XML 32 R32.htm IDEA: XBRL DOCUMENT v2.4.0.8
Other Financial Statement Information - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Inventory Disclosure [Abstract]          
Cost of inventories for certain materials using LIFO method $ 25.9   $ 25.9   $ 25.1
(Benefit) charge to earnings from LIFO inventory changes $ (0.1) $ 0.2 $ (0.1) $ 0.2