Goodwill and Other Intangible Assets, Net - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013 Americas [Member]	Dec. 31, 2012 Americas [Member]	Jun. 30, 2013 Europe [Member]	Dec. 31, 2012 Europe [Member]	Jun. 30, 2013 Asia Pacific [Member]	Dec. 31, 2012 Asia Pacific [Member]
Goodwill And Other Intangible Assets [Line Items]
other intangible assets					$ 25.2	$ 27.7	$ 3.4	$ 4.0	$ 0.2	$ 0.3
Intangible asset amortization expense	1.5	0.2	2.9	0.4
Estimated intangible asset amortization expense 2013	5.8		5.8
Estimated intangible asset amortization expense 2014	5.4		5.4
Estimated intangible asset amortization expense 2015	4.6		4.6
Estimated intangible asset amortization expense 2016	4.4		4.4
Estimated intangible asset amortization expense 2017	$ 3.6		$ 3.6