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Debt (Tables) | 6 Months Ended
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Jun. 30, 2021
Debt [Abstract] |
Debt | For the six months ended June 30, 2021, the Company did not enter into any new long-term debt arrangements or modify its outstanding long-term debt, which is summarized in the table below.
|  | As of Jun. 30, 2021 |  |  | As of Dec. 31, 2020 |
8.43% Senior Notes, Series D, due 2022 |  | $ | 7,500 |  |  | $ | 7,500 |
Variable Rate Pennsylvania Economic Development Financing Authority Exempt Facilities Revenue Refunding Bonds, Series 2008A, due 2029 |  |  | 12,000 |  |  |  | 12,000 |
3.00% Pennsylvania Economic Development Financing Authority Exempt Facilities Revenue Refunding Bonds, Series A of 2019, due 2036 |  |  | 10,500 |  |  |  | 10,500 |
3.10% Pennsylvania Economic Development Financing Authority Exempt Facilities Revenue Refunding Bonds, Series B of 2019, due 2038 |  |  | 14,870 |  |  |  | 14,870 |
3.23% Senior Notes, due 2040 |  |  | 15,000 |  |  |  | 15,000 |
4.00% - 4.50% York County Industrial Development Authority Exempt Facilities Revenue Bonds, Series 2015, due 2029 - 2045 |  |  | 10,000 |  |  |  | 10,000 |
4.54% Senior Notes, due 2049 |  |  | 20,000 |  |  |  | 20,000 |
3.24% Senior Notes, due 2050 |  |  | 30,000 |  |  |  | 30,000 |
Committed Line of Credit, due September 2023 |  |  | 10,035 |  |  |  | 6,700 |
Total long-term debt |  |  | 129,905 |  |  |  | 126,570 |
Less discount on issuance of long-term debt |  |  | (175 | ) |  |  | (181 | )
Less unamortized debt issuance costs |  |  | (2,734 | ) |  |  | (2,816 | )
Long-term portion |  | $ | 126,996 |  |  | $ | 123,573 |

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