Receivables (Narrative) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Mar. 31, 2013 D	Jun. 30, 2012
Accounts, Notes, Loans and Financing Receivable, Classified [Abstract]
Allowance for doubtful accounts as a percentage of notes receivable	7.00%	6.00%
Minimum days receivable considered delinquent	30
Minimum number of days past due before placed on non-accrual status	60
Number of days to resume interest revenue recognition	60
Financing Receivable, Recorded Investment, Nonaccrual Status	$ 3.2	$ 0.4
Financing Receivable, Recorded Investment, over 60 Days Past Due	$ 0.5	$ 0.1
Percentage of notes receivable that are classified as current	98.00%	100.00%