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Long-Term Debt - Additional information (Detail)
1 Months Ended 3 Months Ended 6 Months Ended
Dec. 31, 2016
USD ($)
Oct. 31, 2015
USD ($)
Jul. 01, 2017
USD ($)
Jul. 04, 2015
USD ($)
Jul. 01, 2017
USD ($)
subsidiary
Jun. 30, 2015
USD ($)
Debt Instrument [Line Items]            
Long-term debt $ 166,896,000   $ 169,627,000   $ 169,627,000  
Parsons, KS | Municipal Bonds            
Debt Instrument [Line Items]            
Revenue bonds purchased 9,900,000          
Parsons, KS            
Debt Instrument [Line Items]            
Proceeds received from sale of property to be leased back 9,900,000          
Total lease liability from assets sold $ 9,900,000          
Interest rate cap            
Debt Instrument [Line Items]            
Interest rate hedge   $ 135,000,000        
Payments made for interest rate hedge   $ 1,000,000        
New Credit Facilities            
Debt Instrument [Line Items]            
Number of subsidiaries that are not guarantors on debt | subsidiary         1  
New Credit Facilities | First two years            
Debt Instrument [Line Items]            
Prepayment amount of principal outstanding     5.00%   5.00%  
New Credit Facilities | Third year            
Debt Instrument [Line Items]            
Prepayment amount of principal outstanding     7.50%   7.50%  
New Credit Facilities | Fourth and fifth years            
Debt Instrument [Line Items]            
Prepayment amount of principal outstanding     10.00%   10.00%  
New Credit Facilities | Minimum            
Debt Instrument [Line Items]            
Commitment fee         0.175%  
New Credit Facilities | Maximum            
Debt Instrument [Line Items]            
Commitment fee         0.30%  
New Credit Facilities | LIBOR | Minimum            
Debt Instrument [Line Items]            
Spread on variable rate         1.50%  
New Credit Facilities | LIBOR | Maximum            
Debt Instrument [Line Items]            
Spread on variable rate         2.75%  
New Credit Facilities | Federal Funds Rate            
Debt Instrument [Line Items]            
Spread on base rate         0.50%  
New Credit Facilities | Eurodollar Rate            
Debt Instrument [Line Items]            
Spread on base rate         1.00%  
New Credit Facilities | Base Rate | Minimum            
Debt Instrument [Line Items]            
Spread on variable rate         0.50%  
New Credit Facilities | Base Rate | Maximum            
Debt Instrument [Line Items]            
Spread on variable rate         1.75%  
Senior Secured Term Loan | New Credit Facilities            
Debt Instrument [Line Items]            
Debt amount           $ 275,000,000.0
Term       5 years    
Repayments of long-term debt     $ 5,000,000   $ 10,000,000  
Revolving Credit Facility | New Credit Facilities            
Debt Instrument [Line Items]            
Debt amount           $ 200,000,000.0
Debt issuance costs       $ 4,800,000    
Borrowings from debt         12,200,000  
Remaining borrowing capacity     186,800,000   186,800,000  
Outstanding standby letters of credit     $ 1,000,000   $ 1,000,000