Product Warranty Liability - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 9 Months Ended | ||
---|---|---|---|---|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2014
|
Dec. 31, 2013
|
|
Guarantees [Abstract] | ||||
Income for product warranties | $ 436 | $ (47) | $ 573 | $ 11 |