General form of registration statement for all companies including face-amount certificate companies

Goodwill and Other Intangibles, Net - Additional Information (Detail)

v3.20.4
Goodwill and Other Intangibles, Net - Additional Information (Detail) - USD ($)
 3 Months Ended 12 Months Ended
Oct. 03, 2020
Jan. 02, 2021
Dec. 28, 2019
Oct. 03, 2020
Sep. 28, 2019
Sep. 29, 2018
Finite and Indefinite Lived Intangible Assets [Line Items]            
Amortization expense   $ 500,000 $ 600,000 $ 600,000    
Impairment of goodwill or other intangible assets $ 0 0        
Intangible assets gross amount capitalized on consolidated balance sheets 54,123,000   54,123,000 54,123,000 $ 51,623,000  
Intangible assets net carrying value 27,602,000 27,064,000 29,577,000 27,602,000 27,656,000  
Other Intangible Assets            
Finite and Indefinite Lived Intangible Assets [Line Items]            
Amortization expense       2,600,000 2,500,000 $ 3,800,000
Intangible assets gross amount capitalized on consolidated balance sheets 1,000,000     1,000,000    
Intangible assets net carrying value 42,000 33,000   42,000    
Mailing Lists            
Finite and Indefinite Lived Intangible Assets [Line Items]            
Intangible assets gross amount capitalized on consolidated balance sheets 1,600,000 1,600,000 1,600,000 1,600,000 $ 1,600,000  
Intangible assets net carrying value $ 300,000 $ 300,000 $ 300,000 $ 300,000