8. Debt

As of March 31, 2024 and December 31, 2023, unamortized discount and debt issuance costs were $7,012 and $4,030, respectively, and accumulated amortization of discount and debt issuance costs was $3,196 and $6,145, respectively.

For the three months ended March 31, 2024 and 2023, the amortization of debt issuance costs in interest expense, net in the condensed consolidated statements of operations was approximately $410 and $419, respectively.

Amended and Restated First Lien Credit Agreement

On August 21, 2014, we entered into a Credit Agreement (“Credit Agreement”) which was originally comprised of a term loan (“First Lien Term Loan”) and a revolving commitment (“Revolving Commitment”). The Credit Agreement was collateralized by substantially all personal property (including cash, inventory, property and equipment, and intangible assets), real property, and equity interests owned by us.

Under the First Lien Term Loan under the Credit Agreement, we had the option of selecting either (i) a Base Rate interest rate plus a fixed margin of 2.25% or (ii) a Eurodollar (LIBOR) interest rate for one, two, three or six months plus a fixed margin of 3.25%.

Under the Revolving Commitment under the Credit Agreement, we had the option of selecting either (i) a Base Rate interest rate plus a variable margin of 2.50% to 3.00%, based on our First Lien Net Debt Leverage Ratio, or (ii) a Eurodollar (LIBOR) interest rate for one, two, three or six months plus a variable margin of 3.50% to 4.00%, based on our First Lien Net Leverage Ratio.

In May 2019, we entered into the Amended and Restated First Lien Credit Agreement (“Amended and Restated First Lien Credit Agreement”) which amended and restated the entirety of the Credit Agreement.

First Lien Term Loan

In February 2020, we entered into Amendment No. 1 to Amended and Restated First Lien Credit Agreement, which changed the interest rate spreads associated with the credit agreement where (i) the variable margin associated with the Base Rate interest rate plus a variable margin based on our First Lien Net Leverage Ratio changed from 2.25% to 2.50% to 2.00% to 2.25% and (ii) the variable margin associated with the Eurodollar Rate interest rate for one, two, three or six months plus a variable margin based on our First Lien Net Leverage Ratio changed from 3.25% to 3.50% to 3.00% to 3.25%.

In December 2021, in connection with the Clean Streak Ventures acquisition, we entered into Amendment No. 3 to the Amended and Restated First Lien Credit Agreement, pursuant to which the previous First Lien Term Loan was increased by $290,000 to $903,301 with the balance due on May 14, 2026. The incremental increase in aggregate principal of $290,000 resulted in $285,962 of proceeds net of discount and debt issuance costs.

In December 2022, we entered into Amendment No. 4 to the Amended and Restated First Lien Credit Agreement with the lenders party thereto, and Jeffries Finance LLC, as administrative agent, to transition from LIBOR to Eurocurrency rate SOFR spread, whereas all revolver borrowings and term loan borrowings under the existing credit agreement will be SOFR based. All other terms governing this term loan facility remained substantially the same.

In March 2024, we entered into Amendment No. 5 to the Amended and Restated First Lien Credit Agreement with the lenders party thereto, and Bank of America, N.A. ("BofA") as the successor administrative agent and collateral agent. This amendment further modified the credit agreement by providing $925,000 in first lien term commitments, consisting of $901,201 to refinance outstanding term loans and $23,799 in additional incremental term commitments (collectively, the "2024 Term Loans"). The 2024 Term Loans have an interest rate of Term SOFR or Base Rate, at our option, plus an applicable margin (3.00% for SOFR Loans or 2.00% for Base Rate Loans), subject to step-downs based on the First Lien Net Leverage Ratio. For SOFR Loans, the margin starts at 3.00% and can decrease to 2.75% and 2.50% based on the First Lien Net Leverage Ratio. For Base Rate Loans, the margin begins at 2.00% and can decrease to 1.75% and 1.50%, depending on the First Lien Net Leverage Ratio. The SOFR rate has a floor of 0.00%. Starting September 30, 2024, the loans will be amortized in equal quarterly installments at an annual rate of 1.00% of the original principal amount. As a result of this amendment, the loans are scheduled to mature in March 2031. In connection with Amendment No. 5, we expensed $1,882 of previously unamortized debt issuance costs as a loss on extinguishment of debt in the condensed consolidated statements of operations.

