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Equity-Based Compensation - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Nov. 28, 2018
Dec. 31, 2018
Oct. 22, 2018
Jun. 28, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Stock options issued to holders of units, weighted average exercise price $ 13.49      
Stock options weighted average grant date fair value $ 5.85      
Non-cash equity-based compensation expense over the requisite service period $ 6,091      
Unamortized value of outstanding stock-based compensation   $ 58,334    
Unamortized value of outstanding stock-based compensation, weighted average remaining life   2 years 4 months 24 days    
Restricted Stock        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Issued shares of common stock 492,000      
Vesting period 4 years      
Weighted average exercise price $ 13.49      
Non-cash equity-based compensation expense over the requisite service period $ 6,156      
Stock Options        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Vesting period 4 years      
Stock options issued to holders of units 1,123,000      
2018 Omnibus Incentive Plan        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Number of shares of common stock that may be issued       11,650,000
ESPP        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Common stock shares available for sale     1,100,000