Quarterly report pursuant to Section 13 or 15(d)

Product Warranty Liability - Additional Information (Detail)

v3.7.0.1
Product Warranty Liability - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Guarantees [Abstract]    
(Income) expense for product warranties $ (160) $ 166