Annual report pursuant to Section 13 and 15(d)

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

v3.3.1.900
Long-Term Debt - Schedule of Long-Term Debt (Detail) - USD ($)
$ in Millions
Dec. 31, 2015
Dec. 31, 2014
Debt Disclosure [Abstract]    
Senior secured credit facility, carrying value $ 639.5 $ 848.3
Convertible senior notes, carrying value of liability component 982.5 943.5
Total 1,622.0 1,791.8
Less: current portion 229.5 100.0
Long-term portion $ 1,392.5 $ 1,691.8