Annual report pursuant to Section 13 and 15(d)

Income Taxes - Additional Information (Detail)

v3.19.1
Income Taxes - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Mar. 31, 2017
Mar. 31, 2016
Income Taxes [Line Items]        
Tax Cuts and Jobs Act of 2017, change in tax rate, deferred tax asset   $ 14,830    
Valuation allowance $ (27,972) (30,394) $ (40,922)  
Decrease in valuation allowance 2,422      
Unrecognized tax benefits, affect annual effective tax rate 788 838 941 $ 783
Expense (benefit) for interest and penalties 45 $ 26 $ (52)  
U S Federal And State Tax        
Income Taxes [Line Items]        
Net operating loss (NOL) carry-forwards 86,896      
Australia federal tax        
Income Taxes [Line Items]        
Net operating loss (NOL) carry-forwards 6,043      
Israel federal tax        
Income Taxes [Line Items]        
Net operating loss (NOL) carry-forwards 2,461      
State NOL true-up        
Income Taxes [Line Items]        
Decrease in valuation allowance $ 2,410