Quarterly report pursuant to Section 13 or 15(d)

Equity Based Compensation (Details)

v3.10.0.1
Equity Based Compensation (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
Jun. 29, 2018
Jun. 30, 2018
Jun. 30, 2018
Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Equity based compensation (Note 15)   $ 17,500 $ 17,487 $ 0
Specified Member Awards        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Fair value of the award as of the modification dates or grant date   5,600 5,600  
Non-Employees Member        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Fair value of the award as of the modification dates or grant date   $ 43,100 $ 43,100  
MEh Sub LLC | Secondary Public Offering        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares issued (in shares) 2,764,400      
Sale of stock, price per share (in USD per share) $ 38.01