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Debt
 6 Months Ended
Jun. 30, 2026
Debt Disclosure [Abstract]  
Debt DEBT
Our long-term debt consists of the following (in thousands):
June 30, 2026December 31, 2025
Senior Notes
$397,693 $397,319 
Credit Facility
122,912 125,435 
Acquisition debt, net of current portion
5,411 5,581 
Total Long-term debt
$526,016 $528,335 
Senior Notes
The carrying value of our 4.25% senior notes due 2029 (the “Senior Notes”) is reflected on our Condensed Consolidated Balance Sheets as follows (in thousands):
June 30, 2026December 31, 2025
Principal amount$400,000 $400,000 
Debt discount, net of accumulated amortization of $2,702 and $2,411, respectively
(1,798)(2,089)
Debt issuance costs, net of accumulated amortization of $768 and $685, respectively
(509)(592)
Carrying value of the Senior Notes$397,693 $397,319 
At June 30, 2026, the fair value of the Senior Notes, which are Level 2 measurements, was $383.1 million.
The Senior Notes were issued under an indenture, dated as of May 13, 2021 (the “Indenture”), among the Company, the Subsidiary Guarantors and Wilmington Trust, National Association, as trustee. The Senior Notes are unsecured, senior obligations and are fully and unconditionally guaranteed on a senior unsecured basis, jointly and severally by each of the Subsidiary Guarantors. The Senior Notes mature on May 15, 2029, unless earlier redeemed or purchased and bear interest at 4.25% per year, which is payable semi-annually in arrears on May 15 and November 15 of each year, beginning on November 15, 2021.
The Indenture contains restrictive covenants limiting our ability and our Restricted Subsidiaries (as defined in the Indenture) to, among other things, incur additional indebtedness or issue certain preferred shares, create liens on certain assets to secure debt, pay dividends or make other equity distributions, purchase or redeem capital stock, make certain investments, sell assets, agree to certain restrictions on the ability of Restricted Subsidiaries to make payments to us, consolidate, merge, sell or otherwise dispose of all or substantially all assets, or engage in transactions with affiliates. The Indenture also contains customary events of default.
The interest expense and amortization of debt discount and debt issuance costs related to our Senior Notes are as follows (in thousands):
Three months ended June 30,Six months ended June 30,
2026202520262025Filter Handle
Senior Notes interest expense4,250 4,250 $8,500 $8,500 X
Senior Notes amortization of debt discount145 140 291 278 X
Senior Notes amortization of debt issuance costs42 40 83 79 X
The debt discount and the debt issuance costs are being amortized using the effective interest method over the remaining term of approximately 35 months of the Senior Notes. The effective interest rates on the unamortized debt discount and the unamortized debt issuance costs for the Senior Notes for both the three and six months ended June 30, 2026 and 2025 were 4.42% and 4.30%, respectively.
Credit Facility
At June 30, 2026, our senior secured revolving credit facility (as amended, the “Credit Facility”) was comprised of: (i) a $250.0 million revolving credit facility, including a $15.0 million subfacility for letters of credit and a $10.0 million swingline, and (ii) an accordion or incremental option allowing for future increases in the facility size by an additional amount of up to $75.0 million in the aggregate in the form of increased revolving commitments or incremental term loans.
Our obligations under the Credit Facility are unconditionally guaranteed on a joint and several basis by the same subsidiaries which guarantee the Senior Notes (as defined in Senior Notes above) and certain of our subsequently acquired or organized domestic subsidiaries (collectively, the “Subsidiary Guarantors”).
