Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Schedule of Long-Term Debt (Detail)

v2.4.0.8
Long-Term Debt - Schedule of Long-Term Debt (Detail) (USD $)
Sep. 30, 2014
Dec. 31, 2013
Debt Instrument [Line Items]    
Borrowings under the senior secured credit facility $ 875,000,000 $ 931,300,000
Total 1,827,900,000 931,300,000
Less: current portion 100,000,000 81,250,000
Long-term portion 1,727,919,000 850,019,000
Convertible Senior Notes [Member]
   
Debt Instrument [Line Items]    
Convertible senior notes, carrying value of liability component $ 952,900,000