Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition - Additional Information (Detail)

v2.4.0.8
Revenue Recognition - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Sep. 30, 2013
Revenue Recognition [Line Items]  
Company recognizes planned manufacturing process 28 days
Direct labor hours worked on contracts 0 days 575 hours
Reserve for credit losses related to unbilled revenue $ 0
Minimum [Member]
 
Revenue Recognition [Line Items]  
Substantial completion of manufacturing process 95.00%