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Equity-Based Compensation - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 9 Months Ended
May 22, 2020
Nov. 22, 2019
Nov. 14, 2019
Dec. 31, 2019
Jun. 30, 2020
Oct. 22, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Stock options issued to holders of units, weighted average exercise price   $ 16.89        
Stock options weighted average grant date fair value   $ 8.06        
Non-cash equity-based compensation expense over the requisite service period   $ 6.6        
Unamortized value of outstanding stock-based compensation         $ 41.4  
Unamortized value of outstanding stock-based compensation, weighted average remaining life         2 years 2 months 12 days  
ESPP            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Common stock shares available for sale           1,100,000
Common stock shares issued     172,000      
Nonforfeitable Restricted Stock Units (RSUs)            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Issued shares of common stock   194,000        
Weighted average exercise price   $ 16.89        
Vesting period   2 years        
Vesting terms         first anniversary of the grant date  
Non-cash equity-based compensation expense over the requisite service period       $ 3.3    
Restricted Stock Units (RSUs)            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Issued shares of common stock 73,000 454,000        
Weighted average exercise price $ 13.66 $ 16.89        
Vesting period 4 years 4 years        
Non-cash equity-based compensation expense over the requisite service period $ 0.9 $ 6.8        
Stock Options            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Vesting period   4 years        
Stock options issued to holders of units   953,000