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DEBT
12 Months Ended
Dec. 31, 2021
Debt Disclosure [Abstract]  
DEBT DEBT
A summary of total debt outstanding at December 31, 2021 and 2020 is as follows:  
(thousands) 2021 2020
Long-term debt:
1.00% convertible notes due 2023
$ 172,500  $ 172,500 
Term loan due 2026 144,375  92,500 
Revolver due 2026 135,000  275,000 
7.50% senior notes due 2027
300,000  300,000 
1.75% convertible notes due 2028
258,750  — 
4.75% senior notes due 2029
350,000  — 
Total long-term debt 1,360,625  840,000 
Less: convertible notes debt discount, net (64,245) (16,072)
Less: term loan deferred financing costs, net (624) (434)
Less: senior notes deferred financing costs, net (9,267) (5,087)
Less: current maturities of long-term debt (7,500) (7,500)
Total long-term debt, less current maturities, net $ 1,278,989  $ 810,907 
1.75% Convertible Senior Notes due 2028
In December 2021, the Company issued $258.75 million aggregate principal amount of 1.75% Convertible Senior Notes due 2028 (the “1.75% Convertible Notes”). The total debt discount of $56.1 million at issuance consisted of two components: (i) the conversion option component, recorded to shareholders' equity, in the amount of $48.8 million, representing the difference between the principal amount of the 1.75% Convertible Notes upon issuance less the present value of the future cash flows of the 1.75% Convertible Notes using a borrowing rate for a similar non-convertible debt instrument and (ii) debt issuance costs of $7.3 million. The conversion option component of the 1.75% Convertible Notes was valued using Level 2 inputs under the fair value hierarchy. The unamortized portion of the total debt discount is being amortized to interest expense over the life of the 1.75% Convertible Notes. The effective interest rate on the 1.75% Convertible Notes, which includes the non-cash interest expense of debt discount amortization and debt issuance costs, was 4.97% as of December 31, 2021.
The net proceeds from the issuance of the 1.75% Convertible Notes were approximately $249.7 million, after deducting the initial purchasers’ discounts and commissions and offering expenses payable by the Company, but before deducting the net cost of the 1.75% Convertible Note Hedge Transactions and the Warrant Transactions (each as defined herein) described in Note 9. The 1.75% Convertible Notes are senior unsecured obligations of the Company and pay interest semi-annually in arrears on June 1 and December 1 of each year at an annual rate of 1.75%. The 1.75% Convertible Notes will mature on December 1, 2028 unless earlier repurchased or converted in accordance with their terms. Prior to June 1, 2028, the 1.75% Convertible Notes may be converted at the option of the holders only upon the occurrence of specified events and during certain periods, and thereafter until the close of business on the second scheduled trading day immediately preceding the maturity date. The Company will satisfy any conversion by paying cash up to the aggregate principal amount of the 1.75% Convertible Notes to be converted and by paying or delivering, as the case may be, cash, shares of the Company’s common stock, or a combination of cash and shares of the Company’s common stock, at its election, in respect of the remainder, if any, of its conversion obligation in excess of the aggregate principal amount of the 1.75% Convertible Notes being converted. The initial conversion rate for the 1.75% Convertible Notes is 9.9887 shares of the Company's common stock per $1,000 principal amount of the 1.75% Convertible Notes (or 2,584,578 shares in the aggregate) and is equal to an initial conversion price of approximately $100.11 per share. If an event of default on the 1.75% Convertible Notes occurs, the principal amount of the 1.75% Convertible Notes, plus accrued and unpaid interest (including additional interest, if any) may be declared immediately due and payable, subject to certain conditions.
The 1.75% Convertible Notes are senior unsecured indebtedness of the Company and are guaranteed by each of the Company’s subsidiaries that guarantee the obligations of the Company under the 2021 Credit Facility (as defined herein). 1.75% Convertible Notes holders may convert their Convertibles Notes on or after June 28, 2028 at any time at their option. Holders may convert 1.75% Convertible Notes prior to June 28, 2028, only under the following circumstances: (i) during any 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 a 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, (ii) during the five business day period after any five consecutive trading day 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 and (iii) upon the occurrence of certain specified distributions or corporate events.
4.75% Senior Notes due 2029
In April 2021, the Company issued $350.0 million aggregate principal amount of 4.75% Senior Notes due 2029 (the "4.75% Senior Notes"). The 4.75% Senior Notes will mature on May 1, 2029. Interest on the 4.75% Senior Notes started accruing April 20, 2021 and is payable semi-annually in cash in arrears May 1 and November 1 of each year, beginning on November 1, 2021. The effective interest rate on the 4.75% Senior Notes, which includes debt issuance costs, is approximately 4.97%. In connection with the issuance of the 4.75% Senior Notes, the Company incurred and capitalized as a reduction of the principal amount of the 4.75% Senior Notes approximately $5.1 million in deferred financing costs which are being amortized using the effective interest rate over the term of the 4.75% Senior Notes.
