Fair Value Measurements - Additional Information (Details) - USD ($)	12 Months Ended
Feb. 01, 2020	Feb. 02, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Goodwill	$ 96,774,000	$ 96,774,000
Fair value of WHBM trade name	34,000,000.0	34,000,000
Impairment charges recognized	0	0
Chico's Reporting Unit
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Goodwill	36,400,000	36,400,000
White House Black Market Reporting Unit
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Goodwill	$ 60,400,000	$ 60,400,000

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill.

+ References

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- Definition

Fair value portion of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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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.

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