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Total Debt Outstanding (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified | Sep. 30, 2012 | Dec. 31, 2011
--- | --- | ---
5.625 % Senior Notes due July 2013 [Member] |  |
Debt Instrument [Line Items] |  |
Debt interest rate | 5.625% | 5.625%
Unamortized discount |  | $ 0.3
12% Senior Notes due February 2014 [Member] |  |
Debt Instrument [Line Items] |  |
Debt interest rate | 12.00% | 12.00%
7.875% Senior Notes due June 2017 [Member] |  |
Debt Instrument [Line Items] |  |
Debt interest rate | 7.875% | 7.875%
Unamortized discount | 5.7 | 6.5
8.125% Senior Notes due 2019 [Member] |  |
Debt Instrument [Line Items] |  |
Debt interest rate | 8.125% | 8.125%
8.375% Senior Notes due 2021 [Member] |  |
Debt Instrument [Line Items] |  |
Debt interest rate | 8.375% | 8.375%
6.875% Senior Notes due July 2033 [Member] |  |
Debt Instrument [Line Items] |  |
Debt interest rate | 6.875% | 6.875%
Unamortized discount | 1.4 | 1.4
Multicurrency term A facility tranche [Member] |  |
Debt Instrument [Line Items] |  |
Unamortized lender fees | 14.7 | 19.6
Multicurrency term B facility tranche [Member] |  |
Debt Instrument [Line Items] |  |
Unamortized discount | 23.4 | 26.5
Unamortized lender fees | 18.1 | $ 21.3

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- Definition Interest rate stated in the contractual debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -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 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 21 -Paragraph 16, 20 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number APB14-1 -Paragraph 31 -Subparagraph b -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. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400 + Details
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