Annual report pursuant to Section 13 and 15(d)

Intangible Assets (Detail)

v3.3.1.900
Intangible Assets (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]      
Amortization expense for intangibles $ 11.3 $ 15.8 $ 4.9