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Long-term Debt - Narrative (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019 | May 26, 2016 | Sep. 22, 2006
--- | --- | --- | --- | ---
Debt Instrument |  |  |  |
Notes Payable, Noncurrent | $ 158,041 | $ 158,932 |  |
BB&T Term Note Payable |  |  |  |
Debt Instrument |  |  |  |
Debt Instrument, Interest Rate, Effective Percentage | 1.81% |  |  |
Notes Payable, Noncurrent |  |  | $ 5,200 |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 1.65% |
SBA Note Payable |  |  |  |
Debt Instrument |  |  |  |
Notes Payable, Noncurrent |  |  |  | $ 20,000
Debt Instrument, Interest Rate, Stated Percentage | 0.66% |  |  |
150M Senior Notes |  |  |  |
Debt Instrument |  |  |  |
Debt Instrument, Interest Rate, Effective Percentage | 6.25% |  |  |

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