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Incentive Plan - Market Performance Based Awards (Details)
$ in Millions
1 Months Ended 6 Months Ended 12 Months Ended
Feb. 27, 2022
Feb. 27, 2021
item
Jan. 31, 2021
shares
Jun. 30, 2021
USD ($)
Jun. 30, 2020
USD ($)
Dec. 31, 2020
shares
Market performance-based awards            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Performance period   3 years        
Number of trials | item   100,000        
Fair value of awards | $       $ 25.0 $ 17.2  
Award requisite service period       4 years    
Market performance-based awards | 2018 Awards            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Vesting of restricted common units, net (units)     63,498      
Market performance-based awards | First Vesting Period in February | 2018 Awards            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Vesting percentage   50.00%        
Market performance-based awards | Second Vesting Period in February | 2018 Awards            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Vesting percentage 50.00%          
Class D Units | 2018 Awards            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Vesting of restricted common units, net (units)     240,377      
Distribution Equivalent Unit | 2018 Awards            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Vesting of restricted common units, net (units)           20,725