XML 36 R26.htm IDEA: XBRL DOCUMENT
v3.21.1

BASIS OF PRESENTATION (Policies) | 3 Months Ended
--- | ---
Mar. 31, 2021
BASIS OF PRESENTATION |
Risks and Uncertainties | Risks and Uncertainties In March 2020, the World Health Organization declared the outbreak of COVID-19 as a global pandemic, which has spread to most countries, including the United States. The pandemic has adversely affected economic activity globally, nationally and locally. In March 2020, the United States declared a National Public Health Emergency in response to the COVID-19 pandemic. In an effort to mitigate the spread of COVID-19, local state governments, including New York (in which the Bank has retail banking offices), have taken preventative or protective actions such as travel restrictions, advising or requiring individuals to limit or forego their time outside of their homes, and other forced closures for certain types of non-essential businesses. The impact of these actions is expected to continue to have an adverse impact on the economies and financial markets in the United States. The Coronavirus Aid, Relief and Economic Security (“CARES”) Act was signed into law at the end of March 2020. The CARES Act is intended to provide relief and lessen a severe economic downturn. The stimulus package includes direct financial aid to American families and economic stimulus to significantly impacted industry sectors. The package also includes extensive emergency funding for hospitals and healthcare providers. It is possible that there will be material, adverse impacts to significant estimates, asset valuations, and business operations, including intangible assets, investments, loans, deferred tax assets, and derivative counter party risk.

X
- Definition Disclosure of accounting policy pertaining to risks and uncertainties. + References No definition available. + Details
Name: | dcom_RisksAndUncertaintiesPolicyTextBlock
Namespace Prefix: | dcom_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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