Description of Business - Additional Information (Detail)	12 Months Ended
	Jan. 01, 2023 ft² Store Segment
Description Of Business [Line Items]
Number of operating stores | Store	432
Area of traditional sporting goods store | ft²	12,000
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%