On July 31, 2024, the Company entered into a fourth amendment, (the “Credit Facility Amendment”), to our Credit Facility, with the financial institutions party thereto, as lenders, and Bank of America, N.A., as administrative agent. The Credit Facility Amendment provided, among other things, for (i) the extension of the maturity date of the Credit Facility to July 31, 2029, provided that, if the Senior Notes (as defined in the Credit Facility) have a stated maturity date that is prior to July 31, 2029, then the maturity date shall instead be the date that is 91 days prior to the stated maturity date of the Senior Notes; (ii) the establishment of Term Secured Overnight Financing Rate (“SOFR”) as a benchmark rate and the removal of BSBY from the Credit Facility, including conforming revisions to certain defined terms under the Credit Facility; (iii) the conversion of each existing BSBY Rate Loan (as defined in the Credit Facility prior to giving effect to the Credit Facility Amendment) to a Term SOFR Loan (as defined in the Credit Facility); (iv) modifications to the definitions of “Applicable Rate” and “Applicable Fee Rate” to change the applicable rates and pricing levels set forth in each pricing grid; (v) the removal of certain mandatory prepayments arising from the issuance of either Equity Interests or Debt (as both are defined by the Credit Facility); and (vi) modifications to the permitted investments covenant, relating to the Company’s ability to make certain acquisitions, subject to the satisfaction of certain conditions therein.
The Credit Facility contains customary affirmative covenants, including, but not limited to, covenants with respect to the use of proceeds, payment of taxes and other obligations, continuation of the Company’s business and the maintenance of existing rights and privileges, the maintenance of property and insurance, among others.
In addition, the Credit Facility also contains customary negative covenants, including, but not limited to, covenants that restrict (subject to certain exceptions) the ability of the Company and the Subsidiary Guarantors to incur indebtedness, grant liens, make investments, engage in mergers and acquisitions, and pay dividends and other restricted payments, and certain financial maintenance covenants. At June 30, 2026, we were subject to the following financial covenants under our Credit Facility: (A) a Total Leverage Ratio not to exceed 5.00 to 1.00 and (B) a Fixed Charge Coverage Ratio (as defined in the Credit Facility) of not less than 1.20 to 1.00 as of the end of any period of four consecutive fiscal quarters. These financial maintenance covenants are calculated for the Company and its subsidiaries on a consolidated basis. We were in compliance with all of the covenants contained in our Credit Facility at June 30, 2026.
Our Credit Facility and acquisition debt consisted of the following (in thousands): 
June 30, 2026December 31, 2025
Credit Facility$124,000 $126,700 
Debt issuance costs, net of accumulated amortization of $3,477 and $3,300, respectively
(1,088)(1,265)
Total Credit Facility$122,912 $125,435 
Acquisition debt$6,205 $6,188 
Less: current portion(794)(607)
Total acquisition debt, net of current portion$5,411 $5,581 
At June 30, 2026, we had outstanding borrowings under the Credit Facility of $124.0 million. We also had one letter of credit for $2.2 million under the Credit Facility. The letter of credit will expire on November 25, 2026, and is expected to automatically renew annually and secures our obligations under our various self-insured policies. At June 30, 2026, we had $123.8 million of availability under the Credit Facility.
Outstanding borrowings under our Credit Facility bear interest at a prime rate or the SOFR rate, plus an applicable margin based on our leverage ratio. At June 30, 2026, the prime rate margin was equivalent to 1.125% and the SOFR term margin was 2.225%. The weighted average interest rate on our Credit Facility was 6.0% and 6.8% for the three months ended June 30, 2026 and 2025, respectively. The weighted average interest rate on our Credit Facility was 5.9% and 6.9% for the three months ended June 30, 2026 and 2025, respectively.
We have no material assets or operations independent of the Subsidiary Guarantors, as all of our assets and operations are held and conducted by the Subsidiary Guarantors. Additionally, we do not currently have any significant restrictions on our ability to receive dividends or loans from any Subsidiary Guarantors.
The interest expense and amortization of debt issuance costs related to our Credit Facility are as follows (in thousands):
Three months ended June 30,Six months ended June 30,
2026202520262025
Credit Facility interest expense1,977 2,102 $3,964 $4,601 
Credit Facility amortization of debt issuance costs90 89 177 177 
Acquisition debt
Acquisition debt consists of deferred purchase price and promissory notes payable to sellers. A majority of the deferred purchase price and notes bear no interest and are discounted at imputed interest rates ranging from 6.5% to 8.5%. Original maturities typically range from nine to twenty years.
The imputed interest expense related to our acquisition debt is as follows (in thousands):
Three months ended June 30,Six months ended June 30,
2026202520262025
Acquisition debt imputed interest expense$112 $93 262 187