Long-Term Debt and Line of Credit - Narrative (Details) - USD ($)
$ in Millions
Nov. 07, 2019
Mar. 16, 2018
Jul. 07, 2017
May 29, 2021
Aug. 29, 2020
Debt Instrument [Line Items]          
Revolving Credit Facility, Amount Outstanding       $ 0.0 $ 0.0
Letters of Credit Outstanding, Amount       $ 3.5  
Term Loan          
Debt Instrument [Line Items]          
Debt Instrument, Interest Rate, Effective Percentage       4.80%  
Proceeds from long-term line of credit $ 460.0        
Repayments of principal in next twelve months       $ 0.0  
Term Loan | LIBOR          
Debt Instrument [Line Items]          
Basis spread on variable rate 3.75%        
Finance leases          
Debt Instrument [Line Items]          
Debt Instrument, Interest Rate, Effective Percentage       5.60%  
Barclays Bank PLC and Other Parties | Term Loan          
Debt Instrument [Line Items]          
Borrowing capacity     $ 200.0    
Maturity period     7 years    
Barclays Bank PLC and Other Parties | Revolving Credit Facility          
Debt Instrument [Line Items]          
Borrowing capacity     $ 75.0    
Maturity period     5 years    
Net leverage ratio (equal to or less than)     6.25    
Net leverage ratio post reduction (equal to or less than)     6.00    
Percent of commitments (in excess of)     30.00%    
Line of Credit | Base Rate          
Debt Instrument [Line Items]          
Basis spread on variable rate 2.75%        
Line of Credit | Barclays Bank PLC and Other Parties | Base Rate          
Debt Instrument [Line Items]          
Basis spread on variable rate   2.50% 0.50%    
Line of Credit | Barclays Bank PLC and Other Parties | Eurocurrency          
Debt Instrument [Line Items]          
Basis spread on variable rate     1.00%    
Line of Credit | Barclays Bank PLC and Other Parties | LIBOR          
Debt Instrument [Line Items]          
Basis spread on variable rate   3.50%      
Line of Credit | Barclays Bank PLC and Other Parties | Term Loan | Eurocurrency          
Debt Instrument [Line Items]          
Basis spread on variable rate     3.00%    
Line of Credit | Barclays Bank PLC and Other Parties | Term Loan | LIBOR          
Debt Instrument [Line Items]          
Basis spread on variable rate     4.00%    
Interest rate floor     1.00%    
Line of Credit | Barclays Bank PLC and Other Parties | Revolving Credit Facility | Eurocurrency          
Debt Instrument [Line Items]          
Basis spread on variable rate     2.00%    
Line of Credit | Barclays Bank PLC and Other Parties | Revolving Credit Facility | LIBOR          
Debt Instrument [Line Items]          
Basis spread on variable rate     3.00%