Quarterly report pursuant to Section 13 or 15(d)

Equity and Long-Term Incentive Compensation Plans - Cash Long-Term Incentive Plan (Details)

v3.5.0.2
Equity and Long-Term Incentive Compensation Plans - Cash Long-Term Incentive Plan (Details) - Cash long-term incentive plan
$ in Millions
3 Months Ended
Sep. 30, 2016
USD ($)
vesting_installment
Sep. 30, 2015
USD ($)
Cash Long-Term Incentive Plan    
Cash-based long-term incentive plan, approved amount $ 1.6 $ 0.3
Cash long-term incentive plan, number of equal vesting installments | vesting_installment 4  
Cash long-term incentive plan, percentage of equal vesting installments (as a percent) 25.00%  
Cash long-term incentive plan, vesting period (in years) 4 years  
Cash long-term incentive program, compensation expense $ 12.2 $ 9.9
Cash long-term incentive plan, unrecognized compensation balance $ 75.4