Revenue from Contracts with Customers - Current Long-Term Contracts Outstanding (Details) - Canada	Dec. 31, 2023 MMcf
Contracts to sell natural gas at USD index pricing | End Date, Quarter 4, 2025
Disaggregation of Revenue [Line Items]
Approximate Volumes	25
Contracts to sell natural gas at USD index pricing | End Date Quarter 4 2024
Disaggregation of Revenue [Line Items]
Approximate Volumes	31
Contracts to sell natural gas at USD index pricing | End Date Quarter42024 No.2
Disaggregation of Revenue [Line Items]
Approximate Volumes	25
Contracts to sell natural gas at USD index pricing | End Date Quarter4 2026
Disaggregation of Revenue [Line Items]
Approximate Volumes	49
Contracts to sell natural gas at USD index pricing | End Date Quarter4 2027
Disaggregation of Revenue [Line Items]
Approximate Volumes	30
Contracts to sell natural gas at USD index pricing | End Date Quarter4 2028
Disaggregation of Revenue [Line Items]
Approximate Volumes	10
Contracts to sell natural gas at CAD fixed pricing | End Date Quarter 4 2024
Disaggregation of Revenue [Line Items]
Approximate Volumes	124
Contracts to sell natural gas at CAD fixed pricing | End Date Quarter42024 No.3
Disaggregation of Revenue [Line Items]
Approximate Volumes	28