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Supplemental Cash Flow Information (Tables) | 9 Months Ended
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Sep. 30, 2021
Supplemental Cash Flow Elements [Abstract] |
Additional Information Relating to Cash Flow Activities | The following provides additional information relating to cash flow activities:
|  | Nine Months Ended |
|  | September 30, |
|  | 2021 |  |  | 2020 |
|  | (In Thousands) |
Cash refunds for: |  |  |  |  |  |  |  |
Income taxes, net |  | $ | (183 | ) |  | $ | (319 | )
Noncash investing and financing activities: |  |  |  |  |  |  |  |
Accounts receivable, supplies, other assets, accounts payable and accrued liabilities associated with additions of property, plant and equipment |  | $ | 20,321 |  |  | $ | 12,974 |
Series E and Series F Redeemable Preferred and related dividends, accretion, and embedded derivative exchanged for common stock, net of related costs in accounts payable |  | $ | 301,403 |  |  | $ | 27,402 |
Extinguishment of PPP loan |  | $ | 10,000 |  |  | $ | — |
Accounts payable associated with debt-related costs |  | $ | 8,870 |  |  | $ | — |

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