Business Acquisition, Percentage of Agreed Sale Price as Consideration

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- Definition

Business Acquisition, Percentage of Agreed Sale Price as Final Installment Payment

+ References

No definition available.

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- Definition

Business Acquisition, Percentage of Undivided Interests Acquired

+ References

No definition available.

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- Definition

Business Acquistion Percentage Of Agreed Sales Price First Installment Payment

+ References

No definition available.

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- Definition

Consideration Received By Company Upon Completion of Sell Down

+ References

No definition available.

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- Definition

Sale of Business, Percentage of Ownership Before Transaction

+ References

No definition available.

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- Definition

For an unclassified balance sheet, the amount due from customers or clients for goods or services that have been delivered or sold in the normal course of business, reduced to their estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 3

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.9)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.5)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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- Definition

The percentage points added to the reference rate to compute the variable rate on the debt instrument.

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- Definition

The amount of the recorded investment in a contractual right to receive money on demand or on fixed or determinable dates that is recognized as an asset in the creditor's statement of financial position. Examples include, but are not limited to, accounts receivable (with terms exceeding one year), notes receivable and receivables relating to lessor's rights to payments from leases other than operating leases that have been recorded as assets.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Receivable

-URI http://asc.fasb.org/extlink&oid=6953735

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- Definition

Aggregate carrying amount, as of the balance sheet date, of investments and other noncurrent assets not separately disclosed in the balance sheet due to materiality considerations. Noncurrent assets are expected to be realized or consumed after one year (or the normal operating cycle, if longer).

+ References

No definition available.

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Aggregate carrying amount, as of the balance sheet date, of current assets not separately disclosed in the balance sheet. Current assets are expected to be realized or consumed within one year (or the normal operating cycle, if longer).

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 8

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.8)

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

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Financing Receivables (Details) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended
	Sep. 30, 2012 USD ($)	Sep. 30, 2012 AUD	Dec. 31, 2011 USD ($)	Oct. 23, 2011 Coppabella, Moorvale, and Codrilla Mines [Member]	Sep. 30, 2012 Codrilla Mine Project [Member] USD ($)	Dec. 31, 2011 Codrilla Mine Project [Member] USD ($)	Sep. 30, 2012 Middlemount Mine [Member] USD ($)	Dec. 31, 2011 Middlemount Mine [Member] USD ($)	Sep. 30, 2012 Financing Receivable [Member] USD ($)	Dec. 31, 2011 Financing Receivable [Member] USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable	$ 385.1		$ 376.1
Accounts Receivable, Net						34.2			9.8	51.3
Other current assets	697.6		768.0					65.0	0	65.0
Investments and other assets					36.2	35.6	339.1	224.2	375.3	259.8
Percentage of Ownership Before Transaction			85.00%
Percentage of Undivided Interests Acquired				73.30%
Consideration Received By Company Upon Completion of Sell Down		15.0
Percentage of Agreed Sale Price as Consideration	20.00%	20.00%
Business Acquistion Percentage Of Agreed Sales Price First Installment Payment	40.00%	40.00%
Percentage of Agreed Sale Price as Final Installment Payment	40.00%	40.00%
Debt Instrument, Basis Spread on Variable Rate							3.50%