Quarterly report pursuant to Section 13 or 15(d)

Equity, Long-Term Incentive Compensation Plans and Non-controlling Interest - Cash-Based Long-Term Incentive Compensation (Details)

v3.20.1
Equity, Long-Term Incentive Compensation Plans and Non-controlling Interest - Cash-Based Long-Term Incentive Compensation (Details) - Cash long-term incentive plan
$ in Millions
 3 Months Ended 9 Months Ended
Mar. 31, 2020
USD ($)
Mar. 31, 2019
USD ($)
Mar. 31, 2020
USD ($)
Installment
Mar. 31, 2019
USD ($)
Cash Long-Term Incentive Plan        
Cash-based long-term incentive plan, granted amount     $ 6.0 $ 7.9
Cash long-term incentive plan, compensation expense $ 14.7 $ 12.2 45.4 $ 39.4
Cash long-term incentive plan, unrecognized compensation balance $ 105.8   $ 105.8  
Minimum        
Cash Long-Term Incentive Plan        
Cash long-term incentive plan, equal vesting installments | Installment     3  
Cash long-term incentive plan, percentage of equal vesting installments     33.33%  
Cash long-term incentive plan, vesting period     3 years  
Maximum        
Cash Long-Term Incentive Plan        
Cash long-term incentive plan, equal vesting installments | Installment     4  
Cash long-term incentive plan, percentage of equal vesting installments     25.00%  
Cash long-term incentive plan, vesting period     4 years