FAIR VALUE MEASUREMENTS - Narrative (Details) - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2017	Aug. 21, 2017	Mar. 31, 2017	Nov. 30, 2011
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated fair value of contingent purchase consideration	$ 5,426		$ 5,449
Fair value, measurements, recurring | Contingent Purchase Consideration
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deal related compensation expense, accretion charges and changes related to settlements of contractual non-compliance liabilities	114
Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated fair value of contingent purchase consideration	5,426		5,449
Avvasi
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated fair value of contingent purchase consideration		$ 660	660
Avvasi | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated fair value of contingent purchase consideration			$ 660
Simena
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated fair value of contingent purchase consideration				$ 8,000
Simena | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated fair value of contingent purchase consideration	4,900
Efflux
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated fair value of contingent purchase consideration	523
Efflux | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated fair value of contingent purchase consideration	$ 523