Intangible Assets, Net and Goodwill - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense on intangible assets	$ 78.3	$ 35.9	$ 36.3