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DEBT | 12 Months Ended
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Dec. 31, 2023
Debt Disclosure [Abstract] |
DEBT | DEBT Convertible Senior Notes 2025 Notes On July 24, 2020, the Company issued $575.0 million aggregate principal amount of its 0.50% Convertible Senior Notes due July 15, 2025 (the “2025 Notes”) in a private placement. The issuance included $75.0 million aggregate principal amount of 2025 Notes under a 13-day purchase option which was exercised in full. The 2025 Notes bear interest at a rate of 0.50% per year, payable semi-annually on January 15 and July 15 of each year, beginning on January 15, 2021. The 2025 Notes will mature on July 15, 2025, unless earlier repurchased, redeemed or converted. On March 8, 2023, the Company repurchased approximately $190.6 million in principal amount of its 2025 Notes, through individual privately-negotiated transactions with certain holders of the 2025 Notes, for $156.3 million in cash plus accrued and unpaid interest of approximately $0.1 million. On December 7, 2023, the Company repurchased approximately $100.2 million in principal amount of its 2025 Notes, through individual privately-negotiated transactions with certain holders of the 2025 Notes, for $81.2 million in cash plus accrued and unpaid interest of approximately $0.2 million. During the year ended December 31, 2023, the Company recognized a gain on the extinguishment of debt of $53.3 million, a loss on the write-off of unamortized debt issuance costs of $3.2 million and incurred debt repayment costs of $1.6 million, all of which are included in interest income/expense, net in the consolidated statements of operations and comprehensive income. The initial conversion rate of the 2025 Notes is 2.1683 shares of the Company's common stock per $1,000 principal amount of 2025 Notes (which is equivalent to an initial conversion price of approximately $461.19 per share). The conversion rate is subject to adjustment upon the occurrence of certain specified events but will not be adjusted for accrued and unpaid interest. In addition, upon the occurrence of a make-whole fundamental change prior to the maturity of the 2025 Notes or if the Company issues a notice of redemption for the 2025 Notes, the Company will, in certain circumstances, increase the conversion rate by a specified number of additional shares for a holder that elects to convert the 2025 Notes in connection with such make-whole fundamental change or to convert its 2025 Notes called for redemption, as the case may be. Upon conversion, the 2025 Notes will settle for cash, shares of the Company’s stock, or a combination thereof, at the Company’s option. It is the intent of the Company to settle the principal amount of the 2025 Notes in cash and any conversion premium in shares of its common stock. The 2025 Notes are the Company’s senior unsecured obligations and rank senior in right of payment to any of the Company’s indebtedness that is expressly subordinated in right of payment to the 2025 Notes; equal in right of payment to any of the Company’s unsecured indebtedness that is not so subordinated; effectively junior in right of payment to any of the Company’s secured indebtedness, including borrowings under the senior secured credit facility, described below, 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 the Company’s subsidiaries. Prior to the close of business on the business day immediately preceding March 13, 2025, the 2025 Notes will be convertible at the option of the holders thereof only under the following circumstances: •during any calendar quarter commencing after the calendar quarter ending on September 30, 2020 (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 30 consecutive trading day period ending on, and including 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; •during the five business day period after any five consecutive trading day period in which, for each trading day of that period, the trading price (as defined in the 2025 Notes) per $1,000 principal amount of 2025 Notes for such trading day was less than 98% of the product of the last reported sale price of the common stock and the conversion rate on each such trading day; •if the Company calls such 2025 Notes for redemption, at any time prior to the close of business on the scheduled trading day immediately preceding the redemption date, but only with respect to the notes called for redemption; or •upon the occurrence of specified corporate events including but not limited to a fundamental change. Holders of the 2025 Notes were not entitled to convert the 2025 Notes during the calendar quarter ended December 31, 2023 as 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 September 30, 2023, was not greater than or equal to 130% of the conversion price of the 2025 Notes on each applicable trading day. Holders of the 2025 Notes are not entitled to convert the 2025 Notes during the calendar quarter ended March 31, 2024 as 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 December 31, 2023, was not greater than or equal to 130% of the conversion price of the 2025 Notes on each applicable trading day. On or after March 13, 2025, until the close of business on the second scheduled trading day immediately preceding the maturity date of the 2025 Notes, holders of the 2025 Notes may convert all or a portion of their 2025 Notes regardless of the foregoing conditions. The Company could not redeem the remaining 2025 Notes prior to