The 4.75% Senior Notes are senior unsecured indebtedness of the Company and are guaranteed by each of the Company’s subsidiaries that guarantee the obligations of the Company under the 2021 Credit Facility. If the Company experiences specific kinds of changes of control, the Company must offer to repurchase all of the 4.75% Senior Notes (unless otherwise redeemed) at a price equal to 101% of the aggregate principal amount thereof, plus accrued and unpaid interest. The Company may redeem the 4.75% Senior Notes, in whole or in part, at any time (a) prior to May 1, 2024, at a price equal to 100% of the principal amount thereof, plus the applicable premium described in the associated indenture and accrued and unpaid interest and (b) on or after May 1, 2024 at specified redemption prices set forth in the indenture, plus accrued and unpaid interest. In addition, prior to May 1, 2024, the Company may redeem, in one or more transactions, up to an aggregate of 40% of the original principal amount of the 4.75% Senior Notes at a redemption price equal to 104.75% of the principal amount thereof, plus accrued and unpaid interest, with the net cash proceeds of one or more equity offerings.
7.50% Senior Notes due 2027
In September 2019, the Company issued $300 million aggregate principal amount of 7.50% Senior Notes due 2027 (the “7.50% Senior Notes”). The 7.50% Senior Notes will mature on October 15, 2027. Interest on the 7.50% Senior Notes is payable semi-annually in cash in arrears on April 15 and October 15 of each year. The effective interest rate on the 7.50% Senior Notes, which includes debt issuance costs, is 7.82%. In connection with the issuance of the 7.50% Senior Notes, the Company incurred and capitalized as a reduction of the principal amount of the 7.50% Senior Notes approximately $5.8 million in deferred financing costs which is amortized using the effective interest rate over the term of the 7.50% Senior Notes.

The 7.50% Senior Notes are senior unsecured indebtedness of the Company and are guaranteed by each of the Company’s subsidiaries that guarantee the obligations of the Company under the 2021 Credit Facility. The Company may redeem the 7.50% Senior Notes, in whole or in part, at any time (a) prior to October 15, 2022, at a price equal to 100% of the principal amount thereof, plus the applicable premium described in the associated indenture and accrued and unpaid interest and (b) on or after October 15, 2022 at specified redemption prices set forth in the indenture, plus accrued and unpaid interest. In addition, prior to October 15, 2022, the Company may redeem, in one or more transactions, up to an aggregate of 40% of the original principal amount of the 7.50% Senior Notes at a redemption price equal to 107.5% of the principal amount thereof, plus accrued and unpaid interest, with the net cash proceeds of one or more equity offerings. If the Company experiences specific kinds of changes of control, the Company must offer to repurchase all of the 7.50% Senior Notes (unless otherwise redeemed) at a price equal to 101% of the aggregate principal amount thereof, plus accrued and unpaid interest.
2021 Credit Facility
Simultaneously with the issuance of the 4.75% Senior Notes, the Company entered into the Fourth Amended and Restated Credit Agreement (the "2021 Credit Agreement"). The 2021 Credit Agreement amended and extended the Company's 2019 Credit Agreement (as defined herein) and consists of a $550 million senior secured revolver (the "2021 Revolver") and a $150 million senior secured term loan (the "2021 Term Loan" and together with the 2021 Revolver, the "2021 Credit Facility"). The maturity date for borrowings under the 2021 Credit Agreement is April 20, 2026. Upon the satisfaction of certain conditions, and obtaining incremental commitments from its lenders, the Company may be able to increase the borrowing capacity of the 2021 Credit Facility by up to $250.0 million for acquisitions.

The Company determined that the terms of the 2021 Credit Agreement were not substantially different from the terms of the Company’s 2019 Credit Agreement. Accordingly, debt modification accounting treatment was applied and the related impacts were immaterial.
Borrowings under the 2021 Credit Facility are secured by substantially all personal property assets of the Company and any domestic subsidiary guarantors. Pursuant to the 2021 Credit Agreement:
The 2021 Term Loan is due in consecutive quarterly installments in the following amounts: (i) beginning June 30, 2021, through and including March 31, 2024, $1,875,000 and (ii) beginning June 30, 2024, and each quarter thereafter, $3,750,000, with the remaining balance due at maturity;
The interest rates for borrowings under the 2021 Revolver and the 2021 Term Loan are the Prime Rate or LIBOR plus a margin, which ranges from 0.00% to 0.75% for Prime Rate loans and from 1.00% to 1.75% for LIBOR loans depending on the Company's consolidated total leverage ratio, as defined below. The Company is required to pay fees on unused but committed portions of the 2021 Revolver, which range from 0.15% to 0.225%; and
Covenants include requirements as to a maximum consolidated secured net leverage ratio (2.75:1.00, increasing to 3.25:1.00 in certain circumstances in connection with Company acquisitions) and a minimum consolidated fixed charge coverage ratio (1.50:1.00) that are tested on a quarterly basis, a minimum liquidity requirement applicable during the six-month period preceding the maturity of the Company's 1.00% Convertible Notes due 2023, and other customary covenants.
