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Leases - Additional Information (Details) $ in Millions	12 Months Ended
	Feb. 01, 2025 USD ($) RenewalOption Lease
Lessee Lease Description [Line Items]
Operating lease renewal option beginning year	2026
Leases, expected to commence period	2025
Store
Lessee Lease Description [Line Items]
Operating lease initial term	10 years
Operating lease option to extend	5 years
Operating lease team, not yet commenced	10 years
Aggregated estimated future lease payments | $	$ 10.2
Number of leases not yet commenced | Lease	8
Store | Minimum
Lessee Lease Description [Line Items]
Operating lease option to extend	5 years
Store | Maximum
Lessee Lease Description [Line Items]
Operating lease initial term	10 years
Operating lease option to extend	5 years
Corporate Headquarter
Lessee Lease Description [Line Items]
Operating lease initial term	20 years
Operating lease option to extend	5 years
Number of renewal options | RenewalOption	6
Equipment and Other Assets | Minimum
Lessee Lease Description [Line Items]
Operating lease initial term	3 years
Equipment and Other Assets | Maximum
Lessee Lease Description [Line Items]
Operating lease initial term	5 years

X

- Definition

Lessee operating lease expected to commence period.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

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- Definition

Lessee operating lease renewal option beginning year.

+ References

No definition available.

+ Details

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X

- Definition

Number of leases not yet commenced.

+ References

No definition available.

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X

- Definition

Number of renewal option.

+ References

No definition available.

+ Details

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X

- Definition

Operating lease not yet commenced aggregate estimated future lease payments.

+ References

No definition available.

+ Details

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Namespace Prefix:	dxlg_
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Balance Type:	credit
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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 7A
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-7A

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-3

+ Details

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Namespace Prefix:	us-gaap_
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X

- Definition

Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-3

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	instant

X

- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-3

+ Details

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Namespace Prefix:	us-gaap_
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X

- Definition

Term of lessor's operating lease not yet commenced, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479773/842-30-50-3

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- Details

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- Details

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X

- Details

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