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INTANGIBLE ASSETS AND GOODWILL - Carrying Value of Intangible Assets (Details) - USD ($) $ in Thousands | Jun. 30, 2019 | Mar. 31, 2019
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Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 26,019 | $ 37,277
Accumulated Amortization | (15,894) | (25,597)
Net Carrying Amount | 10,125 | 11,680
Technology |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 19,894 | 25,702
Accumulated Amortization | (10,911) | (15,409)
Net Carrying Amount | 8,983 | 10,293
Customer relationships |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 6,125 | 9,467
Accumulated Amortization | (4,983) | (8,080)
Net Carrying Amount | $ 1,142 | $ 1,387

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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