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Restructuring Plan (Details)
$ in Thousands
3 Months Ended 6 Months Ended
Sep. 30, 2016
USD ($)
Sep. 30, 2015
USD ($)
Sep. 30, 2016
USD ($)
employee
Sep. 30, 2015
USD ($)
Restructuring Costs [Abstract]        
Number of positions eliminated | employee     150  
Percentage of U.S. based positions eliminated     6.00%  
Restructuring expense $ 701 $ 0 $ 4,454 $ 0
Restructuring Costs     $ 701 $ 0