As of June 30, 2021 and December 31, 2020, unamortized deferred financing costs were $3,866 and $7,494, respectively, and accumulated amortization of deferred financing costs was $2,308 and $3,057, respectively.

For the three months ended June 30, 2021 and 2020, the amortization of deferred financing costs in interest expense, net in the unaudited condensed consolidated statements of operations and comprehensive loss was approximately $342 and $413, respectively.

For the six months ended June 30, 2021 and 2020, the amortization of deferred financing costs in interest expense, net in the unaudited condensed consolidated statements of operations and comprehensive loss was approximately $698 and $827, respectively.

Credit Agreement

On August 21, 2014, the Company 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 the Company.

Under the Credit Agreement and with respect to the First Lien Term Loan, the Company 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, the Company had the option of selecting either (i) a Base Rate interest rate plus a variable margin of 2.50% to 3.00%, based on the Company’s 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 the Company’s First Lien Net Leverage Ratio.

First Lien Term Loan

In February 2020, the Company 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 ("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 the Company’s 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 the Company’s First Lien Net Leverage Ratio changed from 3.25% to 3.50% to 3.00% to 3.25%. In connection with the Amended First Lien Credit Agreement, the Company expensed $1,918 of previously unamortized deferred financing costs as a loss on extinguishment of debt in the unaudited condensed consolidated statements of operations and comprehensive loss.

In February 2020 and March 2020, the Company borrowed $30,000 and $10,000, respectively, under the delayed draw facility under the First Lien Term Loan, utilizing the full $40,000 available under the delayed draw facility. As a result of the additional borrowings under the delayed draw facility, the quarterly principal payments associated with the First Lien Term Loan increased from $2,000 to $2,100.

In June 2021, the Company made a voluntary prepayment of $190,400 of outstanding principal under the First Lien Term Loan funded by the net proceeds from the IPO. In connection with the voluntary prepayment, the Company expensed $1,037 of previously unamortized deferred financing costs as a loss on extinguishment of debt in the unaudited condensed consolidated statements of operations and comprehensive loss.

As of June 30, 2021 and December 31, 2020, the interest rate on the First Lien Term Loan was 3.10% and 3.40%, respectively.

The Amended First Lien Credit Agreement requires the Company to maintain compliance with a First Lien Net Leverage Ratio. As of June 30, 2021, the Company was in compliance with the First Lien Net Leverage Ratio financial covenant of the Amended First Lien Credit Agreement.

Revolving Commitment

In June 2021, the Company 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 the IPO in June 2021. In connection with the amendment, the Company expensed $87 of previously unamortized deferred financing costs as a loss on extinguishment of debt in the unaudited condensed consolidated statements of operations and comprehensive loss.

As of June 30, 2021 and December 31, 2020, the unused borrowing capacity of the Revolving Commitment was $150,000 and $75,000, respectively.

In addition, an unused commitment fee based on the Company’s First Lien Net Leverage Ratio is payable on the average of the unused borrowing capacity under the Revolving Commitment. As of June 30, 2021 and December 31, 2020, the unused commitment fee was 0.25% and 0.50%, respectively.

Standby Letters of Credit

As of June 30, 2021, the Company has available standby letters of credit 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. As of June 30, 2021 and December 31, 2020, the amounts associated with outstanding letters of credit were $306 and $469, respectively.

Second Lien Credit Agreement

In March 2020, the Company entered into the First Amendment to Second Lien Credit Agreement (“Amended Second Lien Credit Agreement”). The Amended Second Lien Credit Agreement provided for an incremental term loan to the Company in an aggregate amount of $5,625 under the same terms as the Second Lien Credit Agreement. The incremental term loan under the Amended Second Lien Credit Agreement is an investment from a related party (see Note 14-Related-Party Transactions). The Amended Second Lien Credit Agreement also allowed the Company to make its quarterly interest payments on the term loan under the Amended Second Lien Credit Agreement ("Second Lien Term Loan") via payment-in-kind (“PIK”) by adding such amount to the outstanding principal amount of the Second Lien Term Loan. The Company made PIK additions to its outstanding principal amounts in the amounts of $5,906 and $6,142 in March 2020 and June 2020, respectively. The Amended Second Lien Credit Agreement also increased the interest rate of the Second Lien Term Loan to 10.50% effective January 1, 2020 to June 30, 2020.

In June 2021, the Company made a voluntary prepayment of all outstanding borrowings under the Second Lien Term Loan funded by the net proceeds from the IPO, which included outstanding principal of $242,673 and accrued interest expense of $6,050. In connection with this voluntary prepayment, the Company expensed $2,059 of previously unamortized deferred financing costs as a loss on extinguishment of debt in the unaudited condensed consolidated statements of operations and comprehensive loss.

As of December 31, 2020 and through the date of extinguishment, the interest rate on the Second Lien Term Loan was 10.00%.