CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 152,556	$ 103,996	$ 42,318
Adjustments to reconcile net income to net cash provided by operating activities:
Net gain on sales of securities available-for-sale and other assets	(1,397)	(1,705)	(4,592)
Net gain on equity securities		(131)	(361)
Net gain on sale of loans held for sale	(2,245)	(24,791)	(3,002)
Loss on termination of derivatives		16,505	6,596
Net depreciation, amortization and accretion	8,314	7,805	5,069
Amortization of other intangible assets	1,878	2,622
Loss on extinguishment of debt	740	1,751	1,104
Stock-based compensation	4,278	5,407	7,223
Provision for credit losses	5,374	6,212	26,165
Originations of loans held for sale	(20,709)	(48,610)	(50,359)
Proceeds from sale of loans originated for sale	46,474	77,184	62,383
Increase in cash surrender value of BOLI	(8,190)	(6,721)	(3,725)
Gain from death benefits from BOLI	(2,156)	(350)	(1,134)
(Increase) decrease in other assets	(35,170)	125,486	(16,175)
Increase (decrease) in other liabilities	145,425	(118,333)	(11,578)
Net cash provided by operating activities	295,172	146,327	59,932
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from sales of securities available-for-sale		138,077	94,252
Proceeds from sales of marketable equity securities		6,101	546
Purchases of securities available-for-sale	(39,232)	(1,095,028)	(219,621)
Purchases of securities held-to-maturity	(63,210)	(40,249)
Acquisition of marketable equity securities			(261)
Proceeds from calls and principal repayments of securities available-for-sale	165,097	411,031	153,119
Proceeds from calls and principal repayments of securities held-to-maturity	31,736	1,360
Purchase of BOLI	(30,000)	(40,000)	(40,000)
Proceeds received from cash surrender value of BOLI	2,843	1,464	3,020
Loans purchased		(9,855)	(29,892)
Proceeds from the sale of portfolio loans transferred to held for sale	13,201	684,898	47,830
Net (increase) decrease in loans	(1,359,782)	282,683	(327,736)
Purchases fixed assets, net	(3,745)		(954)
Sales of fixed assets, net		14
Proceeds from the sale of fixed assets and premises held for sale	1,914
(Purchases) redemptions of restricted stock, net	(51,013)	46,337	(4,688)
Net cash received in business combination		715,988
Net cash (used in) provided by investing activities	(1,332,191)	1,102,821	(324,385)
CASH FLOWS FROM FINANCING ACTIVITIES:
(Decrease) increase in deposits	(204,233)	518,682	176,027
Proceeds (repayments) from FHLBNY advances, short-term, net	1,070,000	(1,228,865)	127,500
Repayments of FHLBNY advances, long-term		(190,150)	(113,190)
Proceeds from FHLBNY advances, long-term	36,000	25,000	97,450
(Repayments) proceeds of other short-term borrowings, net	(502)	(118,138)	10,000
Proceeds from subordinated debentures issuance, net	157,559
Redemption of subordinated debentures	(155,000)
Proceeds from preferred stock issuance, net			116,569
Proceeds from exercise of stock options		431	38
Release of stock for benefit plan awards	1,167	1,153	84
Payments related to tax withholding for equity awards	(1,558)	(111)	(3,060)
BMP Employee Stock Ownership Plan shares received to satisfy distribution of retirement benefits		(993)
Purchase of treasury stock	(46,762)	(59,280)	(35,356)
Redemption of REIT preferred stock		(121)
Cash dividends paid to preferred stockholders	(7,286)	(7,286)	(4,783)
Cash dividends paid to common stockholders	(36,791)	(39,351)	(18,711)
Net cash provided by (used in) financing activities	812,594	(1,099,029)	352,568
(Decrease) increase in cash and cash equivalents	(224,425)	150,119	88,115
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	393,722	243,603	155,488
CASH AND CASH EQUIVALENTS, END OF PERIOD	169,297	393,722	243,603
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid for income taxes	43,518	34,771	15,755
Cash paid for interest	54,910	28,460	59,138
Securities available-for-sale transferred to held-to-maturity	372,154	140,399
Loans transferred to held for sale	34,997	692,751	62,243
Loans transferred to held for investment	4,051
Premises transferred from held for sale			(514)
Premises transferred to held for sale		2,799
Operating lease assets in exchange for operating lease liabilities	$ 5,098	9,769	$ 1,524
Cumulative change due to Current Expected Credit Loss ("CECL") Standard adoption		1,686
Net non-cash liabilities assumed in Merger (See Note 2)		$ 324,937