July 20, 2023. On or after July 20, 2023 and before the 41st scheduled trading day immediately before the maturity date, the Company may redeem for cash all or a portion of the 2025 Notes, at its option, if the last reported sale price of the common stock for at least 20 trading days (whether or not consecutive) during the 30 consecutive trading day period (and including the last trading day of such period) ending on, and including the last trading day immediately preceding the date of notice of redemption is greater than or equal to 130% of the conversion price on each applicable trading day. The redemption price will be equal to 100% of the principal amount of the 2025 Notes to be redeemed, plus any accrued and unpaid interest to, but excluding, the redemption date. No sinking fund is provided for the 2025 Notes. Upon the occurrence of a fundamental change prior to the maturity date of the 2025 Notes, holders of the 2025 Notes may require the Company to repurchase all or a portion of the 2025 Notes for cash at a price equal to 100% of the principal amount of the 2025 Notes to be repurchased, plus any accrued and unpaid interest to, but excluding, the fundamental change repurchase date. If the market price per share of the common stock, as measured under the terms of the 2025 Notes, exceeds the conversion price of the 2025 Notes, the 2025 Notes could have a dilutive effect, unless the Company elects, subject to certain conditions, to settle the principal amount of the 2025 Notes and any conversion premium in cash. Accounting for the Notes After Adoption of ASU 2020-06 The Company adopted ASU 2020-06 on January 1, 2022 as further described in Note 2—Significant Accounting Policies in the notes to the consolidated financial statements included elsewhere in this report. Following the adoption of ASU 2020-06, the 2025 Notes are recorded as a single unit within liabilities on the consolidated balance sheets as the conversion features within the 2025 Notes are not derivatives that require bifurcation and the 2025 Notes do not involve a substantial premium. Debt issuance costs to issue the 2025 Notes were recorded as a direct deduction from the related liability and amortized to interest expense over the term of Notes. The new guidance also requires the if-converted method to be applied for all convertible instruments when calculating diluted earnings per share. See Note 2—Significant Accounting Policies in the notes to the consolidated financial statements included elsewhere in this report for additional information. Accounting for the Notes Before Adoption of ASU 2020-06 The initial measurement of convertible debt instruments that may be settled in cash was separated into a debt and an equity component whereby the debt component was based on the fair value of a similar instrument that does not contain an equity conversion option. The separate components of debt and equity of the Company’s 2025 Notes were determined using an interest rate of 5.30%, which reflects the nonconvertible debt borrowing rate of the Company at the date of issuance. As a result, the initial components of debt and equity were $455.6 million and $119.4 million, respectively. Financing costs related to the issuance of the 2025 Notes were approximately $15.1 million, of which $12.0 million were allocated to the liability component and were being amortized to interest expense over the term of the debt and $3.1 million were allocated to the equity component. During 2023, the Company recorded interest expense on the 2025 Notes of $4.3 million which consisted of $2.1 million associated with the 0.50% coupon rate and $2.2 million associated with the amortization of the debt issuance costs. During 2022, the Company recorded interest expense on the 2025 Notes of $5.9 million which consisted of $2.9 million associated with the 0.50% coupon rate and $3.0 million associated with the amortization of the debt issuance costs. During 2021, the Company recorded interest expense on the 2025 Notes of $27.2 million which consisted of $2.9 million associated with the 0.50% coupon rate, $22.1 million associated with the accretion of the debt discount, and $2.2 million associated with the amortization of the debt issuance costs. The debt discount was being amortized over the term of the debt prior to the adoption of ASU 2020-06. As of December 31, 2023, the fair value of the 2025 Notes is estimated to be approximately $235.2 million using the Level 1 observable input of the last quoted market price on December 31, 2023. A summary of the gross carrying amount, debt issuance costs, and net carrying value of the liability component of the 2025 Notes, all of which is recorded as a non-current liability in the December 31, 2023 consolidated balance sheet, are as follows (in thousands):
| December 31, 2023 | December 31, 2022 |  |
Gross carrying amount | $ | 284,188 |  | $ | 575,000 |  |  |
Debt issuance costs | 2,321 |  | 7,734 |  |  |
Net carrying amount | $ | 281,867 |  | $ | 567,266 |  |  |
