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Description of Business - Additional Information (Detail) | 3 Months Ended
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Apr. 04, 2021 ft² Store Segment
Description Of Business [Line Items] |
Number of operating stores | Store | 430
Area of traditional sporting goods store | ft² | 11,000
Number of reportable segment | Segment | 1
Big 5 Corp [Member] |
Description Of Business [Line Items] |
Subsidiary interest ownership percentage | 100.00%
Big 5 Service Corp [Member] | Big 5 Corp [Member] |
Description Of Business [Line Items] |
Subsidiary interest ownership percentage | 100.00%

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- Definition Area of a real estate property. + References No definition available. + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8672-108599 + Details
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