Revenue - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Jun. 30, 2020
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Recognition of deferred revenue	$ 8.4	$ 15.8	$ 17.2	$ 26.9
Remaining performance obligations amount	$ 1,020.5		$ 1,020.5
Percentage of changes in operating results on entity's revenue			22.00%
Capitalized contract cost, amortization period	5 years		5 years
Capitalized costs to obtain a contract	$ 7.1		$ 7.1		$ 7.9
Impairment loss	0.2	0.0	0.3	0.1
Capitalized contract cost, amortization	0.6	$ 0.5	1.2	$ 1.0
Long-term Warranty and Service
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Remaining performance obligations amount	77.6		77.6
Performance Obligations Other Than Warrant
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Remaining performance obligations amount	$ 942.9		$ 942.9