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Debt (Tables) | 12 Months Ended
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Dec. 31, 2020
Debt Disclosure [Abstract] |
Schedule of Total Debt | The table below reflects the Company’s total debt, including borrowings under its credit agreement and master loan agreement for equipment notes:
(dollars in thousands) |  | Inception Date |  | Stated Interest Rate (per annum) |  | Payment Frequency |  | Term (years) |  | Outstanding Balance as of December 31, 2020 |  | Outstanding Balance as of December 31, 2019
Credit Agreement |  |  |  |  |  |  |  |  |  |  |  |
Revolving loans |  | 9/13/2019 |  | Variable |  | Variable |  | 5 |  | $ | — |  |  | $ | 103,820 |
Equipment Notes |  |  |  |  |  |  |  |  |  |  |  |
Equipment Note 1 |  | 9/28/2018 |  | 4.16% |  | Semi-annual |  | 5 |  | $ | — |  |  | $ | 10,643 |
Equipment Note 2 |  | 9/28/2018 |  | 4.23% |  | Semi-annual |  | 7 |  | — |  |  | 11,200 |
Equipment Note 3 |  | 12/31/2018 |  | 3.97% |  | Semi-annual |  | 5 |  | — |  |  | 1,953 |
Equipment Note 4 |  | 12/31/2018 |  | 4.02% |  | Semi-annual |  | 7 |  | — |  |  | 2,108 |
Equipment Note 5 |  | 12/31/2018 |  | 4.01% |  | Semi-annual |  | 7 |  | — |  |  | 1,751 |
Equipment Note 6 |  | 6/25/2019 |  | 2.89% |  | Semi-annual |  | 7 |  | 12,896 |  |  | 14,286 |
Equipment Note 7 |  | 6/24/2019 |  | 3.09% |  | Semi-annual |  | 5 |  | 6,980 |  |  | 9,033 |
Equipment Note 8 |  | 12/27/2019 |  | 2.75% |  | Semi-annual |  | 5 |  | 5,513 |  |  | 6,496 |
Equipment Note 9 |  | 12/24/2019 |  | 3.01% |  | Semi-annual |  | 7 |  | 4,031 |  |  | 4,534 |
|  |  |  |  |  |  |  |  |  | 29,420 |  |  | 62,004 |
Total debt |  |  |  |  |  |  |  |  |  | 29,420 |  |  | 165,824 |
Less: current portion of long-term debt |  |  |  |  |  |  |  |  |  | (4,381) |  |  | (8,737) |
Long-term debt |  |  |  |  |  |  |  |  |  | $ | 25,039 |  |  | $ | 157,087 |
Schedule of Remaining Principal Payments for Long term Obligations | The following table sets forth our remaining principal payments for the Company’s outstanding Equipment Notes as of December 31, 2020:
(in thousands) |  | Future Equipment Notes Principal Payments
2021 |  | $ | 4,381 |
2022 |  | 4,511 |
2023 |  | 4,645 |
2024 |  | 7,102 |
2025 |  | 2,189 |
Thereafter |  | 6,592 |
Total future principal payments |  | $ | 29,420 |
Less: current portion of equipment notes |  | (4,381) |
Long-term principal obligations |  | $ | 25,039 |

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