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Credit Facility and Acquisition Debt (Tables)
 12 Months Ended
Dec. 31, 2022
Debt Disclosure [Abstract]  
Schedule of Long-term Debt Instruments
Our Credit Facility and acquisition debt consisted of the following (in thousands): 
December 31, 2021December 31, 2022
Credit Facility$155,400 $190,700 
Debt issuance costs, net of accumulated amortization of $1,324 and $1,926, respectively
(1,543)(1,864)
Total Credit Facility$153,857 $188,836 
Acquisition debt$4,500 $3,993 
Less: current portion(521)(555)
Total acquisition debt, net of current portion$3,979 $3,438 
The interest expense and amortization of debt issuance costs related to our Credit Facility are as follows (in thousands):
Years ended December 31,
202020212022
Credit Facility interest expense$3,738 $1,820 $7,105 
Credit Facility amortization of debt issuance costs482 380 412 
The imputed interest expense related to our acquisition debt is as follows (in thousands):
Years ended December 31,
202020212022
Acquisition debt imputed interest expense$489 $364 $311 
The interest expense and accretion of debt discount and debt issuance costs related to our Convertible Notes are as follows (in thousands):
Years ended December 31,
202020212022
Convertible Notes interest expense$149 $18 $— 
Convertible Notes accretion of debt discount216 20 — 
Convertible Notes amortization of debt issuance costs20 1 — 
The interest expense and amortization of debt discount, debt premium and debt issuance costs related to our Senior Notes are as follows (in thousands):
Years ended December 31,
202020212022
Senior Notes interest expense$26,500 $21,767 $16,980 
Senior Notes amortization of debt discount528 504 493 
Senior Notes amortization of debt premium221 85 — 
Senior Notes amortization of debt issuance costs280 195 140 
Schedule of Maturities of Long-term Debt
The aggregate maturities of our Credit Facility and acquisition debt for the next five years subsequent to December 31, 2022 and thereafter, excluding debt issuance costs, are as follows (in thousands):
Credit FacilityAcquisition Debt
Years ending December 31,
2023$— $825 
2024— 772 
2025— 772 
2026190,700 325 
2027— 325 
Thereafter— 2,681 
Total Credit Facility and acquisition debt$190,700 $5,700 
Less: Interest— (1,707)
Present value of Credit Facility and acquisition debt$190,700 $3,993 
The aggregate maturities of our Senior Notes for the next five years subsequent to December 31, 2022 and thereafter are as follows (in thousands):
Principal MaturityDiscount AmortizationCarrying
 Value
Years ending December 31,
2023$— $(515)$(515)
2024— (539)(539)
2025— (563)(563)
2026— (588)(588)
2027— (615)(615)
Thereafter400,000 (886)399,114 
Total$400,000 $(3,706)$396,294