Supplemental Cash Flow Supplemental Cash Flow (Details) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Supplemental Cash Flow Elements [Line Items]
Interest Paid, Excluding Capitalized Interest, Operating Activities	$ 58,143	$ 66,647	$ 75,506
Income Taxes Paid, Net	58	(1,057)	9
Capital Expenditures Incurred but Not yet Paid	(38,384)	(519)	28,676
Increase (Decrease) in Asset Retirement Obligations	21,778	11,673	54,984
Operating Lease, Payments	7,230	7,603	9,246
Operating Cash Flow from Financing Leases	254	117	156
Finance Lease, Principal Payments	2,039	1,688	1,905
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	17,247	1,457	4,305
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability	$ 4,919	$ 2,109	$ 703
Noncash or Part Noncash Acquisition, Noncash Financial or Equity Instrument Consideration, Shares Issued	293,314	0	1,009,015
Great Western Petroleum, LLC
Supplemental Cash Flow Elements [Line Items]
Business Combination, Recognized Identifiable Asset Acquired and Liability Assumed, Lease Obligation	$ 1,500