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Long-Term Debt - Redemption Price Percentage of Senior Secured Notes (Parenthetical) (Detail) | 12 Months Ended
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Dec. 31, 2014
2016 [Member] |
Debt Instrument [Line Items] |
Redemption price | 103.875%us-gaap_DebtInstrumentRedemptionPricePercentage / us-gaap_DebtInstrumentRedemptionPeriodAxis = us-gaap_DebtInstrumentRedemptionPeriodOneMember
2017 [Member] |
Debt Instrument [Line Items] |
Redemption price | 101.938%us-gaap_DebtInstrumentRedemptionPricePercentage / us-gaap_DebtInstrumentRedemptionPeriodAxis = us-gaap_DebtInstrumentRedemptionPeriodTwoMember
2018 and Thereafter [Member] |
Debt Instrument [Line Items] |
Redemption price | 100.00%us-gaap_DebtInstrumentRedemptionPricePercentage / us-gaap_DebtInstrumentRedemptionPeriodAxis = us-gaap_DebtInstrumentRedemptionPeriodThreeMember

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- Definition Percentage price of original principal amount of debt at which debt can be redeemed by the issuer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph e -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 + Details
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