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DEPOSITS (Tables) | 9 Months Ended
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Sep. 30, 2024
Deposits [Abstract] |
Schedule of Time Deposits | A summary of time deposits is as follows:
(In thousands) |  | September 30, 2024 |  | December 31, 2023
Time less than $100,000 |  | $ | 698,611 |  |  | $ | 724,911 |
Time $100,000 through $250,000 |  | 1,169,563 |  |  | 1,276,175 |
Time more than $250,000 |  | 651,722 |  |  | 685,164 |
Total time deposits |  | $ | 2,519,896 |  |  | $ | 2,686,250 |

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- Definition Tabular disclosure of deposits that cannot be withdrawn before a set date without penalty or for which notice of withdrawal is required. Time deposits include, but are not limited to, certificates of deposits, individual retirement accounts and open accounts. + References No definition available. + Details
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Namespace Prefix: | bhlb_
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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration