Other Assets, Net - Schedule of Other Assets, Net of Accumulated Amortization (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Other Assets, Noncurrent [Abstract]
Deferred financing costs, net	$ 7.1	$ 7.9
Deferred income taxes	17.8	21.1
Advances to and investments in joint ventures, net	34.2	14.7
Other	6.9	7.8
Total other assets, net	$ 66.0	$ 51.5