Revenue Recognition - Narrative (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Dec. 31, 2019	Dec. 31, 2018	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Total revenues	$ 810.5	$ 878.4		$ 1,535.7	$ 1,652.8
Contract liabilities, current	428.3			428.3		$ 458.9
Unearned revenues	299.1			299.1		$ 318.6
Write-off of contract costs	42.7
Consumer related
Disaggregation of Revenue [Line Items]
Total revenues	348.9	368.2	$ 327.8	672.0	696.0
Subscription
Disaggregation of Revenue [Line Items]
Total revenues	159.8	192.0		310.3	352.7
Revenue recognized				296.4
Total other
Disaggregation of Revenue [Line Items]
Total revenues	34.3	17.9		56.8	$ 39.0
Restatement Adjustment
Disaggregation of Revenue [Line Items]
Write-off of contract liability	42.7
Restatement Adjustment | Consumer related
Disaggregation of Revenue [Line Items]
Total revenues	9.9	$ 15.7	$ 12.5	21.6
Restatement Adjustment | Total other
Disaggregation of Revenue [Line Items]
Total revenues	$ (9.9)			$ (21.6)