Annual report pursuant to Section 13 and 15(d)

Borrowings (Details 3)

v3.6.0.2
Borrowings (Details 3) - USD ($)
Jun. 30, 2016
Dec. 25, 2016
Dec. 27, 2015
Additional disclosure      
Loan origination costs   $ 2,300,000 $ 1,700,000
New Credit Facility      
Additional disclosure      
Maximum borrowing capacity $ 20,000,000    
Additional borrowing capacity subject to lender participation 100,000,000    
New Credit Facility | Other assets, net      
Additional disclosure      
Loan origination costs   1,100,000  
Revolving credit facility | New Credit Facility      
Additional disclosure      
Maximum borrowing capacity $ 400,000,000    
Amounts outstanding   335,500,000  
Revolving credit facility | New Credit Facility | Federal Funds Rate      
Additional disclosure      
Interest rate margin (as a percent) 0.50%    
Revolving credit facility | New Credit Facility | LIBOR      
Additional disclosure      
Interest rate margin (as a percent) 1.00%    
Revolving credit facility | New Credit Facility | Canadian Dealer Offered Rate (CDOR)      
Additional disclosure      
Interest rate margin (as a percent) 1.00%    
Letter of credit | New Credit Facility      
Additional disclosure      
Maximum borrowing capacity $ 25,000,000    
Amounts outstanding   $ 8,800,000  
Swingline loans | New Credit Facility      
Additional disclosure      
Maximum borrowing capacity $ 15,000,000