2022 Notes On May 31, 2017, the Company issued $300.0 million aggregate principal amount of its 0.625% Convertible Senior Notes due June 1, 2022 (the “2022 Notes”) in a private placement. The Company settled the outstanding balance of the 2022 Notes of $169.7 million in cash on June 1, 2022. The initial conversion rate of the 2022 Notes was 4.8163 shares of the Company's common stock per $1,000 principal amount of 2022 Notes (which is equivalent to an initial conversion price of approximately $207.63 per share). Accounting for the Notes After Adoption of ASU 2020-06 The Company adopted ASU 2020-06 on January 1, 2022 as further described in Note 2—Significant Accounting Policies in the notes to the consolidated financial statements included elsewhere in this report. Following the adoption of ASU 2020-06, the 2022 Notes are recorded as a single unit within liabilities on the consolidated balance sheets as the conversion features within the 2022 Notes are not derivatives that require bifurcation and the 2022 Notes do not involve a substantial premium. Debt issuance costs to issue the 2022 Notes were recorded as a direct deduction from the related liability and amortized to interest expense over the term of Notes. The new guidance also requires the if-converted method to be applied for all convertible instruments when calculating diluted earnings per share. See Note 2—Significant Accounting Policies in the notes to the consolidated financial statements included elsewhere in this report for additional information. Accounting for the Notes Before Adoption of ASU 2020-06 The separate components of debt and equity of the Company’s 2022 Notes were determined using an interest rate of 5.36%, which reflects the nonconvertible debt borrowing rate of the Company at the date of issuance. As a result, the initial components of debt and equity were $238.4 million and $61.6 million, respectively. Financing costs related to the issuance of the 2022 Notes were approximately $9.3 million, of which $7.4 million were allocated to the liability component and were being amortized to interest expense over the term of the debt and $1.9 million were allocated to the equity component. On July 24, 2020, the Company used approximately $234.0 million of the net proceeds from the issuance of the 2025 Notes to repurchase approximately $130.3 million principal amount of the 2022 Notes, including the payment of accrued and unpaid interest of approximately $0.1 million, through separate transactions with certain holders of the 2022 Notes. Of the consideration paid, $126.0 million was allocated to the extinguishment of the liability component of the notes, while the remaining $107.9 million was allocated to the reacquisition of the equity component and recorded as a reduction to additional paid-in capital in the consolidated statement of shareholders’ equity. The Company recognized a loss on debt extinguishment of $7.8 million in the third quarter of 2020. During 2022, the Company recorded interest expense on the 2022 Notes of $0.8 million which consisted of $0.4 million associated with the 0.625% coupon rate and $0.4 million associated with the amortization of the debt issuance costs. During 2021, the Company recorded interest expense on the 2022 Notes of $9.5 million which consisted of $1.1 million associated with the 0.625% coupon rate, $7.5 million associated with the accretion of the debt discount, and $0.9 million associated with the amortization of the debt issuance costs. Convertible Note Hedge and Warrant Transactions 2020 Hedge and Warrants On July 24, 2020, in connection with the issuance of the 2025 Notes, the Company entered into Convertible Note Hedge (the “2020 Hedge”) and warrant transactions with respect to the Company’s common stock. The Company used approximately $63.0 million of the net proceeds from the 2025 Notes to pay for the cost of the 2020 Hedge, after such cost was partially offset by the proceeds from the warrant transactions. On July 24, 2020, the Company paid $124.2 million to the counterparties for the 2020 Hedge transactions. The 2020 Hedge transactions cover 1.2 million shares of the Company’s common stock, the same number of shares initially underlying the 2025 Notes, and are exercisable upon any conversion of the 2025 Notes. The 2020 Hedge transactions are expected generally to reduce the potential dilution to the Company's common stock upon conversion of the 2025 Notes and/or offset any cash payments the Company is required to make in excess of the principal amount of the converted 2025 Notes, as the case may be, in the event that the market price per share of common stock, as measured under the terms of the 2020 Hedge transactions, is greater than the strike price of the 2020 Hedge transactions, which initially corresponds to the initial conversion price of the 2025 Notes, or approximately $461.19 per share of common stock. The 2020 Hedge transactions will expire upon the maturity of the Notes. On July 24, 2020, the Company sold to the counterparties warrants (the “2020 Warrants”) to acquire 1.2 million shares of the Company's common stock at an initial strike price of $709.52 per share, which represents a premium of 100% over the last reported sale price of the common stock of $354.76 on July 21, 2020. On July 24, 2020, the Company received aggregate proceeds of approximately $61.2 million from the sale of the 2020 Warrants. If the market price per share of the common stock, as measured under the terms of the 2020 Warrants, exceeds the strike price of the 2020 Warrants, the 2020 Warrants could have a dilutive effect, unless the Company elects, subject to certain conditions, to settle the 2020 Warrants in cash. In connection with the December 7, 2023 and the March 8, 2023 repurchases of the 2025 Notes noted above, the Company entered into agreements with the counterparties for the 2020 Hedge and 2020 Warrants transactions to terminate a portion of these call spread transactions effective December 7, 2023 and March 8, 2023, respectively, in notional amounts corresponding to the principal amount of the 2025 Notes repurchased. Subsequent to such terminations, the outstanding portion of the 2020 Hedge covers 0.6 million shares of the Company's common stock and the 2020 Warrants to acquire 0.6 million shares of the Company's common stock remain outstanding. The 2020 Hedge and 2020 Warrants transactions are indexed to, and potentially settled in, the Company's common stock and the net cost of $63.0 million has been recorded as a reduction to additional paid-in capital in the consolidated statement of shareholders’ equity. 