As of March 31, 2024 and December 31, 2023, the amount outstanding under the First Lien Term Loan was $925,000 and 901,201, respectively. As of March 31, 2024 and December 31, 2023, the interest rate on the First Lien Term Loan was 8.33% and 8.46%, respectively.

The Amended and Restated First Lien Credit Agreement requires us to maintain compliance with a First Lien Net Leverage Ratio. As of March 31, 2024, we were in compliance with the First Lien Net Leverage Ratio financial covenant of the Amended and Restated First Lien Credit Agreement.

Revolving Commitment

In May 2019, as a part of the Amended and Restated First Lien Credit Agreement, the Revolving Commitment was increased from $50,000 to $75,000. We had the option of selecting either a Base Rate interest rate plus a variable margin based on our First Lien Net Leverage Ratio (ranging from 2.0% to 2.5%) or a Eurodollar Rate interest rate for one, two, three or six months plus a variable margin based on our First Lien Net Leverage Ratio (ranging from 3.0% to 3.5%).

In June 2021, we entered into Amendment No. 2 to our Amended and Restated First Lien Credit Agreement that (i) increased the maximum available borrowing capacity under the Revolving Commitment from $75,000 to $150,000 and (ii) extended the maturity date of the Revolving Commitment to the earliest to occur of (a) June 4, 2026, (b) the date that is six months prior to the maturity date of the First Lien Term Loan (provided that clause (b) shall not apply if the maturity date for the First Lien Term Loan is extended to a date that is at least six months after June 4, 2026, the First Lien Term Loan is refinanced having a maturity date at least six months after June 4, 2026, or the First Lien Term Loan is paid in full), (c) the date that commitments under the Revolving Commitment are permanently reduced to zero, and (d) the date of the termination of the commitments under the Revolving Commitment. The increase to the maximum available borrowing capacity was effected on the close of our initial public offering in June 2021.

In March 2024, we entered into Amendment No. 5 to our Amended and Restated First Lien Credit Agreement that consists of $150,000 to replace our existing Revolving Commitments and $150,000 in additional incremental Revolving Commitments. The amendment also updates the interest rate for these loans to SOFR or Base Rate, at our option, plus an applicable margin (2.50% for SOFR Loans or 1.50% for Base Rate Loans), subject to step-ups and step-downs based on the First Lien Net Leverage Ratio. Any unused commitment fee is also payable based on the First Lien Net Leverage Ratio. The Credit Agreement requires the Borrower to maintain a Rent Adjusted Total Net Leverage Ratio no greater than 6.50 to 1.00, tested quarterly beginning with the quarter ending September 30, 2024, for the benefit of lenders holding the Revolving Commitments. The Amendment also extends the time in which we can draw revolving loans under the Revolving Commitments until the earliest of March 2029.

As of March 31, 2024 and December 31, 2023, there were no amounts outstanding under the Revolving Commitments.

The maximum available borrowing capacity under the Revolving Commitments is reduced by outstanding letters of credit under the Revolving Commitments. As of March 31, 2024 and December 31, 2023, the available borrowing capacity under the Revolving Commitments was $299,716 and $149,193, respectively.

In addition, an unused commitment fee based on our First Lien Net Leverage Ratio is payable on the average of the unused borrowing capacity under the Revolving Commitments. As of March 31, 2024 and December 31, 2023, the unused commitment fee was 0.25%.

Standby Letters of Credit

As of March 31, 2024, we have a letter of credit sublimit of $90,000 under the Revolving Commitments, provided that the total utilization of revolving commitments under the Revolving Commitment does not exceed $300,000. Any letter of credit issued under the Amended and Restated Credit Agreement has an expiration date which is the earlier of (i) no later than 12 months from the date of issuance or (ii) five business days prior to the maturity date of the Revolving Commitments, as amended under Amendment No. 2 to the Amended and Restated First Lien Credit Agreement. Letters of credit under the Revolving Commitments reduce the maximum available borrowing capacity under the Revolving Commitment. As of March 31, 2024 and December 31, 2023, the amounts associated with outstanding letters of credit were $284 and $807, respectively.