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CONVERTIBLE SENIOR NOTES AND CAPPED CALL | 12 Months Ended
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Mar. 31, 2022
Debt Disclosure [Abstract] |
CONVERTIBLE SENIOR NOTES AND CAPPED CALL | CONVERTIBLE SENIOR NOTES AND CAPPED CALL Convertible Senior Notes In February 2019, the Company issued $287.5 million aggregate principal amount of 0.50% convertible senior notes (the "Initial Notes") due 2024 in a private placement, including the exercise in full of the initial purchasers' option to purchase additional notes. The total net proceeds from the debt offering, after deducting initial purchase discounts, debt issuance costs, and costs of the capped call transactions described below, were approximately $245.8 million. In November 2019, the Company issued an additional $75.0 million aggregate principal amount of 0.50% convertible senior notes (the "First Additional Notes") due 2024 in a registered offering under the same indenture as the Initial Notes. The total net proceeds from the First Additional Notes, after deducting initial purchase discounts, debt issuance costs and costs of the capped call transactions described below, were approximately $64.6 million. In December 2021, the Company issued an additional $137.5 million aggregate principal amount of its currently outstanding 0.50% convertible senior notes (the "Second Additional Notes", and together with the Initial Notes and the First Additional Notes, the "Notes") due 2024 in a private placement under the same indenture as the Initial Notes and the First Additional Notes. The total net proceeds from the Second Additional Notes, after deducting initial purchase discounts and debt issuance costs, were approximately $134.3 million. The Company did not enter into any capped calls in connection with this transaction. Both the First Additional Notes and Second Additional Notes constitute a further issuance of, and form a single series with, the Initial Notes. Immediately after giving effect to the issuance of the Second Additional Notes, the Company had $500.0 million aggregate principal amount of convertible senior notes. The Notes are senior unsecured obligations of the Company and interest is payable semiannually in arrears on February 1 and August 1 of each year, beginning on August 1, 2019. The Notes will mature on February 1, 2024, unless earlier repurchased, redeemed, or converted. Each $1,000 principal amount of the Notes is initially convertible into 38.9484 shares of the Company’s common stock, par value $0.001, which is equivalent to an initial conversion price of approximately $25.68 per share. The conversion rate is subject to adjustment upon the occurrence of certain specified events but will not be adjusted for any accrued and unpaid interest. In addition, upon the occurrence of certain corporate events that occur prior to the maturity date or following the Company's issuance of a notice of redemption, in each case as described in the Indenture, the Company will, in certain circumstances, increase the conversion rate for a holder that elects to convert its Notes in connection with such a corporate event or during the relevant redemption period. Prior to the close of business on the business day immediately preceding October 1, 2023, the Notes will be convertible only under the following circumstances: 1.At any time during any calendar quarter commencing after the fiscal quarter ending on June 30, 2019 (and only during such calendar quarter), if the last reported sale price of the common stock for at least 20 trading days (whether or not consecutive) during the period of 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter is greater than or equal to 130% of the conversion price on each applicable trading day; 2.During the five business day period immediately after any ten consecutive trading day period (the measurement period), if the trading price per $1,000 principal amount of the Notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of the common stock on each such trading day and the conversion rate on each such trading day; 3.If the Company calls any or all of the Notes for redemption, at any time prior to the close of business on the scheduled trading day immediately preceding the redemption date; or 4.Upon the occurrence of specified corporate events (as set forth in the indenture governing the Notes). On or after October 1, 2023, until the close of business on the second scheduled trading day immediately preceding the maturity date, holders may convert all or any portion of their Notes, regardless of the foregoing circumstances. Upon conversion, the Company will satisfy its conversion obligation by paying or delivering, as the case may be, cash, shares of common stock, or a combination of cash and shares of common stock, at the Company's election. The Company’s current intent is to settle the principal amount of the Notes in cash upon conversion. During the year ended March 31, 2022, the conditions allowing holders of the Notes to convert were not met. The Company may not redeem the Notes prior to February 4, 2022. On or after February 4, 2022, the Company may redeem for cash all or part of the Notes at the redemption price equal to 100% of the principal amount thereof, plus accrued and unpaid interest, if the last reported sale price of the common stock has been at least 130% of the conversion price then in effect for at least 20 trading days (whether or not consecutive) during any 30 consecutive trading day period (including the last trading day of such period) ending on, and including, the trading day immediately preceding the date on which the Company provides a redemption notice. If a fundamental change (as defined in the