8. Debt

As of March 31, 2023 and December 31, 2022, unamortized discount and debt issuance costs were $5,310 and $5,729, respectively, and accumulated amortization of discount and debt issuance costs was $4,865 and $4,446, respectively.

For the three months ended March 31, 2023 and 2022, the amortization of debt issuance costs in interest expense, net in the unaudited condensed consolidated statements of operations and comprehensive income was approximately $419.

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 Credit Agreement and with respect to the First Lien Term Loan, we had the option of selecting either (i) a Base Rate interest rate plus 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 Credit Agreement and with respect to the Revolving Commitment, 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.

First Lien Term Loan

In February 2020, we entered into Amendment No. 1 to Amended and Restated First Lien Credit Agreement (“Amended First Lien Credit Agreement”) which amended and restated the Amended and Restated First Lien Credit Agreement entered into in May 2019 (the “First Lien Credit Agreement”). The Amended First Lien Credit Agreement changed the interest rate spreads associated with the First Lien 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 (“Amended First Lien Credit Agreement”) which amended and restated the Amended and Restated First Lien Credit Agreement entered into in May 2019 ("First Lien Credit Agreement"). Under the terms of the Amended First Lien Credit Agreement, 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 its 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.

As of March 31, 2023 and December 31, 2022, the amount outstanding under the First Lien Term Loan was $901,201. As of March 31, 2023 and December 31, 2022, the interest rate on the First Lien Term Loan was 7.99% and 7.42%, 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, 2023, 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 and the expiration date was changed from August 21, 2019 to May 14, 2024. 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 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.

As of March 31, 2023 and December 31, 2022, there were no amounts outstanding under the Revolving Commitment.

The maximum available borrowing capacity under the Revolving Commitment is reduced by outstanding letters of credit under the Revolving Commitment. As of March 31, 2023 and December 31, 2022, the available borrowing capacity under the Revolving Commitment was $148,808 and $148,581, 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 Commitment. As of March 31, 2023 and December 31, 2022, the unused commitment fee was 0.25%.

Standby Letters of Credit

As of March 31, 2023, we have a letter of credit sublimit of $10,000 under the Revolving Commitment, provided that the total utilization of revolving commitments under the Revolving Commitment does not exceed $150,000 subsequent to the First Lien Credit Agreement. Any letter of credit issued under the 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 Commitment, as amended under Amendment No. 2 to Amended and Restated First Lien Credit Agreement. Letters of credit under the Revolving Commitment reduce the maximum available borrowing capacity under the Revolving Commitment. As of March 31, 2023 and December 31, 2022, the amounts associated with outstanding letters of credit were $1,192 and $1,419, respectively, and unused letters of credit under the Revolving Commitment were $8,808 and $8,581, respectively.