GOODWILL AND OTHER INTANGIBLE ASSETS, Other Intangible assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Mar. 31, 2019
Other Intangible Assets [Abstract]
Intangibles assets, Gross carrying amount	$ 67,628		$ 67,595
Intangibles Assets, Accumulated amortization / Impairment Loss	(31,109)		(28,667)
Intangible assets, Net Carrying Amount	36,519		38,928
Total amortization expense for other intangible assets	2,500	$ 1,800
Customer Relationships and Other Intangibles [Member]
Other Intangible Assets [Abstract]
Intangibles assets, Gross carrying amount	57,343		57,407
Intangibles Assets, Accumulated amortization / Impairment Loss	(26,012)		(23,865)
Intangible assets, Net Carrying Amount	$ 31,331		33,542
Customer Relationships and Other Intangibles [Member] | Minimum [Member]
Other Intangible Assets [Abstract]
Estimated useful life	5 years
Customer Relationships and Other Intangibles [Member] | Maximum [Member]
Other Intangible Assets [Abstract]
Estimated useful life	10 years
Capitalized Software Development [Member]
Other Intangible Assets [Abstract]
Intangibles assets, Gross carrying amount	$ 10,285		10,188
Intangibles Assets, Accumulated amortization / Impairment Loss	(5,097)		(4,802)
Intangible assets, Net Carrying Amount	$ 5,188		$ 5,386
Estimated useful life	5 years