Commitments and Contingencies (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2022 |
Sep. 30, 2021 |
Sep. 30, 2022 |
Sep. 30, 2021 |
|
| Commitments and Contingencies | ||||
| Environmental expenses | $ 0.9 | $ 0.5 | $ 1.9 | $ 0.5 |
| Environmental Remediation Expense, Statement of Income or Comprehensive Income [Extensible Enumeration] | General and Administrative Expense | General and Administrative Expense | ||
| Insurance proceeds receivable | $ 4.6 | $ 4.6 | ||
| Purchase Commitments | ||||
| Commitments and Contingencies | ||||
| Purchase obligations and commitments | 39.7 | 39.7 | ||
| Surface Use and Compensation | ||||
| Timing of future payments | ||||
| Remaining 2022 | 0.1 | 0.1 | ||
| 2023 | 8.9 | 8.9 | ||
| 2024 | 9.8 | 9.8 | ||
| 2025 | 10.6 | 10.6 | ||
| 2026 | 11.3 | 11.3 | ||
| Thereafter | 4.5 | 4.5 | ||
| Fixed price power purchase contract | ||||
| Commitments and Contingencies | ||||
| Commitment obligations | $ 7.1 | $ 7.1 | ||
| X | ||||||||||
- Definition The amount of insurance proceeds receivable as at the end of the reporting period. No definition available.
|
| X | ||||||||||
- Definition Amount of commitment classified as other to be paid after fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). No definition available.
|
| X | ||||||||||
- Definition The charge against earnings in the period for known or estimated future costs arising from requirements to perform environmental remediation activities. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Indicates line item in statement of income or comprehensive income that includes environmental remediation expense. Reference 1: http://www.xbrl.org/2003/role/recommendedDisclosureRef
|
| X | ||||||||||
- Definition Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. No definition available.
|
| X | ||||||||||
- Definition Amount of commitment classified as other to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). No definition available.
|
| X | ||||||||||
- Definition Amount of commitment classified as other to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). No definition available.
|
| X | ||||||||||
- Definition Amount of commitment classified as other to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). No definition available.
|
| X | ||||||||||
- Definition Amount of commitment classified as other to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of commitment classified as other to be paid in remainder of current fiscal year. No definition available.
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Amount of purchase arrangement to be paid in next fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|