BUSINESS COMBINATIONS, OneCloud Consulting Inc. Acquisition (Details) - USD ($) $ in Thousands		12 Months Ended
	May 17, 2017	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2016
Business Acquisition [Line Items]
Fair value of contingent consideration		$ 7,707	$ 0
Allocation of Purchase Price Consideration to Assets Acquired and Liabilities Assumed [Abstract]
Goodwill		$ 76,624	$ 48,397	$ 42,151
OneCloud Consulting, Inc [Member]
Business Acquisition [Line Items]
Percentage of stock acquired	100.00%
Cash portion of the acquisition	$ 7,900
Fair value of contingent consideration	2,100
Fair value of contingent consideration, maximum	4,500
Contingent consideration payout period		3 years
Allocation of Purchase Price Consideration to Assets Acquired and Liabilities Assumed [Abstract]
Accounts receivable and other assets	488
Identified intangible assets	4,130
Accounts payable and other current liabilities	(1,822)
Total identifiable net assets	2,796
Goodwill	7,189
Total purchase consideration	9,985
OneCloud Consulting, Inc [Member] | Customer Relationships [Member]
Allocation of Purchase Price Consideration to Assets Acquired and Liabilities Assumed [Abstract]
Total identifiable net assets	1,700
Estimated useful lives		8 years
OneCloud Consulting, Inc [Member] | Internally Developed Processes [Member]
Allocation of Purchase Price Consideration to Assets Acquired and Liabilities Assumed [Abstract]
Total identifiable net assets	$ 2,400
Estimated useful lives		5 years