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CONVERTIBLE SENIOR NOTES AND CAPPED CALLS (Tables) | 9 Months Ended
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Dec. 31, 2021
Debt Disclosure [Abstract] |
Schedule of Convertible Debt | The following table presents the net carrying amount of the liability component of the Notes:
|  | December 31, 2021 |  | March 31, 2021
Principal |  | $ | 500,000 |  |  | $ | 362,500 |
Unamortized debt discount |  | (54,818) |  |  | (53,323) |
Unamortized issuance costs |  | (4,194) |  |  | (742) |
Net carrying amount |  | $ | 440,988 |  |  | $ | 308,435 |
Schedule of Interest Income and Interest Expense Disclosure | The following table presents interest expense related to the Notes:
|  | Three Months Ended December 31, |  | Nine Months Ended December 31,
|  | 2021 |  | 2020 |  | 2021 |  | 2020
Contractual interest expense |  | $ | 486 |  |  | $ | 453 |  |  | $ | 1,359 |  |  | $ | 1,359 |
Amortization of debt discount |  | 4,785 |  |  | 4,198 |  |  | 13,204 |  |  | 12,399 |
Amortization of issuance costs |  | 140 |  |  | 59 |  |  | 185 |  |  | 174 |
Total interest expense |  | $ | 5,411 |  |  | $ | 4,710 |  |  | $ | 14,748 |  |  | $ | 13,932 |

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