CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 30,244	$ 21,358
Adjustments to reconcile net income to net cash provided by operating activities:
Net gain on sales of securities available-for-sale and other assets	(730)	(3,142)
Net (gain) loss on equity securities	(131)	36
Net gain on sale of loans held for sale	(23,063)	(521)
Loss on termination of derivatives	16,505
Net depreciation, amortization and accretion	2,009	2,489
Stock-based compensation	2,350	1,149
Provision for credit losses	11,531	14,072
Originations of loans held for sale	(26,198)	(12,308)
Proceeds from sale of loans originated for sale	42,679	14,024
Increase in cash surrender value of BOLI	(2,932)	(1,664)
Gain from death benefits from BOLI	0	(1,134)
Deferred income tax benefit	(12,704)	(4,263)
Decrease (increase) in other assets	107,810	(12,946)
(Decrease) increase in other liabilities	(89,649)	6,431
Net cash provided by operating activities	57,721	23,581
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from sales of securities available-for-sale	138,077	62,797
Proceeds from sales of marketable equity securities	0	273
Purchases of securities available-for-sale	(508,315)	(107,342)
Acquisition of marketable equity securities	6,101	(122)
Proceeds from calls and principal repayments of securities available-for-sale	290,439	67,250
Purchase of BOLI	(40,000)	(40,000)
Proceeds received from cash surrender value of BOLI	0	1,452
Loans purchased	0	(18,892)
Proceeds from the sale of portfolio loans transferred to held for sale	667,629	7,074
Net increase in loans	(24,351)	(94,706)
Purchases of fixed assets, net	(643)	(1,297)
Redemptions of FHLBNY capital stock, net	61,620	3,714
Net cash received in business combination	715,988	0
Net cash provided by (used in) investing activities	1,306,545	(119,799)
CASH FLOWS FROM FINANCING ACTIVITIES:
Increase in deposits	1,125,900	166,952
Repayments of FHLBNY advances, long-term	(190,150)	(159,900)
Repayments of FHLBNY advances, short-term, net	(2,663,865)	(4,430,620)
Proceeds from FHLBNY advances, short-term	1,435,000	4,443,120
Proceeds from FHLBNY advances, long-term	25,000	72,450
Repayments of other short-term borrowings, net	(118,159)	(105,000)
Proceeds from preferred stock issuance, net	0	116,569
Proceeds from exercise of stock options	396	38
Release of stock for benefit plan awards	539	28
Payments related to tax withholding for equity awards	(147)	(248)
BMP ESOP shares received to satisfy distribution of retirement benefits	(993)
Treasury shares repurchased	(13,825)	(34,968)
Cash dividends paid to preferred stockholders	(3,643)	(1,140)
Cash dividends paid to common stockholders	(19,739)	(9,538)
Net cash (used in) provided by financing activities	(423,686)	57,743
Increase (decrease) in cash and cash equivalents	940,580	(38,475)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	243,603	155,488
CASH AND CASH EQUIVALENTS, END OF PERIOD	1,184,183	117,013
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid for income taxes	4,655	8,055
Cash paid for interest	17,302	36,068
Loans transferred to held for sale	674,350	9,583
Transfer of cash surrender value for BOLI to other assets	0	1,567
Premises held for investment transferred to held for sale	2,799
Premises held for sale transferred to investment	0	(514)
Operating lease assets in exchange for operating lease liabilities	4,048	$ 1,524
Cumulative change due to CECL adoption	1,686
Net non-cash liabilities assumed in Merger (See Note 2)	$ 324,479