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

Debt - Summary of Long-term Debt (Details)

v3.7.0.1
Debt - Summary of Long-term Debt (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 30, 2017
Mar. 31, 2016
Dec. 29, 2016
Dec. 31, 2015
Dec. 25, 2014
Debt Instrument [Line Items]          
Total debt at par value $ 363,625   $ 400,000 $ 179,233  
Less: current maturities     3,500 1,267  
Long-term debt maturities     396,500 177,966  
Less: unamortized discount and debt issuance costs 8,915   9,257 1,643  
Total long-term debt     387,243 176,323  
Debt issuance costs $ 0 $ 17 10,546 93 $ 208
Term Loan Facility          
Debt Instrument [Line Items]          
Total debt at par value     $ 350,000 0  
Interest Rate per Annum     5.25%    
Debt issuance costs     $ 10,347    
Quarterly repayment amount     $ 875    
LIBOR floor (as a percent)     1.00%    
Term Loan Facility | Base Rate [Member]          
Debt Instrument [Line Items]          
Variable interest rate (as a percent)     3.25%    
Term Loan Facility | London Interbank Offered Rate (LIBOR) [Member]          
Debt Instrument [Line Items]          
Variable interest rate (as a percent)     4.25%    
Term Loan Facility | Federal Funds Rate [Member]          
Debt Instrument [Line Items]          
Variable interest rate (as a percent)     0.50%    
ABL Facility          
Debt Instrument [Line Items]          
Total debt at par value     $ 50,000 92,900  
Interest Rate per Annum     2.08%    
Term loan face amount     $ 200,000    
Loss on extinguishment of debt     $ (162)    
LIBOR floor (as a percent)     1.00%    
ABL Facility | Federal Funds Rate [Member]          
Debt Instrument [Line Items]          
Variable interest rate (as a percent)     0.50%    
Prior Term Loan Facility          
Debt Instrument [Line Items]          
Total debt at par value     $ 0 8,333  
Interest Rate per Annum     3.30%    
Prior Term Loan Facility And GCI Facility          
Debt Instrument [Line Items]          
Loss on extinguishment of debt     $ 1,319    
GCI Facility          
Debt Instrument [Line Items]          
Total debt at par value     $ 0 $ 78,000  
Interest Rate per Annum     7.75%