BUSINESS COMBINATIONS, Systems Management Planning (SMP) (Details) - USD ($) $ in Thousands |
12 Months Ended |
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Mar. 31, 2021 |
Dec. 31, 2020 |
Mar. 31, 2020 |
Mar. 31, 2019 |
| Allocation of Purchase Price Consideration to Assets Acquired and Liabilities Assumed [Abstract] |
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| Goodwill |
$ 126,645
|
|
$ 118,097
|
$ 110,807
|
| Systems Management Planning (SMP) [Member] |
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| Business Combination [Abstract] |
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| Cash portion of the acquisition |
29,000
|
|
|
|
| Receivable related to working capital adjustment |
$ 2,000
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|
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| Allocation of Purchase Price Consideration to Assets Acquired and Liabilities Assumed [Abstract] |
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| Accounts receivable |
|
$ 14,526
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|
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| Other assets |
|
3,344
|
|
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| Identified intangible assets |
|
14,280
|
|
|
| Accounts payable and other current liabilities |
|
(11,424)
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| Performance obligation |
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(2,020)
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| Total identifiable net assets |
|
18,706
|
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| Goodwill |
|
8,328
|
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| Total purchase consideration |
|
$ 27,034
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| Systems Management Planning (SMP) [Member] | Customer Relationships [Member] |
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| Allocation of Purchase Price Consideration to Assets Acquired and Liabilities Assumed [Abstract] |
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| Estimated useful lives |
7 years
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