Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

+ Details

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Namespace Prefix:	invest_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

Derivative forward sale contract settlement, shares delivered.

+ References

No definition available.

+ Details

Name:	rah_DerivativeForwardSaleContractSettlementSharesDelivered
Namespace Prefix:	rah_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

The date the derivative matures.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeMaturityDates
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of other deferred costs charged against earnings in the period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.17)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Gross amount of other deferred costs capitalized at the end of the reporting period. Does not include deferred finance costs or deferred acquisition costs of insurance companies.

+ References

+ Details

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

- Definition

The cash inflow provided by derivative instruments during the period, which are classified as financing activities, excluding those designated as hedging instruments.

+ References

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

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 23

-Name Accounting Standards Codification

-Publisher FASB

-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3505-108585

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Forward Sale Contracts (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2009	Sep. 30, 2007
Number of shares under forward sale contract			4,950,000
Discounted advance payment received, financing activities	$ 140.0
Discount on advance payment		44.1
Amortization of discount on advance payments for forward sale contract		$ 5.1
Number of shares delivered on settlement		3,503,263
Maximum [Member]
Forward sale contract maturity date		Nov. 15, 2013
Minimum [Member]
Forward sale contract maturity date		Nov. 21, 2008