XML 45 R35.htm IDEA: XBRL DOCUMENT
v3.24.3

FHLBNY ADVANCES (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2024
FHLBNY ADVANCES |
Summary of FHLBNY extinguishments | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended September 30, | ​ | Nine Months Ended September 30,
(Dollars in thousands) | ​ | ​ | 2024 | ​ | ​ | ​ | 2023 | ​ | ​ | ​ | 2024 | ​ | ​ | ​ | 2023 | ​
FHLBNY advances extinguished | ​ | $ | 25,000 | ​ | ​ | $ | - | ​ | ​ | $ | 1,805,000 | ​ | ​ | $ | - | ​
Weighted average rate | ​ | ​ | 5.25 | % | ​ | ​ | - | % | ​ | ​ | 5.28 | % | ​ | ​ | - | %
Loss on extinguishment of debt | ​ | $ | 1 | ​ | ​ | $ | - | ​ | ​ | $ | 454 | ​ | ​ | $ | - | ​
Schedule of contractual maturities and weighted average interest rates of FHLBNY advances | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
(Dollars in thousands) | ​ | September 30, 2024 | ​ | December 31, 2023
2024, fixed rate at rates from 5.25% to 5.55% | ​ | ​ | 400,000 | ​ | ​ | 1,265,000
2027, fixed rate at 4.25% | ​ | ​ | 36,000 | ​ | ​ | 36,000
2028, fixed rate at 4.04% | ​ | ​ | 12,000 | ​ | ​ | 12,000
2029, fixed rate at rates from 3.98% to 4.03% | ​ | ​ | 60,000 | ​ | ​ | —
Total FHLBNY advances | ​ | $ | 508,000 | ​ | $ | 1,313,000

X
- Definition Tabular disclosure of contractual maturities and weighted average interest rates of FHLB advances. + References No definition available. + Details
Name: | dcom_FederalHomeLoanBankAdvancesMaturitiesSummaryTableTextBlock
Namespace Prefix: | dcom_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure for extinguishments for Federal Home Loan Advances. + References No definition available. + Details
Name: | dcom_ScheduleOfFederalHomeLoanBankAdvanceExtinguishmentTableTextBlock
Namespace Prefix: | dcom_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DebtDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration