Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Millions	Jan. 29, 2022	Jan. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Open cancellable purchase orders for inventory	$ 517.3	$ 256.1

Significant purchase commitment subject to cancellation amount committed

No definition available.

Name:	chs_SignificantPurchaseCommitmentSubjectToCancellationAmountCommitted
Namespace Prefix:	chs_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant