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Accounting Standards (Details) - USD ($) $ in Millions	9 Months Ended
	Oct. 28, 2023	Jan. 28, 2023	Oct. 29, 2022
Minimum notice required from the Company or the administering bank to terminate the supplier finance program agreement	30 days
Trade accounts payable and accrued expenses
Confirmed obligations under the supplier finance program that remain unpaid	$ 1.5	$ 1.8	$ 2.1

X

- Definition

The minimum notice required from the Company or the administering bank, to terminate the supplier finance program agreement.

+ References

No definition available.

+ Details

Name:	dds_SupplierFinanceProgramMinimumNoticeToTerminate
Namespace Prefix:	dds_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the amount of confirmed obligations under the supplier finance program that remain unpaid.

+ References

No definition available.

+ Details

Name:	dds_SupplierFinanceProgramObligationsConfirmedButUnpaid
Namespace Prefix:	dds_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_BalanceSheetLocationAxis=us-gaap_AccountsPayableAndAccruedLiabilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: