v3.3.0.814
Other Items - Summary of Interest and Other Financial (Costs) (Detail) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Other Income and Expenses [Abstract]        
Interest income $ 0.1 $ 0.0 $ 0.2 $ 0.0
Interest expense (5.9) (1.2) (18.0) (3.1)
Interest capitalized (1.2) (0.2) (2.6) (0.7)
Other financial costs (0.6) (0.1) (1.5) (0.6)
Net interest and other financial costs $ 5.2 $ 1.1 $ 16.7 $ 3.0