BASIS OF PRESENTATION, CONSOLIDATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Other Intangible Assets (Details) $ in Thousands	9 Months Ended
	Dec. 31, 2017 USD ($)
Finite-lived Intangible Assets [Roll Forward]
Intangible assets - beginning balance	$ 27,212
Foreign currency translation	355
Intangible assets - ending balance	27,567
Accumulated amortization of intangible assets - beginning balance	(21,476)
Amortization expense	(669)
Accumulated amortization of intangible assets - ending balance	$ (22,145)
Weighted average remaining contractual life, in years	5 years 2 months
Client contracts
Finite-lived Intangible Assets [Roll Forward]
Intangible assets - beginning balance	$ 8,169
Foreign currency translation	1
Intangible assets - ending balance	8,170
Accumulated amortization of intangible assets - beginning balance	(8,155)
Amortization expense	(13)
Accumulated amortization of intangible assets - ending balance	$ (8,168)
Weighted average remaining contractual life, in years	1 month
Client relationships
Finite-lived Intangible Assets [Roll Forward]
Intangible assets - beginning balance	$ 12,752
Foreign currency translation	46
Intangible assets - ending balance	12,798
Accumulated amortization of intangible assets - beginning balance	(11,071)
Amortization expense	(224)
Accumulated amortization of intangible assets - ending balance	$ (11,295)
Weighted average remaining contractual life, in years	3 years 7 months
Trade name and trademarks
Finite-lived Intangible Assets [Roll Forward]
Intangible assets - beginning balance	$ 4,483
Foreign currency translation	272
Intangible assets - ending balance	4,755
Accumulated amortization of intangible assets - beginning balance	(908)
Amortization expense	(221)
Accumulated amortization of intangible assets - ending balance	$ (1,129)
Weighted average remaining contractual life, in years	13 years 1 month
Internally developed software
Finite-lived Intangible Assets [Roll Forward]
Intangible assets - beginning balance	$ 1,062
Foreign currency translation	32
Intangible assets - ending balance	1,094
Accumulated amortization of intangible assets - beginning balance	(685)
Amortization expense	(167)
Accumulated amortization of intangible assets - ending balance	$ (852)
Weighted average remaining contractual life, in years	1 year 9 months
Licenses
Finite-lived Intangible Assets [Roll Forward]
Intangible assets - beginning balance	$ 746
Foreign currency translation	4
Intangible assets - ending balance	750
Accumulated amortization of intangible assets - beginning balance	(657)
Amortization expense	(44)
Accumulated amortization of intangible assets - ending balance	$ (701)
Weighted average remaining contractual life, in years	1 year 7 months