Annual report pursuant to Section 13 and 15(d)

401K PLAN (Details)

v3.7.0.1
401K PLAN (Details) - USD ($)
$ in Millions
12 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Mar. 31, 2015
Compensation and Retirement Disclosure [Abstract]      
Employer contributions $ 1.3 $ 0.6 $ 2.4