indenture governing the notes) occurs at any time, holders of Notes may require the Company to repurchase for cash all or any portion of their Notes at a repurchase price equal to 100% of the principal amount of the Notes to be repurchased, plus accrued and unpaid interest to, but excluding, the fundamental change repurchase date. The Notes are senior unsecured obligations and will rank senior in right of payment to any of the Company’s indebtedness that is expressly subordinated in right of payment to the Notes; equal in right of payment with the Company’s existing and future liabilities that are not so subordinated; effectively junior in right of payment to any of the Company’s secured indebtedness to the extent of the value of the assets securing such indebtedness; and structurally junior to all indebtedness and other liabilities (including trade payables) of current or future subsidiaries of the Company. Upon issuance, the Company separated the Notes into liability and equity components. The carrying amount of the liability component was calculated by measuring the fair value of similar debt instruments, which do not have an associated convertible feature. The carrying amounts of the equity components representing the conversion option for the Initial Notes, First Additional Notes, and Second Additional Notes were $64.9 million, $12.4 million, and $15.6 million respectively, and were determined by deducting the fair value of the liability component from the par value of the Notes. The equity components are not remeasured as long as they continue to meet the condition for equity classification. The excess of the principal amounts of the liability components over the carrying amounts (“debt discount”) in connection with the Initial Notes and the First Additional Notes and Second Additional Notes are amortized to interest expense at the effective interest rates of 6.5% and 5.3%, respectively, over the terms of the Notes. The Company allocated the total issuance cost incurred to the liability and equity components of the Notes based on their relative value. Issuance costs attributable to the liability component were recorded as reduction to the liability portion of the Notes and are being amortized to interest expense over the terms of the Notes. Issuance costs attributable to the equity component were netted with the equity component in stockholders’ equity. The following table presents the net carrying amount and fair value of the liability component of the Notes:
|  | March 31, 2022 |  | March 31, 2021
Principal |  | $ | 500,000 |  |  | $ | 362,500 |
Unamortized debt discount |  | (48,657) |  |  | (53,323) |
Unamortized issuance costs |  | (3,891) |  |  | (742) |
Net carrying amount |  | $ | 447,452 |  |  | $ | 308,435 |
Unamortized debt discount and issuance costs will be amortized over the remaining life of the Notes, which is approximately 22 months. Interest expense recognized related to the Notes was as follows:
|  | For the years ended March 31,
|  | 2022 |  | 2021
Contractual interest expense |  | $ | 2,271 |  |  | $ | 1,813 |
Amortization of debt discount |  | 20,105 |  |  | 16,664 |
Amortization of issuance costs |  | 299 |  |  | 234 |
Total interest expense |  | $ | 22,675 |  |  | $ | 18,711 |
Capped Call In connection with the pricing of the Initial and First Additional Notes, the Company entered into privately negotiated capped call transactions (the "Capped Calls") with certain counterparties. The Capped Calls each have an initial strike price of approximately $25.68 per share, subject to certain adjustments, which correspond to the initial conversion price of the Initial and First Additional Notes. The Capped Calls have initial cap prices of $39.50 per share, subject to certain adjustments. The Capped Calls are expected to partially offset the potential dilution to the Company’s Common Stock upon any conversion of the Initial and First Additional Notes, with such offset subject to a cap based on the cap price. The Capped Calls cover, subject to anti-dilution adjustments, approximately 14.1 million shares of the Company’s Common Stock. The Capped Calls are subject to adjustment upon the occurrence of specified extraordinary events affecting the Company, including merger events, tender offers, and announcement events. In addition, the Capped Calls are subject to certain specified additional disruption events that may give rise to a termination of the Capped Calls, including nationalization, insolvency or delisting, changes in law, failures to deliver, insolvency filings, and hedging disruptions. For accounting purposes, the Capped Calls are separate transactions, and not part of the terms of the Initial and First Additional Notes. As these transactions meet certain accounting criteria, the Capped Calls are recorded in stockholders' equity and are not accounted for as derivatives. The costs of $33.7 million incurred to purchase the Capped Calls in connection with the Initial Notes and $9.3 million in connection with the First Additional Notes were recorded as a reduction to additional paid-in capital and will not be remeasured. The net impact to the Company’s stockholders’ equity, included in additional paid-in capital, relating to the issuance of the Initial and First Additional Notes and Second Additional Notes was as follows:
|  | Second Additional Notes |  | First Additional Notes |  | Initial Notes
Conversion option |  | $ | 15,960 |  |  | $ | 12,810 |  |  | $ | 66,700 |
Payments for capped call transactions |  | $ | — |  |  | $ | (9,288) |  |  | $ | (33,724) |
Issuance costs |  | $ | (361) |  |  | $ | (436) |  |  | $ | (1,848) |
Total |  | $ | 15,599 |  |  | $ | 3,086 |  |  | $ | 31,128 |

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