Annual report pursuant to Section 13 and 15(d)

Inventories (Detail)

v3.7.0.1
Inventories (Detail) - USD ($)
$ in Millions
Dec. 31, 2016
Dec. 31, 2015
Inventory Disclosure [Abstract]    
Reserve for inventory valuation $ 15.4 $ 14.6
Percentage of reserve for inventory valuation 11.70% 11.20%