Stock, at cost																$ (102,996)			$ (102,996)