XML 57 R41.htm IDEA: XBRL DOCUMENT
v3.24.0.1

LEASES (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2023
LEASES |
Summary of maturities of operating lease liabilities | The following table presents the Company’s remaining maturities of undiscounted lease payments, as well as a reconciliation to the discounted operating lease liabilities in the Consolidated Statements of Financial Condition at December 31, 2023: ​
​ | ​ | ​ | ​
​ | ​ | ​
(In thousands) |  | ​
2024 |  | $ | 13,009
2025 |  | ​ | 12,833
2026 |  | ​ | 12,173
2027 |  | ​ | 10,322
2028 |  | ​ | 4,297
Thereafter |  | ​ | 6,260
Total undiscounted lease payments |  | ​ | 58,894
Less amounts representing interest |  | ​ | (3,440)
Operating lease liabilities | ​ | $ | 55,454
Summary of other information related to operating leases | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Year Ended December 31,
(In thousands) |  | 2023 |  | 2022 | ​ | 2021
Operating lease cost | ​ | $ | 12,801 | ​ | $ | 11,428 | ​ | $ | 14,341
Cash paid for amounts included in the measurement of operating lease liabilities | ​ | ​ | 12,560 | ​ | ​ | 10,574 | ​ |  | 13,975
​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31, | ​
​ | ​ | 2023 |  | ​ | 2022 | ​
Weighted average remaining lease term |  | 5.0 | years | ​ | 5.9 | years
Weighted average discount rate |  | 2.34 | % | ​ | 2.03 | %
​

X
- Definition Tabular disclosure of other information related to operating leases. + References No definition available. + Details
Name: | dcom_OtherInformationRelatedToOperatingLeasesTableTextBlock
Namespace Prefix: | dcom_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-6 + Details
Name: | us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration