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Concentration of Credit Risk - Additional Information (Detail)
$ in Millions
 12 Months Ended
Dec. 29, 2018
USD ($)
Retailer
Concentration Of Credit Risk [Line Items]  
Number of independent retailer for unearned advanced amount | Retailer 1
Percent of unearned advanced amount to total assets 2.00%
Amount of charge resulted in analysis of net realizability of the underlying collateral $ 32.0
Present value of potential obligation for sub-lease 5.9
Assigned sublease obligation $ 14.1
Minimum [Member]  
Concentration Of Credit Risk [Line Items]  
Loan repayable period 5 years
Maximum [Member]  
Concentration Of Credit Risk [Line Items]  
Loan repayable period 10 years