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ACQUISITIONS - Narrative (Details) - USD ($) |  |  | 2 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Jan. 18, 2022 | Jul. 17, 2019 | Mar. 31, 2022 | Mar. 31, 2022 | Mar. 31, 2021 | Mar. 31, 2020
Business Acquisition [Line Items] |  |  |  |  |  |
Business combination, value of stock issued |  |  |  | $ 80,856,000 | $ 0 | $ 0
Wavecell Pte. Ltd. |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business combination, consideration transferred |  | $ 117,100,000 |  |  |  |
Payments to acquire businesses, gross |  | 72,800,000 |  |  |  |
Business combination, value of stock issued |  | $ 44,300,000 |  |  |  |
Fuze |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business combination, consideration transferred | $ 213,800,000 |  |  |  |  |
Payments to acquire businesses, gross | $ 132,900,000 |  |  |  |  |
Percentage of interests acquired (in percent) | 100.00% |  |  |  |  |
Cash held back in consideration transferred | $ 1,300,000 |  |  |  |  |
Number of shares held back in consideration transferred (in shares) | 1,153,523 |  |  |  |  |
Earnings (loss) of acquiree since acquisition |  |  | $ (700,000) |  |  |
Goodwill, expected to be tax deductible | $ 0 |  |  |  |  |
Fair value of acquired receivables | 15,100,000 |  |  |  |  |
Gross contractual amount | 29,600,000 |  |  |  |  |
Uncollectable gross contractual amount | 14,500,000 |  |  |  |  |
Business combination, acquisition related costs |  |  |  | $ 9,700,000 |  |
Fuze | Common Stock |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business combination, value of stock issued | $ 80,900,000 |  |  |  |  |
Fuze | Service |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Revenue of acquiree since acquisition |  |  | 23,900,000 |  |  |
Fuze | Other revenue |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Revenue of acquiree since acquisition |  |  | $ 200,000 |  |  |

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- Definition This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
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