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CASH, CASH EQUIVALENTS AND MARKETABLE SECURITIES (Tables) | 12 Months Ended
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Mar. 31, 2022
Cash and Cash Equivalents [Abstract] |
Schedule of Cash and Cash Equivalents | The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the consolidated balance sheets that sum to the total of the same such amounts shown in the consolidated statements of cash flows (in thousands):
| March 31, 2022 |  | March 31, 2021 |  | March 31, 2020 |  | March 31, 2019
Cash and cash equivalents | $ | 636,161 |  |  | $ | 467,176 |  |  | $ | 338,489 |  |  | $ | 409,632 |
Restricted cash | — |  |  | — |  |  | 1,748 |  |  | 188 |
Total cash, cash equivalents and restricted cash | $ | 636,161 |  |  | $ | 467,176 |  |  | $ | 340,237 |  |  | $ | 409,820 |
Schedule of Restricted Cash | The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the consolidated balance sheets that sum to the total of the same such amounts shown in the consolidated statements of cash flows (in thousands):
| March 31, 2022 |  | March 31, 2021 |  | March 31, 2020 |  | March 31, 2019
Cash and cash equivalents | $ | 636,161 |  |  | $ | 467,176 |  |  | $ | 338,489 |  |  | $ | 409,632 |
Restricted cash | — |  |  | — |  |  | 1,748 |  |  | 188 |
Total cash, cash equivalents and restricted cash | $ | 636,161 |  |  | $ | 467,176 |  |  | $ | 340,237 |  |  | $ | 409,820 |
Schedule of Marketable Securities | The following is a summary of marketable securities held by NetScout at March 31, 2022 classified as short-term and long-term (in thousands):
| Amortized Cost |  | Unrealized Losses |  | Fair Value
Type of security: |  |  |  |  |
U.S. government and municipal obligations | $ | 40,895 |  |  | $ | (32) |  |  | $ | 40,863 |
Commercial paper | 23,353 |  |  | — |  |  | 23,353 |
Corporate bonds | 823 |  |  | (2) |  |  | 821 |
Certificate of deposits | 2,000 |  |  | — |  |  | 2,000 |
Total short-term marketable securities | 67,071 |  |  | (34) |  |  | 67,037 |
Total long-term marketable securities | — |  |  | — |  |  | — |
Total marketable securities | $ | 67,071 |  |  | $ | (34) |  |  | $ | 67,037 |
The following is a summary of marketable securities held by NetScout at March 31, 2021, classified as short-term and long-term (in thousands):
| Amortized Cost |  | Unrealized Gains |  | Fair Value
Type of security: |  |  |  |  |
U.S. government and municipal obligations | $ | 3,571 |  |  | $ | 7 |  |  | $ | 3,578 |
Commercial paper | 5,699 |  |  | — |  |  | 5,699 |
Total short-term marketable securities | 9,270 |  |  | 7 |  |  | 9,277 |
Total long-term marketable securities | — |  |  | — |  |  | — |
Total marketable securities | $ | 9,270 |  |  | $ | 7 |  |  | $ | 9,277 |
Schedule of Contractual Maturities of Marketable Securities | Contractual maturities of the Company's marketable securities held at March 31, 2022 and 2021 (in thousands) were as follows:
| March 31, 2022 |  | March 31, 2021
Available-for-sale securities: |  |  |
Due in 1 year or less | $ | 67,037 |  |  | $ | 9,277 |
Due after 1 year through 5 years | — |  |  | — |
| $ | 67,037 |  |  | $ | 9,277 |

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