XML 64 R54.htm IDEA: XBRL DOCUMENT v3.25.2

LOANS HELD FOR INVESTMENT, NET - Past Due Status (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Past Due, Financial Instrument [Abstract]
Total	$ 10,870,030	$ 10,869,328
Total Past Due
Past Due, Financial Instrument [Abstract]
Total	114,714	91,122
30 to 59 Days Past Due
Past Due, Financial Instrument [Abstract]
Total	28,148	10,330
60 to 89 Days Past Due
Past Due, Financial Instrument [Abstract]
Total	33,352	31,313
90 days or more past due
Past Due, Financial Instrument [Abstract]
Total	0	0
Non-Accrual
Past Due, Financial Instrument [Abstract]
Total	53,214	49,479
Current
Past Due, Financial Instrument [Abstract]
Total	10,755,316	10,778,206
Business Loans
Past Due, Financial Instrument [Abstract]
Total	2,901,948	2,725,726
Business Loans | Total Past Due
Past Due, Financial Instrument [Abstract]
Total	29,300	28,450
Business Loans | 30 to 59 Days Past Due
Past Due, Financial Instrument [Abstract]
Total	5,547	3,385
Business Loans | 60 to 89 Days Past Due
Past Due, Financial Instrument [Abstract]
Total	5,746	2,441
Business Loans | Non-Accrual
Past Due, Financial Instrument [Abstract]
Total	18,007	22,624
Business Loans | Current
Past Due, Financial Instrument [Abstract]
Total	2,872,648	2,697,276
One-to-Four Family Residential and Cooperative/Condominium Apartment
Past Due, Financial Instrument [Abstract]
Total	998,446	951,528
One-to-Four Family Residential and Cooperative/Condominium Apartment | Total Past Due
Past Due, Financial Instrument [Abstract]
Total	2,751	6,403
One-to-Four Family Residential and Cooperative/Condominium Apartment | 30 to 59 Days Past Due
Past Due, Financial Instrument [Abstract]
Total	1,109	1,919
One-to-Four Family Residential and Cooperative/Condominium Apartment | 60 to 89 Days Past Due
Past Due, Financial Instrument [Abstract]
Total		1,271
One-to-Four Family Residential and Cooperative/Condominium Apartment | Non-Accrual
Past Due, Financial Instrument [Abstract]
Total	1,642	3,213
One-to-Four Family Residential and Cooperative/Condominium Apartment | Current
Past Due, Financial Instrument [Abstract]
Total	995,695	945,125
Multifamily Residential and Residential Mixed-Use
Past Due, Financial Instrument [Abstract]
Total	3,693,425	3,820,283
Multifamily Residential and Residential Mixed-Use | Total Past Due
Past Due, Financial Instrument [Abstract]
Total	48,919	31,360
Multifamily Residential and Residential Mixed-Use | 30 to 59 Days Past Due
Past Due, Financial Instrument [Abstract]
Total	21,314	3,759
Multifamily Residential and Residential Mixed-Use | 60 to 89 Days Past Due
Past Due, Financial Instrument [Abstract]
Total	27,605	27,601
Multifamily Residential and Residential Mixed-Use | 90 days or more past due
Past Due, Financial Instrument [Abstract]
Loans 90 Days or More Past Due and Still Accruing Interest	0
Multifamily Residential and Residential Mixed-Use | Non-Accrual
Past Due, Financial Instrument [Abstract]
Total	0
Multifamily Residential and Residential Mixed-Use | Current
Past Due, Financial Instrument [Abstract]
Total	3,644,506	3,788,923
Non-Owner-Occupied Commercial Real Estate
Past Due, Financial Instrument [Abstract]
Total	3,128,120	3,230,535
Non-Owner-Occupied Commercial Real Estate | Real Estate Loan [Member]
Past Due, Financial Instrument [Abstract]
Total	3,128,120	3,230,535
Non-Owner-Occupied Commercial Real Estate | Real Estate Loan [Member] | Total Past Due
Past Due, Financial Instrument [Abstract]
Total	33,085	24,225
Non-Owner-Occupied Commercial Real Estate | Real Estate Loan [Member] | 30 to 59 Days Past Due
Past Due, Financial Instrument [Abstract]
Total	177	1,265
Non-Owner-Occupied Commercial Real Estate | Real Estate Loan [Member] | Non-Accrual
Past Due, Financial Instrument [Abstract]
Total	32,908	22,960
Non-Owner-Occupied Commercial Real Estate | Real Estate Loan [Member] | Current
Past Due, Financial Instrument [Abstract]
Total	3,095,035	3,206,310
Acquisition, development, and construction ("ADC")
Past Due, Financial Instrument [Abstract]
Total	141,755	136,172
Acquisition, development, and construction ("ADC") | Total Past Due
Past Due, Financial Instrument [Abstract]
Total	657	657
Acquisition, development, and construction ("ADC") | Non-Accrual
Past Due, Financial Instrument [Abstract]
Total	657	657
Acquisition, development, and construction ("ADC") | Current
Past Due, Financial Instrument [Abstract]
Total	141,098	135,515
Other Loans
Past Due, Financial Instrument [Abstract]
Total	6,336	5,084
Other Loans | Total Past Due
Past Due, Financial Instrument [Abstract]
Total	2	27
Other Loans | 30 to 59 Days Past Due
Past Due, Financial Instrument [Abstract]
Total	1	2
Other Loans | 60 to 89 Days Past Due
Past Due, Financial Instrument [Abstract]
Total	1
Other Loans | Non-Accrual
Past Due, Financial Instrument [Abstract]
Total		25
Other Loans | Current
Past Due, Financial Instrument [Abstract]
Total	$ 6,334	$ 5,057

X

- Definition

Amortized cost excluding accrued interest, of financing receivable 90 days or more past due and still accruing. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-16

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterest90DaysOrMorePastDueStillAccruing
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amortized cost excluding accrued interest, before allowance for credit loss, fee, and loan in process, of financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(7))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_PastDueFinancialInstrumentAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancialAssetPastDueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables30To59DaysPastDueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables60To89DaysPastDueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=dcom_NonAccrualMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancialAssetNotPastDueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=dcom_BusinessLoanPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=dcom_OneToFourFamilyResidentialAndCooperativeUnitAllowanceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=dcom_MultifamilyResidentialAndResidentialMixedUseAllowanceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=dcom_NonOwnerOccupiedCommercialRealEstatePortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_RealEstateLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=dcom_AcquisitionDevelopmentAndConstructionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: