Debt - Outstanding Debt (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Debt Disclosure [Abstract]
Commercial Paper	$ 38.0	$ 0
Short-term loans	0	12.7
Current maturities of long-term debt	1.3	3.6
Current capital leases	0.5	0.5
Short-term loans and current maturities of long-term debt	39.8	16.8
Non-current maturities of long-term debt	7.6	8.5
Non-current capital leases	1.5	1.6
Long-term debt and capital leases	9.1	10.1
Total debt and capital leases	$ 48.9	$ 26.9