Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies and Nature of Operations - Additional Information (Details)

v3.22.0.1
Summary of Significant Accounting Policies and Nature of Operations - Additional Information (Details)
$ in Thousands
 12 Months Ended
Jan. 01, 2022
USD ($)
item
Jan. 02, 2021
USD ($)
Dec. 28, 2019
USD ($)
Jan. 01, 2019
USD ($)
Dec. 29, 2018
USD ($)
Property, Plant and Equipment [Line Items]          
Net loss $ 10,339 $ 1,513 $ 31,548    
Trade receivable as percent of total accounts receivable, net 18.00% 28.00%      
Number of suppliers | item 1        
Inventory in-transit $ 3,011 $ 26,542      
Capitalized website and software development costs 6,334 4,769 4,907    
Impairment loss on intangible assets 0        
Impairment loss on property and equipment $ 0 0      
Number of customer accounted for 10 % 0.00%        
Warranty, coverage period 30 days        
Warranty, unlimited product replacement, coverage period 5 years        
Warranty, one-time product replacement, coverage period, option one 5 years        
Warranty, one-time product replacement, coverage period, option two 3 years        
Advertising costs $ 69,102 54,588 25,691    
Unrecognized tax benefits, interest or penalties 0        
Effect of new accounting adoption $ 95,568 83,489 12,380   $ 38,822
Minimum          
Property, Plant and Equipment [Line Items]          
Length Of Fiscal Year 364 days        
Standard product warranty, recognition period 1 year        
Maximum          
Property, Plant and Equipment [Line Items]          
Length Of Fiscal Year 371 days        
Standard product warranty, recognition period 5 years        
Website and Software Development          
Property, Plant and Equipment [Line Items]          
Capitalized website and software development costs $ 2,159 659 55    
Capitalized website and software development cost amount 14,153 22,099      
Capitalized website and software development costs accumulated amortization and impairment amount $ 8,929 18,779      
Website and Software Development | Minimum          
Property, Plant and Equipment [Line Items]          
Amortization on a straight-line basis, period 2 years        
Website and Software Development | Maximum          
Property, Plant and Equipment [Line Items]          
Amortization on a straight-line basis, period 3 years        
Cost of Sales          
Property, Plant and Equipment [Line Items]          
Freight and shipping expenses $ 89,785 69,925 47,140    
Employee Stock Option | Minimum          
Property, Plant and Equipment [Line Items]          
Stock options vesting period 3 years        
Employee Stock Option | Maximum          
Property, Plant and Equipment [Line Items]          
Stock options vesting period 4 years        
Accumulated Deficit          
Property, Plant and Equipment [Line Items]          
Net loss $ 10,339 1,513 31,548    
Effect of new accounting adoption $ (179,800) $ (169,461) $ (167,876)   (137,791)
Cumulative Effect Period of Adoption Adjustment          
Property, Plant and Equipment [Line Items]          
Effect of new accounting adoption         1,623
Cumulative Effect Period of Adoption Adjustment | Accumulated Deficit          
Property, Plant and Equipment [Line Items]          
Effect of new accounting adoption         $ 1,623
ASU 2016-02 | Cumulative Effect Period of Adoption Adjustment | Accumulated Deficit          
Property, Plant and Equipment [Line Items]          
Effect of new accounting adoption       $ 1,623