Restructuring Plan (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
Restructuring Costs [Abstract]
Restructuring expense	$ 7,078	$ 0	$ 0
Other Restructuring Costs	1,661
Restructuring Costs, Liability	606
Restructuring and Related Cost, Expected Cost	$ 2,285