Quarterly report pursuant to Section 13 or 15(d)

Inventory - Additional Information (Detail)

v2.4.0.8
Inventory - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Inventory [Line Items]    
Provision for excess and obsolete inventory $ 2.9 $ 2.8