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Supplemental Cash Flow Information (Tables) | 12 Months Ended
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Dec. 31, 2020
Supplemental Cash Flow Information [Abstract] |
Schedule of Cash Flow, Supplemental Disclosures | Supplemental cash flows and non-cash transactions were as follows for the periods indicated (in thousands):
| Year Ended December 31,
| 2020 |  | 2019 |  | 2018
Cash paid for interest | $ | 1,096 |  |  | $ | 1,005 |  |  | $ | 273 |
Cash paid (received) for income taxes, net of refunds | (2,512) |  |  | 13,330 |  |  | 1,848 |
Non-cash transactions: |  |  |  |  |
Change in accruals related to purchases of property, plant and equipment and intangibles | $ | (4,832) |  |  | $ | 781 |  |  | $ | 5,910 |
Financed insurance premium | 1,910 |  |  | — |  |  | 6,798 |
Net transfers from inventory to property, plant and equipment | 1,967 |  |  | 3,190 |  |  | 4,529 |

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