Receivables (Narrative) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Jun. 30, 2011
Receivables [Abstract]
Allowance for doubtful accounts as a percentage of notes receivable	7.00%		6.00%
Financing Receivable, Recorded Investment, Nonaccrual Status	$ 1.3	$ 1.8
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	$ 0.6	$ 0.5
Charge-offs as a percentage of notes receivable	1.00%	1.00%
Percentage of notes receivable that are classified as current	99.00%		99.00%