MERGER - Dime Community Bancshares, Inc. Ownership and Market Value (Details) - Merger Agreement - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		1 Months Ended
Feb. 01, 2021	Jan. 31, 2021	Jan. 31, 2022
MERGER
Number of Bridge Outstanding Shares		41,226
Percentage Ownership		100.00%
Securities available-for-sale acquired on the Merger Date		$ 1,007,140
Bridge shareholders
MERGER
Number of Bridge Outstanding Shares	21,200	19,993
Percentage Ownership	51.50%	48.50%
Securities available-for-sale acquired on the Merger Date		$ 488,420
Bridge Share Price			$ 24.43
Legacy Dime shareholders
MERGER
Number of Bridge Outstanding Shares	30,853	21,233
Percentage Ownership		51.50%
Securities available-for-sale acquired on the Merger Date	$ 7	$ 518,720

Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
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Number of shares of equity interests issued or issuable to acquire entity.

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

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