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MERGER - Hypothetical Legacy Dime Ownership (Details) - Merger Agreement shares in Thousands | 1 Months Ended
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Jan. 31, 2021 shares
MERGER |
Number of Legacy Dime Outstanding Shares | 63,620
Percentage Ownership | 100.00%
Bridge shareholders |
MERGER |
Number of Legacy Dime Outstanding Shares | 30,853
Percentage Ownership | 48.50%
Legacy Dime shareholders |
MERGER |
Number of Legacy Dime Outstanding Shares | 32,767
Percentage Ownership | 51.50%

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- Definition Number of shares of hypothetical equity interests issued or issuable to acquire entity. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Definition Percentage of hypothetical voting equity interests acquired at the acquisition date in the business combination. + References No definition available. + Details
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Namespace Prefix: | dcom_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 805 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479907/805-20-50-5 + Details
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- Details
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
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