2017 Hedge and Warrants On May 31, 2017, in connection with the issuance of the 2022 Notes, the Company entered into Convertible Note Hedge (the “2017 Hedge”) and warrant transactions with respect to the Company’s common stock. The Company used approximately $18.1 million of the net proceeds from the 2022 Notes to pay for the cost of the 2017 Hedge, after such cost was partially offset by the proceeds from the warrant transactions. On May 31, 2017, the Company paid $61.5 million to the counterparties for the 2017 Hedge transactions. The 2017 Hedge transactions initially covered 1.4 million shares of the Company’s common stock, the same number of shares initially underlying the 2022 Notes, and were exercisable upon any conversion of the 2022 Notes. The 2017 Hedge transactions expired on June 1, 2022 upon the maturity of the Notes. On May 31, 2017, the Company sold to the counterparties, warrants (the “2017 Warrants”) to acquire 1.4 million shares of the Company's common stock at an initial strike price of $266.39 per share, which represented a premium of 70% over the last reported sale price of the common stock of $156.70 on May 24, 2017 receiving proceeds of approximately $43.4 million. The warrants expired on December 12, 2022. Credit Facility On September 15, 2021, the Company entered into a credit agreement (the “Credit Agreement”), consisting of a $200.0 million revolving credit facility (the “Revolving Facility”), which matures on September 15, 2026, and a $250.0 million delayed draw term loan facility (the “Term Loan Facility” and together with the Revolving Facility, the “Credit Facility”), which matures on September 15, 2028. The proceeds of the Revolving Facility can be used to finance working capital, for general corporate purposes and any other purpose not prohibited by the Credit Agreement. On May 31, 2022 the Company received proceeds of $250.0 million from the Term Loan Facility and, on June 1, 2022, used $170.2 million of the proceeds to settle the Company's 2022 Notes, including interest. The remaining proceeds of $79.8 million may be used for general corporate purposes not prohibited by the Credit Agreement. The Credit Facility replaces the Company's $500.0 million five-year senior secured revolving credit facility (the “Amended Revolving Credit Facility”) which was entered into on December 10, 2019. As of December 31, 2023, the Company had $246.9 million borrowings outstanding under the Term Loan Facility bearing interest at the SOFR option rate of 9.21% and had no borrowings under the Revolving Facility. As of December 31, 2022, the Company had $248.8 million borrowings outstanding under the Term Loan Facility and had no borrowings under the Revolving Facility. As of December 31, 2023, borrowings of $3.1 million under the Term Loan Facility are recorded as current portion of long-term debt on the consolidated balance sheet. The full amount of the Revolving Facility will be available on a same-day basis, with respect to base rate loans and upon advance notice with respect to SOFR rate loans, subject to customary terms and conditions. Under certain conditions, the Company will be permitted to add one or more term loans and/or increase revolving or term loan commitments under the Credit Facility by an amount set at the greater of $116.0 million and 100% of consolidated EBITDA (subject to adjustments for certain prepayments), plus an unlimited amount provided that the first lien net leverage ratio does not exceed 3.00 to 1.00. Additionally, up to $20.0 million of the Revolving Facility will be available for the issuance of letters of credit. At each of December 31, 2023 and December 31, 2022, the Company had outstanding one letter of credit issued in the amount of $0.2 million. The Company’s borrowings under the Credit Facility bear interest at annual rates that, at the Company’s option, will be either: •a base rate generally defined as the sum of (i) the greater of (a) the prime rate of Truist Bank, (b) the federal funds effective rate plus 0.5% and (c) the Benchmark rate (defined below) on a daily basis applicable for an interest period of one month plus 1.0% and (ii) an applicable percentage of 1.25% to 1.75% for loans under the Revolving Facility and 2.75% to 3.00% for loans under the Term Loan Facility, in each case, based on a first lien net leverage ratio; or •a Benchmark rate generally defined as the sum of (i) (a) Term SOFR and (b) the related Benchmark replacement adjustment and (ii) an applicable percentage of 2.25% to 2.75% for loans under the Revolving Facility and 3.75% and 4.00% for loans under the Term Loan Facility, in each case, based on a first lien net leverage ratio. Interest on the Company’s borrowings is payable quarterly in arrears for base rate loans and on the last day of each interest rate period (but not less often than three months) for SOFR rate loans. The Credit Facility contains a restrictive financial covenant, which is set at a first