Annual report pursuant to Section 13 and 15(d)

Income Taxes - Additional Information (Detail)

v3.7.0.1
Income Taxes - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2017
Mar. 31, 2015
Mar. 31, 2014
Mar. 31, 2016
Income Taxes [Line Items]        
Valuation allowance $ 40,922 $ 21,920   $ 32,026
Change in valuation allowance 8,896      
Unrecognized tax benefits 941 905 $ 61 783
Unrecognized tax benefits, affect annual effective tax rate 1 905   $ 783
Interest/penalties 52 $ (1) $ 0  
Expected unrecognized tax benefits to decrease in next twelve months 140      
U S Federal And State Tax        
Income Taxes [Line Items]        
Net operating loss (NOL) carry-forwards 93,064      
Australia federal tax        
Income Taxes [Line Items]        
Net operating loss (NOL) carry-forwards 6,446      
Israel federal tax        
Income Taxes [Line Items]        
Net operating loss (NOL) carry-forwards $ 2,944