Revenue from Contracts with Customers, Performance Obligations (Details) $ in Millions	Jun. 30, 2019 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-06-30
Revenue, Performance Obligation [Abstract]
Remaining performance obligation amount	$ 218.9
Remaining performance obligation, expected timing of satisfaction, period	12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-06-30
Revenue, Performance Obligation [Abstract]
Remaining performance obligation amount	$ 50.5
Remaining performance obligation, expected timing of satisfaction, period