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Fair Value Measurements - Additional Information (Details) - USD ($)		3 Months Ended		9 Months Ended
	Feb. 03, 2019	Nov. 02, 2019	Nov. 03, 2018	Nov. 02, 2019	Nov. 03, 2018	Feb. 02, 2019
Fair Value Disclosures [Abstract]
Securities with maturity dates within one year or less		$ 31,300,000		$ 31,300,000
Securities with maturity dates over one year and less than two years		26,000,000.0		26,000,000.0
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Goodwill		96,774,000	$ 96,774,000	96,774,000	$ 96,774,000	$ 96,774,000
Fair value of WHBM trade name		34,000,000.0	34,000,000	34,000,000.0	34,000,000
Impairment charges recognized		0	0	0	0
Cumulative effect of adoption of ASU 2016-02 (see Note 1)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect adjustment on retained earnings	$ 1,300,000
Chico's Reporting Unit
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Goodwill		36,400,000	36,400,000	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	$ 60,400,000	$ 60,400,000