The total face value of the 2021 Term Loan is $150.0 million. Total available borrowing capacity under the 2021 Revolver is $550.0 million. At December 31, 2021, the Company had $144.4 million outstanding under the 2021 Term Loan under the LIBOR-based option, and borrowings outstanding under the 2021 Revolver of $135.0 million under the LIBOR-based option. The interest rate for incremental borrowings at December 31, 2021 was LIBOR plus 1.50% (or 1.63%) for the LIBOR-based option. The fee payable on committed but unused portions of the 2021 Revolver was 0.20% at December 31, 2021.
2019 Credit Facility
The Company's previous credit agreement (the "2019 Credit Agreement") was amended by the 2021 Credit Agreement in April 2021 as discussed above. The 2019 Credit Agreement consisted of a $550 million senior secured revolver (the “2019 Revolver”) and a $100 million senior secured term loan (the “2019 Term Loan” and together with the 2019 Revolver, the “2019 Credit Facility”).
1.00% Convertible Senior Notes due 2023
In January 2018, the Company issued $172.5 million aggregate principal amount of 1.00% Convertible Senior Notes due 2023 (the “1.00% Convertible Notes”). The total debt discount of $36.2 million at issuance consisted of two components: (i) the conversion option component, recorded to shareholders' equity, in the amount of $31.9 million, representing the difference between the principal amount of the 1.00% Convertible Notes upon issuance less the present value of the future cash flows of the 1.00% Convertible Notes using a borrowing rate for a similar non-convertible instrument and (ii) debt issuance costs of $4.3 million. The unamortized portion of the total debt discount is being amortized to interest expense over the life of the 1.00% Convertible Notes. The effective interest rate on the 1.00% Convertible Notes, which includes the non-cash interest expense of debt discount amortization and debt issuance costs, was 5.25% as of December 31, 2021 and 2020.
The net proceeds from the issuance of the 1.00% Convertible Notes were approximately $167.5 million, after deducting the initial purchasers’ discounts and commissions and offering expenses payable by the Company, but before deducting the net
cost of the 1.00% Convertible Note Hedge Transactions and the Warrant Transactions (each as defined herein) described in Note 9. The 1.00% Convertible Notes are senior unsecured obligations of the Company and pay interest semi-annually in arrears on February 1 and August 1 of each year at an annual rate of 1.00%. The 1.00% Convertible Notes will mature on February 1, 2023 unless earlier repurchased or converted in accordance with their terms. The 1.00% Convertible Notes are convertible by the noteholders, in certain circumstances and subject to certain conditions, into cash, shares of common stock of the Company, or a combination thereof, at the Company’s election. The initial conversion rate for the 1.00% Convertible Notes is 11.3785 shares of the Company's common stock per $1,000 principal amount of the 1.00% Convertible Notes (or 1,962,790 shares in the aggregate) and is equal to an initial conversion price of approximately $87.89 per share. If an event of default on the 1.00% Convertible Notes occurs, the principal amount of the 1.00% Convertible Notes, plus accrued and unpaid interest (including additional interest, if any) may be declared immediately due and payable, subject to certain conditions.
The 1.00% Convertible Notes are senior unsecured indebtedness of the Company and are guaranteed by each of the Company’s subsidiaries that guarantee the obligations of the Company under the 2021 Credit Facility. 1.00% Convertible Notes holders may convert their 1.00% Convertibles Notes on or after August 1, 2022 at any time at their option. Holders may convert 1.00% Convertible Notes prior to August 1, 2022, only under the following circumstances: (i) during any 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 a 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, (ii) during the five business day period after any five consecutive trading day 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 and (iii) upon the occurrence of certain specified distributions or corporate events.

Debt Maturities
As of December 31, 2021, the aggregate maturities of total long-term debt for the next five fiscal years and thereafter are as follows (in thousands):
2022 $ 7,500 
2023 180,000 
2024 13,125 
2025 15,000 
2026 236,250 
Thereafter 908,750 
Total $ 1,360,625 
Letters of credit totaling $5.4 million were outstanding at December 31, 2021 that exist to meet credit requirements for the Company’s insurance providers.
Cash paid for interest for the years ended December 31, 2021, 2020 and 2019 was $45.0 million, $36.1 million and $22.1 million, respectively.