Quarterly report pursuant to sections 13 or 15(d)

Goodwill - Additional Information (Detail)

v2.4.0.8
Goodwill - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended 12 Months Ended
Sep. 30, 2013
Sep. 30, 2013
Mar. 31, 2013
Goodwill And Intangible Assets [Line Items]      
Goodwill impairment $ 0 $ 0 $ 1,119