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Schedule of Software (Details) - USD ($) $ in Thousands | Sep. 30, 2019 | Mar. 31, 2019
--- | --- | ---
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Finite-lived intangible assets, gross | $ 150,300 | $ 113,600
Less accumulated amortization | 93,560 | 85,008
Total finite-lived intangible assets, net | 56,740 | 28,592
Developed technology, gross (Software) |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Finite-lived intangible assets, gross | 51,525 | 51,525
Acquired developed technology |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Finite-lived intangible assets, gross | 78,500 | 54,000
Software Development |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Finite-lived intangible assets, gross | 130,025 | 105,525
Less accumulated amortization | 102,612 | 98,664
Total finite-lived intangible assets, net | $ 27,413 | $ 6,861

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