| Schedule of Long-term Debt Instruments |
Our long-term debt consists of the following (in thousands): | | | | | | | | | | | | | | June 30, 2026 | | December 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 | | |
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, | | | 2026 | | 2025 | | 2026 | | 2025 | | | Filter Handle | | Senior Notes interest expense | 4,250 | | | 4,250 | | | $ | 8,500 | | | $ | 8,500 | | | | X | | Senior Notes amortization of debt discount | 145 | | | 140 | | | 291 | | | 278 | | | | X | | | | | | | | | | | | | Senior Notes amortization of debt issuance costs | 42 | | | 40 | | | 83 | | | 79 | | | | X |
Our Credit Facility and acquisition debt consisted of the following (in thousands): | | | | | | | | | | | | | | June 30, 2026 | | December 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 | | |
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, | | 2026 | | 2025 | | 2026 | | 2025 | | | | Credit Facility interest expense | 1,977 | | | 2,102 | | | $ | 3,964 | | | $ | 4,601 | | | | | Credit Facility amortization of debt issuance costs | 90 | | | 89 | | | 177 | | | 177 | | | |
The imputed interest expense related to our acquisition debt is as follows (in thousands): | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Three months ended June 30, | | Six months ended June 30, | | 2026 | | 2025 | | 2026 | | 2025 | | | | Acquisition debt imputed interest expense | $ | 112 | | | $ | 93 | | | 262 | | | 187 | | | |
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| Schedule of Carrying Values |
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, 2026 | | December 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 | | |
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