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CASH, CASH EQUIVALENTS AND MARKETABLE SECURITIES | 12 Months Ended
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Mar. 31, 2022
Cash and Cash Equivalents [Abstract] |
CASH, CASH EQUIVALENTS AND MARKETABLE SECURITIES | CASH, CASH EQUIVALENTS AND MARKETABLE SECURITIES Cash and cash equivalents mainly consisted of U.S government and municipal obligations, commercial paper, corporate bonds, certificate of deposits, money market instruments and cash maintained with various financial institutions at March 31, 2022 and 2021. Cash, Cash Equivalents and 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 |
The Company's restricted cash includes cash balances which are legally or contractually restricted. The Company's restricted cash is included within prepaid and other current assets and consists of amounts related to holdbacks associated with prior acquisitions. 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 |
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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- Definition The entire disclosure for cash and cash equivalent footnotes, which may include the types of deposits and money market instruments, applicable carrying amounts, restricted amounts and compensating balance arrangements. Cash and equivalents include: (1) currency on hand (2) demand deposits with banks or financial institutions (3) other kinds of accounts that have the general characteristics of demand deposits (4) short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Generally, only investments maturing within three months from the date of acquisition qualify. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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