XML 103 R96.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Revolving Credit Facility (Detail) In Millions, unless otherwise specified | 6 Months Ended | 12 Months Ended |  |  |  |  | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2010 USD ($) | Dec. 31, 2012 USD ($) | Dec. 31, 2011 USD ($) | Jun. 30, 2010 USD ($) | Dec. 31, 2012 ZAR | Nov. 28, 2012 USD ($) | Nov. 28, 2012 ZAR | Nov. 16, 2012 ZAR | Oct. 24, 2012 USD ($) | Oct. 24, 2012 ZAR | Dec. 31, 2012 Collateralized R1 billion syndicated revolving credit facility USD ($) | Dec. 31, 2011 Collateralized R1 billion syndicated revolving credit facility USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Opening balance |  |  |  |  | 3,000.0 | $ 700.1 | 6,000.0 | 1,000.0 | $ 58.3 | 500.0 | $ 220.0 |
Long and short-term loans raised | 1,543.8 | 1,451.0 | 1,167.9 | 1,619.9 |  |  |  |  |  |  | 666.0 | 483.0
Long and short-term loans repaid | (1,330.8) | (975.9) | (654.6) | (1,637.5) |  |  |  |  |  |  | (220.0) | (263.0)
Translation |  |  |  |  |  |  |  |  |  |  |  |
Closing balance |  | $ 350.0 |  |  | 3,000.0 | $ 700.1 | 6,000.0 | 1,000.0 | $ 58.3 | 500.0 | $ 666.0 | $ 220.0

X
- Definition The increase (decrease) in cumulative translation adjustment before transfers included in determining net income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -Subparagraph (b),(c) -URI http://asc.fasb.org/extlink&oid=6915805&loc=d3e32211-110900 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 23, 24, 25, 26 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_CumulativeTranslationAdjustmentNetOfTaxPeriodIncreaseDecrease
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount borrowed under the credit facility as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
Name: | us-gaap_LineOfCreditFacilityAmountOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt. + References No definition available. + Details
Name: | us-gaap_ProceedsFromIssuanceOfDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations. + References No definition available. + Details
Name: | us-gaap_RepaymentsOfDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration