Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Loss on Debt and SBC (Details)

v3.8.0.1
Summary of Significant Accounting Policies - Loss on Debt and SBC (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
May 02, 2017
Dec. 28, 2017
Dec. 29, 2016
Dec. 31, 2015
Gain (Loss) on Extinguishment of Debt [Abstract]        
Number of shares issued 10,147,025      
Common stock, par value $ 0.001      
Net proceeds $ 192,000      
Payments on term loans $ 192,000 $ 197,500 $ 98,334 $ 1,667
Loss on extinguishment of debt   $ 5,442 $ 1,813  
Minimum | Stock options        
Stock-Based Compensation        
Period of vesting provision   3 years    
Maximum | Stock options        
Stock-Based Compensation        
Period of vesting provision   5 years