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Investments | 9 Months Ended
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Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract] |
Investments | Investments The cost, gross unrealized gains and losses, and fair value of investments are as follows (in thousands):
| As of December 31, 2021
| Cost or Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  |  |  | Fair Value
Cash equivalents: |  |  |  |  |  |  |  |  |
Money market funds | $ | 22,981 |  |  | $ | — |  |  | $ | — |  |  |  |  | $ | 22,981 |
Total cash equivalents | 22,981 |  |  | — |  |  | — |  |  |  |  | 22,981 |
Marketable securities: |  |  |  |  |  |  |  |  |
Asset-backed securities | 3,569 |  |  | — |  |  | (4) |  |  |  |  | 3,565 |
Certificates of deposit | 137 |  |  | — |  |  | — |  |  |  |  | 137 |
Commercial paper | 2,656 |  |  | — |  |  | (3) |  |  |  |  | 2,653 |
Corporate notes and bonds | 102,529 |  |  | 1 |  |  | (343) |  |  |  |  | 102,187 |
Sovereign bonds | 8,775 |  |  | — |  |  | (84) |  |  |  |  | 8,691 |
U.S. government and agency securities | 568,193 |  |  | — |  |  | (4,927) |  |  |  |  | 563,266 |
Total marketable securities | 685,859 |  |  | 1 |  |  | (5,361) |  |  |  |  | 680,499 |
Total cash equivalents and marketable securities | $ | 708,840 |  |  | $ | 1 |  |  | $ | (5,361) |  |  |  |  | $ | 703,480 |
As of December 31, 2021, the contractual maturities of the Company’s available-for-sale debt securities were as follows (in thousands):
| Fair Value
Due within one year | $ | 93,412 |
Due in one year to three years | 610,068 |
Total | $ | 703,480 |
The cost, gross unrealized gains and losses, and fair value of investments were as follows (in thousands):
| As of March 31, 2021
| Cost or Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  |  |  | Fair Value
Cash equivalents: |  |  |  |  |  |  |  |  |
Commercial paper | $ | 2,290 |  |  | $ | — |  |  | $ | — |  |  |  |  | $ | 2,290 |
Corporate notes and bonds | 3,517 |  |  | — |  |  | (1) |  |  |  |  | 3,516 |
Money market funds | 9,838 |  |  | — |  |  | — |  |  |  |  | 9,838 |
Certificates of deposit | 1,301 |  |  | — |  |  | — |  |  |  |  | 1,301 |
Total cash equivalents | 16,946 |  |  | — |  |  | (1) |  |  |  |  | 16,945 |
Marketable securities: |  |  |  |  |  |  |  |  |
Asset-backed securities | 3,264 |  |  | — |  |  | (1) |  |  |  |  | 3,263 |
Certificates of deposit | 4,867 |  |  | 1 |  |  | — |  |  |  |  | 4,868 |
Commercial paper | 16,411 |  |  | 1 |  |  | — |  |  |  |  | 16,412 |
Corporate notes and bonds | 46,662 |  |  | 3 |  |  | (24) |  |  |  |  | 46,641 |
Sovereign bonds | 1,100 |  |  | — |  |  | (1) |  |  |  |  | 1,099 |
U.S. government and agency securities | 3,857 |  |  | 1 |  |  | — |  |  |  |  | 3,858 |
Total marketable securities | 76,161 |  |  | 6 |  |  | (26) |  |  |  |  | 76,141 |
Total cash equivalents and marketable securities | $ | 93,107 |  |  | $ | 6 |  |  | $ | (27) |  |  |  |  | $ | 93,086 |
As of March 31, 2021, the contractual maturities of the Company’s available-for-sale debt securities were as follows (in thousands):
| Fair Value
Due within one year | $ | 72,307 |
Due in one year to three years | 20,779 |
Total | $ | 93,086 |
As of December 31, 2021 and March 31, 2021, the Company has recognized accrued interest of $1.9 million and $0.3 million, respectively, which is included in prepaid expenses and other current assets in the condensed consolidated balance sheets. The unrealized losses associated with the Company’s debt securities were $5.4 million as of December 31, 2021. The Company did not recognize any credit losses related to the Company’s debt securities during the three and nine months ended December 31, 2021. The fair value related to the debt securities for which no credit losses were recognized was $678.8 million as of December 31, 2021. The unrealized losses associated with the Company’s debt securities were not material as of March 31, 2021. The Company did not recognize any credit losses related to the Company’s debt securities during the three and nine months ended December 31, 2020.

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- Definition The entire disclosure for cash, cash equivalents, investments in debt and equity instruments (including cost and equity investees and related income statement amounts), equity and cost method investments, investments in joint ventures and any other investment. + References No definition available. + Details
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