Discontinued Operations - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Discontinued Operations And Disposal Groups [Abstract]
Costs related to closure	$ 41.0
Estimated total future closure costs		0.5
Future completion period, closure		2015
Net sales from discontinued operation			5.6	72.7
Operating loss from discontinued operation		$ (0.2)	$ (0.3)	$ (43.7)