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

Summary of Significant Accounting Policies - Additional Information (Details)

v3.20.4
Summary of Significant Accounting Policies - Additional Information (Details) - USD ($)
 3 Months Ended 12 Months Ended
Nov. 30, 2020
Jan. 02, 2021
Oct. 03, 2020
Sep. 28, 2019
Sep. 29, 2018
Nov. 03, 2020
Dec. 28, 2019
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]              
Operating Lease, Right-of-Use Asset   $ 191,125,000 $ 177,655,000 $ 177,700,000     $ 212,492,000
Operating Lease, Liability   196,194,000   184,700,000   $ 184,693,000  
Advertising costs     19,400,000 18,000,000.0 $ 21,900,000    
Cooperative Advertising Expense     1,600,000 1,600,000 1,400,000    
uncertain tax positions     0 0      
Impairment charges     0 0      
Capitalized Software, Accumulated Amortization     11,100,000 8,700,000      
Capitalized Computer Software, Net     7,000,000.0 6,400,000      
Vendor Rebate Receivables     15,900,000 16,700,000      
CashAndCashEquivalentsAtCarryingValue   104,077,000 157,072,000 90,899,000     1,938,000
Capitalized Software, Additions     3,000,000.0 4,000,000.0      
Long-term Debt   809,093,000 1,201,178,000 1,211,605,000     1,215,820,000
Number of new stock issued 30,000,000            
Shares Issued, Price Per Share $ 17.00            
Proceeds from Issuance Initial Public Offering   458,686,000          
Fair value of term loan     796,500,000 783,600,000      
Level 2 | Term Loan due in 2023              
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]              
Fair value of term loan   $ 806,600,000          
IPO [Member]              
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]              
Proceeds from Issuance Initial Public Offering $ 458,700,000            
Payments for Underwriting Expense 45.0            
Payments For Offering Cost 6,300,000            
Money Market Funds [Member]              
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]              
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value     0 85,500,000      
Senior Unsecured Notes Due on August 16, 2024              
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]              
Long-term Debt     390,000,000 390,000,000     $ 390,000,000
Senior Unsecured Notes [Member] | IPO [Member]              
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]              
Proceeds from Issuance Initial Public Offering $ 390,000,000.0            
Selling, General and Administrative Expenses [Member]              
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]              
Impairment of Property and Equipment     $ 200,000 $ 1,200,000 $ 700,000