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Revenue from Contracts with Customers (Current Long-Term Contracts Outstanding) (Details) | Mar. 31, 2021 Boe MMcf
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Q4 2021 | United States |
Disaggregation of Revenue [Line Items] |
Revenue, remaining performance obligation, oil quantity per day | Boe | 17,000
Q4 2021 | Canada | Contracts to sell natural gas at USD Index pricing |
Disaggregation of Revenue [Line Items] |
Remaining performance obligation | 10
Q4 2022 | Canada | Contracts to sell natural gas at USD Index pricing |
Disaggregation of Revenue [Line Items] |
Remaining performance obligation | 8
Q4 2022 | Canada | Contracts to sell natural gas at Alberta AECO fixed prices |
Disaggregation of Revenue [Line Items] |
Remaining performance obligation | 5
Q4 2022 | Canada | Contracts to sell natural gas at USD Index pricing |
Disaggregation of Revenue [Line Items] |
Remaining performance obligation | 20
Q4 2023 | Canada | Contracts to sell natural gas at USD Index pricing |
Disaggregation of Revenue [Line Items] |
Remaining performance obligation | 25
Q4 2023 | Canada | Contracts to sell natural gas at Alberta AECO fixed prices |
Disaggregation of Revenue [Line Items] |
Remaining performance obligation | 38
Q4 2024 | Canada | Contracts to sell natural gas at USD Index pricing |
Disaggregation of Revenue [Line Items] |
Remaining performance obligation | 31
Q4 2024 | Canada | Contracts to sell natural gas at USD Index pricing |
Disaggregation of Revenue [Line Items] |
Remaining performance obligation | 15
Q4 2024 | Canada | Contracts to sell natural gas at Alberta AECO fixed prices |
Disaggregation of Revenue [Line Items] |
Remaining performance obligation | 134
Q4 2026 | Canada | Contracts to sell natural gas at USD Index pricing |
Disaggregation of Revenue [Line Items] |
Remaining performance obligation | 49
Q3 2023 | Canada | Contracts to sell natural gas liquids at various CAD pricing |
Disaggregation of Revenue [Line Items] |
Revenue, remaining performance obligation, oil quantity per day | Boe | 730

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