Income Taxes (Components Of Net Deferred Tax Assets) (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
U.S. loss carryforwards	$ 2.1	$ 2.5
Foreign loss carryforwards	2.3	13.9
Accrued expenses	47.7	49.8
Tax credit carryforwards	1.1	1.7
Provision for losses on receivables	1.0	1.6
Deferred compensation	15.0	13.2
Deferred revenue	30.9	22.6
deferred tax assets, revenue recognition	4.5	0.0
Intercompany loans	0.0	0.2
Other	2.7	2.0
Gross deferred tax assets	107.3	107.5
Deferred tax asset valuation allowance	(2.7)	(16.1)
Total deferred tax assets	104.6	91.4
Property and equipment	(40.9)	(43.0)
Revenue recognition	0.0	(5.7)
Intangible assets	(31.4)	(29.0)
Other	(9.8)	(5.9)
Total deferred tax liabilities	(82.1)	(83.6)
Deferred tax assets (liabilities), net	$ 22.5	$ 7.8