Commitments (Details) $ in Millions	Sep. 30, 2021 USD ($)
Drilling Rig Leasing Contracts
Commitments and Contingencies [Line Items]
Early Termination Penalty for Rig Contract Cancellation	$ 5.1
Contractual Obligation	8.6
Operating Lease
Commitments and Contingencies [Line Items]
Contractual Obligation	25.8
Minimum
Commitments and Contingencies [Line Items]
Potential penalty for not meeting minimum drilling and completion requirements	0.0
Maximum
Commitments and Contingencies [Line Items]
Potential penalty for not meeting minimum drilling and completion requirements	$ 25.9