Long-term debt consisted of the following (in thousands):


	September 30, 2022			September 30, 2021
3.00% Convertible Senior Notes due 2025, net of unamortized discount of $11,264 and $15,019, respectively, and deferred issuance costs of $2,832 and $3,776, respectively. Effective interest rate 6.29%.	$	160,904		$	156,205
Senior Credit Facilities, net of unamortized discount of $1,310 and $1,829, respectively, and deferred issuance costs of $158 and $221, respectively. Effective interest rate 5.37% and 2.86%, respectively.		109,470			115,138
Total debt	$	270,374		$	271,343
Less: current portion		(10,938	)		(6,250	)
Total long-term debt	$	259,436		$	265,093

The following table summarizes the maturities of our borrowing obligations as of September 30, 2022 (in thousands):


Fiscal Year	Convertible Senior Notes			Senior Facilities			Total
2023	$	—		$	10,938		$	10,938
2024		—			12,500			12,500
2025		175,000			87,500			262,500
Total before unamortized discount and issuance costs and current portion	$	175,000		$	110,938		$	285,938
Less: unamortized discount and issuance costs		(14,096	)		(1,468	)		(15,564	)
Less: current portion of long-term debt		—			(10,938	)		(10,938	)
Total long-term debt	$	160,904		$	98,532		$	259,436

On June 2, 2020, in an effort to refinance our debt structure, we issued $175.0 million in aggregate principal amount of 3.00% Convertible Senior Notes due 2025 (the “Notes”), including the initial purchasers’ exercise in full of their option to purchase an additional $25.0 million principal amount of the Notes, between us and U.S. Bank National Association, as trustee (the “Trustee”), in a private offering to qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933, as amended. The net proceeds from the issuance of the Notes were $169.8 million after deducting transaction costs. We used net proceeds from the

issuance of the Notes to repay a portion of our indebtedness under the Credit Agreement, dated October 1, 2019, by and among us, the lenders and issuing banks party thereto and Barclays Bank PLC, as administrative agent (the “Existing Facility”).

The Notes are senior, unsecured obligations and will accrue interest payable semiannually in arrears on June 1 and December 1 of each year, beginning on December 1, 2020, at a rate of 3.00% per year. The Notes will mature on June 1, 2025, unless earlier converted, redeemed, or repurchased. The Notes are convertible into cash, shares of our common stock or a combination of cash and shares of our common stock, at our election. As of September 30, 2022, the if-converted value of the Notes was $101.3 million less than its principal amount. As of September 30, 2021, the if-converted value of the Notes exceeded its principal amount by $274.4 million.

A holder of Notes may convert all or any portion of its Notes at its option at any time prior to the close of business on the business day immediately preceding March 1, 2025 only under the following circumstances: (1) during any fiscal quarter commencing after the fiscal quarter ending on September 30, 2020 (and only during such fiscal quarter), if the last reported sale price of our common stock for at least 20 trading days (whether or not consecutive) during a period of 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 ten consecutive trading day period (the “measurement period”) in which the “trading price” per $1,000 principal amount of 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 conversion rate on each such trading day; (3) if we call such Notes for redemption, at any time prior to the close of business on the business day immediately preceding the redemption date; or (4) upon the occurrence of specified corporate events. On or after March 1, 2025 until the close of business on the second scheduled trading day immediately preceding the maturity date, a holder may convert all or any portion of its Notes at any time, regardless of the foregoing.

The conversion rate will initially be 26.7271 shares of our common stock per $1,000 principal amount of Notes (equivalent to an initial conversion price of approximately $37.42 per share of our common stock). The conversion rate is subject to adjustment in some events but will not be adjusted for any accrued and unpaid interest. In addition, following certain corporate events that occur prior to the maturity date or if we deliver a notice of redemption, we will, in certain circumstances, increase the conversion rate for a holder who elects to convert its Notes in connection with such a corporate event or convert its Notes called for redemption in connection with such notice of redemption, as the case may be.

We may not redeem the Notes prior to June 5, 2023. We may redeem for cash all or any portion of the Notes, at our option, on a redemption date occurring on or after June 5, 2023 and on or before the 31st scheduled trading day immediately before the maturity date, 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), including the trading day immediately preceding the date on which we provide notice of redemption, during any 30 consecutive trading day 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 of the notes to be redeemed, plus accrued and unpaid interest to, but excluding, the redemption date. No sinking fund is provided for the Notes.

If we undergo a “fundamental change”, subject to certain conditions, holders may require us to repurchase for cash all or any portion of their Notes at a fundamental change repurchase price equal to 100% of the principal amount of the Notes to be repurchased, plus any accrued and unpaid interest to, but excluding, the fundamental change repurchase date.

The indenture governing the Notes contains customary terms and covenants, including that upon certain events of default occurring and continuing, either the Trustee or the holders of not less than 25% in aggregate principal amount of the Notes then outstanding may declare the entire principal amount of all the Notes plus accrued special interest, if any, to be immediately due and payable.

At issuance, we accounted for the Notes by allocating proceeds from the Notes into debt and equity components according to the accounting standards for convertible debt instruments that may be fully or partially settled in cash upon conversion. The initial carrying amount of the debt component, which approximates its fair value, was estimated by using an interest rate for nonconvertible debt, with terms similar to the Notes. The excess of the principal amount of the Notes over the fair value of the debt component was recorded as a debt discount and a corresponding increase in additional paid-in capital. The debt discount is accreted to the carrying value of the Notes over their expected term as interest expense using the interest method. Upon issuance of the Notes, we recorded $155.3 million as debt and $19.7 million as additional paid-in capital in stockholders’ equity. As of September 30, 2022 and 2021, the carrying amount of the equity component, net of taxes and transaction costs was $14.4 million.

We incurred transaction costs of $5.6 million relating to the issuance of the Notes. In accounting for these costs, we allocated the costs of the offering between debt and equity in proportion to the fair value of the debt and equity recognized. The transaction costs allocated to the debt component of approximately $5.0 million were recorded as a direct deduction from the face amount of the

Notes and are being amortized as interest expense over the term of the Notes using the interest method. The transaction costs allocated to the equity component of approximately $0.6 million were recorded as a decrease in additional paid-in capital.

The interest expense recognized related to the Notes for the fiscal years ended September 30, 2022, 2021 and 2020 was as follows (dollars in thousands):


	Year Ended September 30,
	2022		2021		2020
Contractual interest expense	$	5,246	$	5,246	$	1,753
Amortization of debt discount		3,755		3,527		1,131
Amortization of issuance costs		944		887		285
Total interest expense related to the Notes	$	9,945	$	9,660	$	3,169

The conditional conversion feature of the Notes was triggered during the fiscal year ended September 30, 2022, and the Notes were not convertible as of September 30, 2022, with no Notes being converted. Whether any of the Notes will be converted in future quarters will depend on the satisfaction of one or more of the conversion conditions in the future. If one or more holders elect to convert their Notes at a time when any such Notes are convertible, unless we elect to satisfy our conversion obligation by delivering solely shares of our common stock (other than paying cash in lieu of delivering any fractional shares), we would be required to settle a portion or all of our conversion obligation through the payment of cash, which could adversely affect our liquidity.

On June 12, 2020 (the “Financing Closing Date”), in connection with our effort to refinance our existing indebtedness, we entered into a Credit Agreement, by and among the Borrower, the lenders and issuing banks party thereto and Wells Fargo Bank, N.A., as administrative agent (the “Credit Agreement”), consisting of a four-year senior secured term loan facility in the aggregate principal amount of $125.0 million (the “Term Loan Facility”). The net proceeds from the issuance of the Term Loan Facility were $123.0 million, which together with proceeds from the Notes was intended to pay in full all indebtedness under the Existing Facility, and paid fees and expenses in connection with the Senior Credit Facilities. We also entered into a senior secured first-lien revolving credit facility in an aggregate principal amount of $50.0 million (the “Revolving Facility” and, together with the Term Loan Facility, the “Senior Credit Facilities”), which shall be drawn on in the event that our working capital and other cash needs are not supported by our operating cash flow. As of September 30, 2022 and 2021, there were no amounts outstanding under the Revolving Facility.

Our obligations under the Credit Agreement are jointly and severally guaranteed by certain of our existing and future direct and indirect wholly owned domestic subsidiaries, subject to certain exceptions customary for financings of this type. All obligations are secured by substantially all of our tangible and intangible personal property and material real property, including a perfected first-priority pledge of all (or, in the case of foreign subsidiaries or subsidiaries (“FSHCO”) that own no material assets other than equity interests in foreign subsidiaries that are “controlled foreign corporations” or other FSHCOs, 65%) of the equity securities of our subsidiaries held by any loan party, subject to certain customary exceptions and limitations.

On December 17, 2020 (the “Amendment No. 1 Effective Date”), we entered into Amendment No. 1 to the Credit Agreement (the “Amendment”). The Amendment extended the scheduled maturity date of the revolving credit and term facilities from June 12, 2024 to April 1, 2025.

The Amendment revised certain interest rates in the Credit Agreement. Following delivery of a compliance certificate for the first full fiscal quarter after the Amendment No. 1 Effective Date, the applicable margins for the revolving credit and term facilities is subject to a pricing grid based upon the net total leverage ratio as follows (i) if the net total leverage ratio is greater than 3.00 to 1.00, the applicable margin is LIBOR plus 3.00% or ABR plus 2.00%; (ii) if the net total leverage ratio is less than or equal to 3.00 to 1.00 but greater than 2.50 to 1.00, the applicable margin is LIBOR plus 2.75% or ABR plus 1.75%; (iii) if the net total leverage ratio is less than or equal to 2.50 to 1.00 but greater than 2.00 to 1.00, the applicable margin is LIBOR plus 2.50% or ABR plus 1.50%; (iv) if the net total leverage ratio is less than or equal to 2.00 to 1.00 but greater than 1.50 to 1.00, the applicable margin is LIBOR plus 2.25% or ABR plus 1.25%; and (v) if the net total leverage ratio is less than or equal to 1.50 to 1.00, the applicable margin is LIBOR plus 2.20% or ABR plus 1.00%. As a result of the Amendment, the applicable LIBOR floor was reduced from 0.50% to 0.00%.

From the Amendment No. 1 Effective Date until the fiscal quarter ended December 31, 2020, the interest rate was LIBOR plus 2.50%. For the three months ended March 31, 2021, the interest rate was LIBOR plus 2.25%. For the three months ended June 30, 2021, the interest rate was LIBOR plus 2.25%. For the three months ended September 30, 2021, the interest rate was LIBOR plus 2.25%. For the three and twelve months ended September 30, 2022, the interest rate was LIBOR plus 2.25%. Total interest expense relating to the Senior Credit Facilities for the fiscal year ended September 30, 2022, 2021 and 2020 was $4.3 million, $4.1 million, $1.5 million, respectively, reflecting the coupon and accretion of the discount.

In addition, the quarterly commitment fee required to be paid based on the unused portion of the Revolving Facility is subject to a pricing grid based upon the net total leverage ratio as follows (i) if the net total leverage ratio is greater than 3.00 to 1.00, the unused

The Amendment revised the amount by which we are obligated to make quarterly principal payments. Through the fiscal quarter ending December 31, 2022, we are obligated to make quarterly principal payments in an aggregate amount equal to 1.25% of the original principal amount of the Term Loan Facility. From the fiscal quarter ending March 31, 2023 and for each fiscal quarter thereafter, we are obligated to make quarterly principal payments in an aggregate amount equal to 2.50% of the original principal amount of the Term Loan Facility, with the balance payable at the maturity date thereof.

Borrowings under the Credit Agreement are prepayable at our option without premium or penalty. We may request, and each lender may agree in its sole discretion, to extend the maturity date of all or a portion of the Senior Credit Facilities subject to certain conditions customary for financings of this type. The Credit Agreement also contains certain mandatory prepayment provisions in the event that we incur certain types of indebtedness or receives net cash proceeds from certain non-ordinary course asset sales or other dispositions of property, in each case subject to terms and conditions customary for financings of this type.

The Credit Agreement contains certain affirmative and negative covenants customary for financings of this type that, among other things, limit our and our subsidiaries’ ability to incur additional indebtedness or liens, to dispose of assets, to make certain fundamental changes, to designate subsidiaries as unrestricted, to make certain investments, to prepay certain indebtedness and to pay dividends, or to make other distributions or redemptions/repurchases, in respect of our and our subsidiaries’ equity interests. In addition, the Credit Agreement contains financial covenants, each tested quarterly, (1) a net secured leveraged ratio of not greater than 3.25 to 1.00; (2) a net total leverage ratio of not greater than 4.25 to 1.00; and (3) minimum liquidity of at least $75 million. The Credit Agreement also contains events of default customary for financings of this type, including certain customary change of control events. As of September 30, 2022 and 2021, we were in compliance with all Credit Agreement covenants.

On November 22, 2022 (the "Amendment No. 2 Effective Date"), we entered into Amendment No. 2 to the Credit Agreement ("Amendment No. 2"). Amendment No. 2 modified certain financial covenants between the fiscal quarter ended March 31, 2023 to the fiscal quarter ended December 31, 2023 (the "covenant adjustment period"). During the covenant adjustment period, each tested quarterly, we are required to maintain (1) a net secured leveraged ratio of not greater than 4.25 to 1.00; (2) minimum liquidity of at least $125 million; and (3) aggregate capital expenditures less than $7.5 million. The net total leverage ratio will be waived during the covenant adjustment period. At the conclusion of the covenant adjustment period, the original financial covenants will resume.

Amendment No. 2 revised certain interest rates in the Credit Agreement. The applicable margins for the revolving credit and term facilities is subject to a pricing grid based upon the net total leverage ratio as follows (i) if the net total leverage ratio is greater than 3.00 to 1.00, the applicable margin is SOFR plus 3.00% or ABR plus 2.00%; (ii) if the net total leverage ratio is less than or equal to 3.00 to 1.00 but greater than 2.50 to 1.00, the applicable margin is SOFR plus 2.75% or ABR plus 1.75%; (iii) if the net total leverage ratio is less than or equal to 2.50 to 1.00 but greater than 2.00 to 1.00, the applicable margin is SOFR plus 2.50% or ABR plus 1.50%; (iv) if the net total leverage ratio is less than or equal to 2.00 to 1.00 but greater than 1.50 to 1.00, the applicable margin is SOFR plus 2.25% or ABR plus 1.25%; and (v) if the net total leverage ratio is less than or equal to 1.50 to 1.00, the applicable margin is SOFR plus 2.20% or ABR plus 1.00%. From the Amendment No. 2 Effective Date until delivery of the first compliance certificate after the covenant adjustment period, the applicable margin will be SOFR plus 3.00% or ABR plus 2.00%.