Commitments and Contingencies - Summary of Earnings from Claims Related to Durom Cup (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended						72 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008	Dec. 31, 2013
Commitments And Contingencies Disclosure [Abstract]
Certain claims	$ 47.0	$ 15.0	$ 157.8	$ 75.0	$ 35.0	$ 69.0	$ 398.8
Selling, general and administrative			4.2	15.4	24.6	7.2	51.4
Total	$ 47.0	$ 15.0	$ 162.0	$ 90.4	$ 59.6	$ 76.2	$ 450.2