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Long-Term Debt - Schedule of Long-Term Debt (Detail) (USD $)
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Jun. 30, 2014
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Dec. 31, 2013
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| Debt Instrument [Line Items] | ||
| Borrowings under the senior secured credit facility | $ 893,800,000 | $ 931,300,000 |
| Total | 1,838,000,000 | 931,300,000 |
| Less: current portion | 93,751,000 | 81,250,000 |
| Long-term portion | 1,744,236,000 | 850,019,000 |
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Convertible Senior Notes [Member]
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| Debt Instrument [Line Items] | ||
| Convertible senior notes, carrying value of liability component | $ 944,200,000 |
| X | ||||||||||
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- Definition
Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Amount borrowed under the credit facility as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of long-term debt and capital leases due within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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