Annual report pursuant to Section 13 and 15(d)

Goodwill - Additional Information (Detail)

v3.7.0.1
Goodwill - Additional Information (Detail)
$ in Thousands
12 Months Ended
Mar. 31, 2017
USD ($)
reporting_unit
Mar. 31, 2016
USD ($)
Mar. 31, 2015
USD ($)
Goodwill And Intangible Assets [Line Items]      
Number of reporting units with carrying values greater than 10% of fair value | reporting_unit 3    
Adjustments $ 0 $ (126) $ 71,910
Mirror Image International Holdings Pvt Ltd      
Goodwill And Intangible Assets [Line Items]      
Adjustments     1,472
XYO      
Goodwill And Intangible Assets [Line Items]      
Acquisition     1,000
DT Media (Appia)      
Goodwill And Intangible Assets [Line Items]      
Acquisition     $ 69,438