lien net leverage ratio of 2.50 to 1.00, except that this may increase by 0.50:1.00 for the four fiscal quarters following a material acquisition. The financial covenant will be tested only if the loans and certain other obligations under the Revolving Facility exceed $20.0 million as of the last date of any fiscal quarter (starting with the fiscal quarter ending on December 31, 2021). In addition, the Credit Facility contains mandatory prepayment events, affirmative and negative covenants and events of default customary for a transaction of this type. The covenants, among other things, restrict additional indebtedness, liens, mergers or certain fundamental changes, asset dispositions, dividends and other restricted payments, transactions with affiliates, loans and investments and other matters customarily restricted in credit agreements of this type. The Company is required to make mandatory prepayments of the outstanding principal amount of loans under the Term Loan Facility with the net cash proceeds from certain disposition of assets and the receipt of insurance proceeds upon certain casualty and condemnation events, in each case, to the extent not reinvested within a specified time period, from excess cash flow beyond stated threshold amounts, and from the incurrence of certain indebtedness. The Company has the right to prepay its term loans under the Credit Agreement, in whole or in part, at any time without premium or penalty, subject to certain limitations and a 1.0% soft call premium applicable during the first six months following the closing date. The Company was in compliance with all covenants at December 31, 2023. The Credit Facility requires the Company and certain of its subsidiaries to pledge as collateral, subject to certain customary exclusions, substantially all of its assets, including 100% of the equity in certain domestic subsidiaries and 65% of the voting equity, and 100% of the non-voting equity, in certain foreign subsidiaries. The obligations under the Credit Facility are unconditionally guaranteed on a senior basis by the Company's material domestic subsidiaries, which guaranties are secured by the collateral. With respect to the Revolving Facility, the Company is required to pay an unused commitment fee quarterly in arrears on the difference between committed amounts and amounts actually borrowed under the Revolving Facility equal to an applicable percentage of 0.25% to 0.50% per annum based on a first lien net leverage ratio. The Company is required to pay a letter of credit participation fee and a letter of credit fronting fee quarterly in arrears. The letter of credit participation fee is based upon the aggregate face amount of outstanding letters of credit at an applicable percentage of 2.25% to 2.75% based on a first lien net leverage ratio. The letter of credit fronting fee is 0.125% per annum on the face amount of each letter of credit. With respect to the Term Loan Facility, the Company is required to pay an unused commitment fee quarterly in arrears on the difference between committed amounts and amounts actually borrowed under the Term Loan Facility equal to an applicable SOFR rate plus an applicable percentage of 3.75% to 4.00% per annum based on a first lien net leverage ratio. The Company recognized $1.1 million in additional interest expense in the third quarter of 2021 due to the write-off of certain unamortized debt issuance costs associated with the Amended Revolving Credit Facility. In addition to the remaining unamortized debt issuance costs associated with the Amended Revolving Credit Facility, debt issuance costs of $2.8 million related to the Revolving Facility are being amortized to interest expense over the life of the Revolving Facility. Debt issuance costs of $3.5 million related to the Term Loan Facility and the original issue discount $2.5 million paid on the undrawn term loan facility were amortized to interest expense over the delayed draw access period. These deferred costs are included in prepaid and other current assets and other non-current assets in the Company's consolidated balance sheet. During 2023, the Company recorded interest expense related to its Revolving Facility of $1.5 million which consisted of $0.6 million in unused commitment fees and $0.9 million associated with the amortization of the debt issuance costs. During 2023, the Company recorded interest expense related to the Term Loan Facility of $22.2 million associated with borrowings bearing interest at the LIBO rate during the first six months of 2023 and the SOFR option rate during the last six months of 2023. During 2022, the Company recorded interest expense related to its Revolving Facility of $1.5 million which consisted of $0.6 million in unused commitment fees and $0.9 million associated with the amortization of the debt issuance costs. During 2022, the Company recorded interest expense related to the Term Loan Facility of $18.2 million which consisted of $9.6 million associated with borrowings bearing interest at the LIBO rate, $5.1 million in unused commitment fees, $2.0 million associated with the amortization of the debt issuance costs, and $1.5 million associated with the amortization of the original issue discount. During 2021, the Company recorded interest expense related to its revolving facilities of $3.4 million which consisted of $2.0 million in unused commitment fees and $1.4 million associated with the amortization of the debt issuance costs.

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