Business Organization and Summary of Significant Accounting Policies - Description of Business, Fiscal Year, Segment Information (Details)	12 Months Ended
Feb. 02, 2019 store segment
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of stores throughout the U.S., U.S. Virgin Islands, Puerto Rico, and Canada	1,418
Number of franchise locations in and around Mexico	83
Number of reportable segments \| segment	1

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

No definition available.

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration