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Debt | 3 Months Ended
--- | ---
Mar. 31, 2025
Debt Disclosure [Abstract] |
Debt | Debt Long-term debt consists of the following (in thousands):
| March 31, 2025 |  | December 31, 2024
4.625% Senior Notes | $ | 460,038 |  |  | $ | 460,038 |
1.75% Convertible Notes | 149,109 |  |  | 149,109 |
3.625% Convertible Notes | 263,147 |  |  | 263,147 |
Total Notes | 872,294 |  |  | 872,294 |
Credit Agreement | — |  |  | — |
Less: Unamortized discount | (5,333) |  |  | (5,676) |
Deferred issuance costs (1) | (2,132) |  |  | (2,336) |
Total long-term debt | $ | 864,829 |  |  | $ | 864,282 |
(1)Includes $0.7 million and $0.7 million of carrying amount of deferred issuance costs on the 4.625% Senior Notes as of March 31, 2025 and December 31, 2024, respectively, $0.8 million and $0.9 million of carrying amount of deferred issuance costs on the 1.75% Convertible Notes as of March 31, 2025 and December 31, 2024, respectively, and $0.7 million and $0.7 million of carrying amount of deferred issuance costs on the 3.625% Convertible Notes as of March 31, 2025 and December 31, 2024, respectively. As of March 31, 2025, the $149.1 million of principal of the 1.75% Convertible Notes will mature in 2026, $263.1 million of principal of the 3.625% Convertible Notes will mature in 2028, and $460.0 million of principal of the 4.625% Senior Notes will mature in 2030. 4.625% Senior Notes On October 7, 2020, the Company completed the issuance and sale of $750.0 million aggregate principal amount of its 4.625% senior notes due 2030 (the “4.625% Senior Notes”) in a private placement offering exempt from the registration requirements of the Securities Act of 1933, as amended. The Company received proceeds of $742.7 million, after deducting the initial purchasers’ discounts, commissions and offering expenses. The net proceeds were used to redeem all of its then outstanding 6.0% Senior Notes due in 2025 and, the remaining net proceeds were available for general corporate purposes which may include acquisitions and the repurchase or redemption of other outstanding indebtedness. These senior notes bear interest at a rate of 4.625% per annum, payable semi-annually in arrears on April 15 and October 15 of each year, commencing on April 15, 2021. The 4.625% Senior Notes mature on October 15, 2030, and are senior unsecured obligations of the Company which are guaranteed, jointly and severally, on an unsecured basis by certain of the Company’s existing and future domestic direct and indirect wholly-owned subsidiaries (collectively, the “Guarantors”). If the Company or any of its restricted subsidiaries acquires or creates a domestic restricted subsidiary, other than an Insignificant Subsidiary (as defined in the indenture pursuant to which the 4.625% Senior Notes were issued (the “Indenture”)), after the issue date, or any Insignificant Subsidiary ceases to fit within the definition of Insignificant Subsidiary, such restricted subsidiary is required to unconditionally guarantee, jointly and severally, on an unsecured basis, the Company’s obligations under the 4.625% Senior Notes. The Company may redeem some or all of the 4.625% Senior Notes at any time on or after October 15, 2025 at specified redemption prices plus accrued and unpaid interest, if any, up to, but excluding the redemption date. In addition, at any time prior to October 15, 2025, the Company may redeem some or all of the 4.625% Senior Notes at a price equal to 100% of the principal amount, plus accrued and unpaid interest, if any, to the redemption date, plus an applicable “make-whole” premium. The discount and deferred issuance costs are being amortized, at an effective interest rate of 4.7%, to interest expense through the maturity date. The Indenture contains covenants that restrict the Company’s ability to (i) pay dividends or make distributions on the Company’s common stock or repurchase the Company’s capital stock; (ii) make certain restricted payments; (iii) create liens or enter into sale and leaseback transactions; (iv) enter into transactions with affiliates; (v) merge or consolidate with another company; and (vi) transfer and sell assets. These covenants contain certain exceptions. Restricted payments are applicable only if the Company and subsidiaries designated as restricted subsidiaries have a net leverage ratio of greater than 3.5 to 1.0. In addition, if such net leverage ratio is in excess of 3.5 to 1.0, the restriction on restricted payments is subject to various exceptions, including the total aggregate amount not exceeding the greater of (A) $250 million and (B) 50.0% of EBITDA for the most recently ended four fiscal quarter period ended immediately prior to such date for which internal financial statements are available. The Company is in compliance with its debt covenants for the 4.625% Senior Notes as of March 31, 2025. Cumulatively as of March 31, 2025, the Company repurchased approximately $290 million in aggregate principal of its 4.625% Senior Notes. There were no repurchases of 4.625% Senior Notes during the three months ended March 31, 2025 and March 31, 2024. 1.75% Convertible Notes On November 15, 2019, the Company issued $550.0 million aggregate principal amount of 1.75% convertible senior notes due November 1, 2026 (the “1.75% Convertible Notes”). The Company received proceeds of $537.1 million in cash, net of purchasers’ discounts and commissions and other debt issuance costs. A portion of the net proceeds were used to pay off all amounts outstanding under the then-existing Credit Facility. The 1.75% Convertible Notes bear interest at a rate of 1.75% per annum, payable semiannually in arrears on May 1 and November 1 of each year, beginning on May 1, 2020. The 1.75% Convertible Notes will mature on November 1, 2026, unless earlier converted or repurchased. Under certain conditions set forth in the indenture, the 1.75% Convertible Notes bear additional interest of 0.50% per annum payable semiannually in arrears on May 1 and November 1 of each year, beginning on May 1, 2021. On July 16, 2024, the Company exchanged approximately $400.9 million in aggregate principal amount of its 1.75% Convertible Notes as part of the Exchange Transaction, as defined below. As of March 31, 2025, the remaining principal amount of the 1.75% Convertible Notes was $149.1 million. Holders may surrender their 1.75% Convertible Notes for conversion at any time prior to the close of business on the business day immediately preceding July 1, 2026 only under the following circumstances: (i) during any calendar quarter commencing after the calendar quarter ending on March 31, 2020 (and only during such calendar quarter), if the last reported sale price of the Company’s common stock for at least 20 trading days (whether or not consecutive) during the period of 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding the calendar quarter is greater than 130% of the applicable conversion price of the 1.75% Convertible Notes on each such applicable trading day; (ii) during the five business day period following any 10 consecutive trading day period in which the trading price per $1,000 principal amount of 1.75% Convertible Notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of the Company’s common stock and the applicable conversion rate on each such trading day; or (iii) upon the occurrence of specified corporate events. On or after July 1, 2026, and prior to the close of business on the business day immediately preceding the maturity date, holders may convert all or any portion of their notes at any time, regardless of the foregoing circumstances. The 1.75% Convertible Notes can be settled in cash, the Company’s common stock, or a combination of cash and the Company’s common stock, at $0.01 par value per share, at the Company’s election. The Company will settle conversions of the 1.75% Convertible Notes by paying or delivering, as the case may be, cash, shares of the Company’s common stock or a combination thereof at the Company’s election. Holders of the notes will have the right to require the Company to repurchase for cash all or any portion of their notes upon the occurrence of certain corporate events, subject to certain conditions. As of March 31, 2025 and December 31, 2024, the market trigger conditions did not meet the conversion requirements of the 1.75% Convertible Notes and, accordingly, the 1.75% Convertible Notes are classified as long-term debt on our Condensed Consolidated Balance Sheets. As of March 31, 2025, the conversion rate is 9.3783 shares of the Company’s common stock for each $1,000 principal amount of 1.75% Convertible Notes (or 1,398,391 shares), which represents a conversion price of approximately $106.63 per share of the Company’s common stock. The conversion rate is subject to adjustment for certain events as set forth in the indenture governing the 1.75% Convertible Notes, but will not be adjusted for accrued interest. In addition, upon the occurrence of a “Make-Whole Fundamental Change” (as defined in the 1.75% Convertible Note indenture), in certain circumstances, the Company will increase the conversion rate for a holder that elects to convert its 1.75% Convertible Notes in connection with such a corporate event. The Company may not redeem the 1.75% Convertible Notes prior to November 1, 2026, and no sinking fund is provided for the 1.75% Convertible Notes. The 1.75% Convertible Notes are the Company’s general senior unsecured obligations and rank: (i) senior in right of payment to any of the Company’s indebtedness that is expressly subordinated in right of payment to the 1.75% Convertible Notes; (ii) equal in right of payment to the Company’s existing and future indebtedness that is not so subordinated; (iii) effectively junior to any of the Company’s secured indebtedness to the extent of the value of the assets securing such indebtedness; and (iv) structurally junior to all existing and future indebtedness and other liabilities incurred by the Company’s subsidiaries. The following table provides the components of interest expense related to the 1.75% Convertible Notes (in thousands):
|  |  | Three months ended March 31,
|  |  |  |  | 2025 |  | 2024
Contractual interest expense |  |  |  |  | $ | 652 |  |  | $ | 2,406 |
Amortization of discount and deferred issuance costs |  |  |  |  | 123 |  |  | 470 |
Total interest expense related to 1.75% Convertible Notes |  |  |  |  | $ | 775 |  |  | $ | 2,876 |
3.625% Convertible Notes On July 16, 2024, the Company issued $263.1 million in aggregate principal amount of new 3.625% Convertible Notes due 2028 (the “3.625% Convertible Notes”) and paid an aggregate of approximately $135.0 million in cash in exchange for approximately $400.9 million in aggregate principal amount of the Company’s 1.75% Convertible Notes (collectively, the “Exchange Transaction”) pursuant to separate, privately negotiated exchange agreements with certain holders of the 1.75% Convertible Notes. The Exchange Transaction was accounted for as a debt modification, and accordingly, no gain or loss was recognized. In connection with the Exchange Transaction, the Company recognized an increase in the fair value of the conversion feature of the 3.625% Convertible Notes compared to the fair value of the conversion feature of the 1.75% Convertible Notes of $4.0 million, partially offset by an increase to deferred tax liabilities of $1.0 million, which is included in ‘Additional paid-in capital’ on the Condensed Consolidated Balance Sheets, and a corresponding reduction to the carrying value of the 3.625% Convertible Notes. The discount and deferred issuance costs are being amortized to interest expense through the maturity date, at an effective interest rate of 4.2%. The 3.625% Convertible Notes bear interest at a rate of 3.625% per annum on the principal amount thereof, payable semi-annually in arrears on September 1 and March 1 of each year, beginning on March 1, 2025, to the noteholders of record of the 3.625% Convertible Notes as of the close of business on the immediately preceding August 15 and February 15, respectively. The 3.625% Convertible Notes will mature on March 1, 2028, unless earlier converted or repurchased. The 3.625% Convertible Notes can be settled in cash, the Company’s common stock, or a combination of cash and the Company’s common stock, at $0.01 par value per share, at the Company’s election. Holders may surrender their 3.625% Convertible Notes for conversion at any time prior to the close of business on the business day immediately preceding December 1, 2027 only under the following circumstances: (i) during any calendar quarter commencing after the calendar quarter ending on September 30, 2024 (and only during such calendar quarter), if the last reported sale price of the Company’s common stock for at least 20 trading days (whether or not consecutive) during the period of 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding calendar quarter is greater than or equal to 130% of the applicable conversion price of the 3.625% Convertible Notes on each such applicable trading day; (ii) during the 5 business day period following any 10 consecutive trading day period in which the trading price per $1,000 principal amount of 3.625% Convertible Notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of the Company’s common stock and the applicable conversion rate on each such trading day; or (iii) upon the occurrence of specified corporate events. On or after December 1, 2027, and prior to the close of business on the business day immediately preceding the maturity date, holders may convert all or any portion of their notes at any time, regardless of the foregoing circumstances, at an initial conversion rate of 10 shares of the Company’s common stock per $1,000 principal amount of 3.625% Convertible Notes. The Company will settle conversions of the 3.625% Convertible Notes by paying or delivering, as the case may be, cash, shares of the Company’s common stock or a combination thereof at the Company’s election. Holders of the notes will have the right to require the Company to repurchase for cash all or any portion of their notes upon the occurrence of certain corporate events, subject to certain conditions. As of March 31, 2025 and December 31, 2024, the market trigger conditions did not meet the conversion requirements of the 3.625% Convertible Notes and, accordingly, the 3.625% Convertible Notes are classified as long-term debt on our Condensed Consolidated Balance Sheets. As of March 31, 2025, the conversion rate of the 3.625% Convertible Notes is 10 shares per $1,000 principal amount of the 3.625% Convertible Notes (or 2,631,470 shares), which represents an initial conversion price of $100 per share. The conversion rate is subject to adjustment upon the occurrence of certain specified events as set forth in the indenture governing the 3.625% Convertible Notes, but will not be adjusted for accrued and unpaid interest. In addition, upon the occurrence of a “Make-Whole Fundamental Change”, as defined in the 3.625% Convertible Note Indenture, the Company will in certain circumstances increase the conversion rate for a holder that elects to convert its 3.625% Convertible Notes in connection with such a corporate event. The Company may not redeem the 3.625% Convertible Notes prior to the maturity date, and no sinking fund is provided for the 3.625% Convertible Notes. The 3.625% Convertible Notes are the Company’s general senior unsecured obligations and rank: (i) senior in right of payment to any of the Company’s indebtedness that is expressly subordinated in right of payment to the 3.625% Convertible Notes; (ii) equal in right of payment to the Company’s existing and future indebtedness that is not so subordinated; (iii) effectively junior to any of the Company’s secured indebtedness to the extent of the value of the assets securing such indebtedness; and (iv) structurally junior to all existing and future indebtedness and other liabilities incurred by the Company’s subsidiaries. The following table provides the components of interest expense related to the 3.625% Convertible Notes (in thousands):
| Three months ended
| March 31, 2025
Coupon interest expense | $ | 2,385 |
Amortization of discount and debt issuance costs | 317 |
Total interest expense related to 3.625% Convertible Notes | $ | 2,702 |
Credit Agreement On April 7, 2021, the Company entered into a $100.0 million Credit Agreement (the “Credit Agreement”). Subject to certain conditions and approvals, the Company had the right, from time to time, to request increases in the commitments under the Credit Agreement in an aggregate amount up to $250.0 million, for a total aggregate commitment of up to $350.0 million. On June 18, 2024, the Company entered into a New Lender Joinder Agreement and Eighth Amendment (the “Joinder and Amendment”) to the Credit Agreement. The Joinder and Amendment provides for, among other things, (i) an increase in the Aggregate Revolving Loan Commitment by an aggregate principal amount of $250.0 million for a total of $350.0 million, (ii) an extension of the scheduled maturity date from April 7, 2026 to the earlier of (x) June 18, 2027 or (y) under certain limited circumstances, August 2, 2026, (iii) a “credit spread adjustment” for SOFR-based borrowings of 0.10% across all interest periods, (iv) the inclusion of limited conditionality borrowing mechanics with respect to certain borrowings and (v) certain other related amendments. At the Company’s option, amounts borrowed under the Credit Agreement bear interest at either (i) a base rate equal to the greater of (x) the Federal Funds Effective Rate (as defined in the Credit Agreement) in effect on such day plus 0.5% per annum, (y) the rate of interest per annum most recently announced by the Agent (as defined in the Credit Agreement) as its U.S. Dollar “Reference Rate” and (z) one month Term SOFR (as defined in the Credit Agreement) plus a credit spread adjustment plus 1.00% or (ii) a rate per annum equal to Term SOFR plus a credit spread adjustment, in each case, plus an applicable margin. The applicable margin relating to any base rate loan ranges from 0.50% to 1.25% and the applicable margin relating to any Term SOFR loan ranges from 1.50% to 2.25%, in each case, depending on the total leverage ratio of the Company. The Company is permitted to make voluntary prepayments of the Credit Facility at any time without payment of a premium or penalty. The Credit Agreement is secured by an associated collateral agreement that provides for a lien on the majority of the Company’s assets and the assets of the guarantors, in each case, subject to customary exceptions. The Credit Agreement contains financial maintenance covenants, including (i) a maximum total leverage ratio as of the last date of any fiscal quarter not to exceed 4.00:1.00 for the Company and its restricted subsidiaries and (ii) a minimum interest coverage ratio as of the last date of any fiscal quarter not less than 3.00:1.00 for the Company and its restricted subsidiaries. The Credit Agreement also contains restrictive covenants that limit, among other things, the Company’s and its restricted subsidiaries’ ability to incur additional indebtedness, create, incur or assume liens, consolidate, merge, liquidate or dissolve, pay dividends or make other distributions or other restricted payments, make or hold certain investments, enter into certain transactions with affiliates, sell assets other than on terms specified by the Credit Agreement, amend the terms of certain other indebtedness and organizational documents, and change their lines of business and fiscal years, in each case, subject to customary exceptions. The Credit Agreement also sets forth customary events of default, including, among other things, the failure to make timely payments under the Credit Facility, the failure to satisfy certain covenants, cross-default and cross-acceleration to other material debt for borrowed money, the occurrence of a change of control, and specified events of bankruptcy and insolvency. The Company is in compliance with its debt covenants for the Credit Agreement as of March 31, 2025. As of each March 31, 2025 and December 31, 2024, availability under the Credit Agreement was $348.9 million, net of letters of credit.

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- Definition The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481544/470-10-50-6 Reference 2: 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