Receivables (Schedule Of Aging Of Notes Receivable) (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2012	Jun. 30, 2011
Receivables [Abstract]
Over 30 days to 60 days	$ 1.3	$ 1.2
Over 60 days	$ 0.6	$ 0.1

Financing receivables that are less than 60 days past due but more than 29 days past due.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 7A

-URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953401-111524

Name:	us-gaap_FinancingReceivableRecordedInvestment30To59DaysPastDue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant