Debt

9 Months Ended

Jan. 31, 2023

Debt Disclosure [Abstract]

Debt

Note 3 – Debt

Convertible Senior Notes Due 2026

In March 2021, we issued $143.8 million in aggregate principal amount of 1.25% exchangeable senior notes due 2026 (“Convertible Notes”) in a private offering to qualified institutional buyers pursuant to Rule 144A under the Securities Act. The net proceeds we received from the issuance of Convertible Notes was $138.5 million, after deducting initial purchaser discounts and other debt issuance related expenses of $5.3 million.

The Convertible Notes are senior unsecured obligations and accrue interest at a rate of 1.25% per annum, payable semi-annually in arrears on March 15 and September 15 of each year. The Convertible Notes mature on March 15, 2026, unless earlier redeemed or repurchased by us or converted at the option of the holders. The Convertible Notes are convertible into cash, shares of our common stock or a combination of cash and shares of our common stock, at our election in the manner and subject to the terms and conditions provided in the indenture (the “Indenture”) governing the Convertible Notes.

The initial conversion rate for the Convertible Notes is approximately 47.1403 shares of our common stock per $1,000 principal amount, which represents an initial conversion price of approximately $21.21 per share of our common stock. The conversion rate is subject to adjustments upon the occurrence of certain events in accordance with the terms of the Indenture. In addition, following certain corporate events that occur prior to the maturity date, we will, in certain circumstances, increase the conversion rate for a holder who elects to convert their Convertible Notes in connection with such a fundamental change, as defined in the Indenture.

Holders of the Convertible Notes may convert their Convertible Notes at their option at any time prior to the close of business on the business day immediately preceding September 15, 2025, only under the following circumstances: (1) During any fiscal quarter commencing after the fiscal quarter ended July 31, 2021, if the last reported sale price of our common stock for at least 20 trading days (whether or not consecutive) during any 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding fiscal quarter is greater than or equal to 130% of the conversion price on each applicable trading day; (2) During the five business day period after any five consecutive trading day period (the “measurement period”) in which the trading price (as defined in the Indenture) per $1,000 principal amount of the Convertible Notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of our common stock and the exchange rate on each such trading day; (3) If we call any or all of the Convertible Notes for redemption, at any time prior to the close of business on the second scheduled trading day immediately preceding the redemption date; and (4) Upon the occurrence of specified corporate events as described in the Indenture.

On or after September 15, 2025 until the close of business on the second scheduled trading day immediately preceding the maturity date, holders at their option may convert their Convertible Notes at any time, regardless of the foregoing circumstances.

We may not redeem the Convertible Notes prior to March 20, 2024. On or after March 20, 2024, the Convertible Notes are redeemable for cash, whole or in part, at our option, if the last reported sale price of our 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 we provide notice of redemption at a redemption price equal to 100% of the principal amount to be redeemed, plus accrued and unpaid interest to, but excluding, the redemption date.

If we undergo a fundamental change (as defined in the Indenture), holders may require us to repurchase for cash all or any portion of their Convertible Notes at a fundamental change repurchase price equal to 100% of the principal amount of the Convertible Notes to be repurchased, plus accrued and unpaid interest to, but excluding the redemption date.

The Indenture contains customary terms and covenants, including that upon certain events of default occurring and continuing, the trustee or the holders of at least 25% in aggregate principal amount of the outstanding Convertible Notes may declare the entire principal of all the Convertible Notes plus accrued and unpaid interest to be immediately due and payable.

As of January 31, 2023, the conditions allowing holders of the Convertible Notes to convert had not been met and, therefore, the Convertible Notes are classified as a long-term liability on the unaudited condensed consolidated balance sheets at January 31, 2023 and April 30, 2022.

The net carrying amount of the Convertible Notes is as follows (in thousands):

	January 31, 2023			April 30, 2022
Principal	$	143,750		$	143,750
Unamortized issuance costs		(3,391	)		(4,173	)
Net carrying amount	$	140,359		$	139,577

As of January 31, 2023, the estimated fair value of the Convertible Notes was approximately $147.7 million. The fair value was determined based on the last actively traded price per $100 of the Convertible Notes for the period ended January 31, 2023 (Level 2).

The following table summarizes the interest expense recognized related to the Convertible Notes for the three and nine months ended January 31, 2023 and 2022 (in thousands):

	Three Months Ended January 31,				Nine Months Ended January 31,
	2023		2022		2023		2022
Contractual interest expense	$	328	$	449	$	963	$	1,347
Amortization of issuance costs		262		257		782		766
Total interest expense	$	590	$	706	$	1,745	$	2,113

Capped Call Transactions

In connection with the issuance of the Convertible Notes, we entered into privately negotiated capped call transactions (the “Capped Calls”) with certain financial institution counterparties (the “Option Counterparties”). We used $12.8 million of the net proceeds from the issuance of the Convertible Notes to pay the cost of the Capped Calls. The Capped Calls cover, subject to customary anti-dilution adjustments, the aggregate number of shares of our common stock that initially underlie the Convertible Notes, and are generally expected to reduce the potential dilution of our common stock upon any conversion of the Convertible Notes, as the case may be, with such reduction and/or offset subject to a cap, based on the cap price of the Capped Calls. The cap share price of the Capped Calls is approximately $28.02 per share, which represents a premium of 75% over the last reported sale price of our common stock on March 9, 2021 and is subject to certain adjustments under the terms of the Capped Calls. However, there would nevertheless be dilution upon conversion of the Convertible Notes to the extent that such market price exceeds the capped share price as measured under the terms of the Capped Calls.

We evaluated the Capped Calls under ASC 815-10 and determined that they should be accounted for as a separate transaction from the Convertible Notes and that the Capped Calls met the criteria for equity classification. Therefore, the cost of $12.8 million to purchase the Capped Calls was recorded as a reduction to additional paid-in capital in the consolidated balance sheet at April 30, 2021. The Capped Calls will not be subsequently remeasured as long as the conditions for equity classification continue to be met. As of January 31, 2023 and April 30, 2022, there were no conversions of our Convertible Notes, and therefore, there was no activity with respect to the Capped Calls. We believe the conditions for equity classification continue to be met as of January 31, 2023 and April 30, 2022.