Fresh Start Accounting - Property, Plant, and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Nov. 19, 2020
Reorganization, Chapter 11 [Line Items]
Oil and gas properties	$ 5,120,121	$ 1,395,837	$ 795,247
Less: accumulated depreciation, depletion and amortization	(481,751)	(124,386)	0
Other property and equipment	72,973	48,981	44,999
Less: Accumulated depreciation and impairment	20,576	17,109
Other property and equipment, net	52,397	31,872
Total property, plant and equipment, net	$ 4,711,343	$ 1,320,432	840,246
Fair Value
Reorganization, Chapter 11 [Line Items]
Other property and equipment			44,999
Less: Accumulated depreciation and impairment			0
Other property and equipment, net			44,999
Total property, plant and equipment, net			840,246
Historical Book Value
Reorganization, Chapter 11 [Line Items]
Other property and equipment			105,410
Less: Accumulated depreciation and impairment			73,200
Other property and equipment, net			32,210
Total property, plant and equipment, net			1,073,941
Proved Oil and Gas Properties | Fair Value
Reorganization, Chapter 11 [Line Items]
Oil and gas properties			755,247
Less: accumulated depreciation, depletion and amortization			0
Total property, plant and equipment, net			755,247
Proved Oil and Gas Properties | Historical Book Value
Reorganization, Chapter 11 [Line Items]
Oil and gas properties			9,126,507
Less: accumulated depreciation, depletion and amortization			(8,259,334)
Total property, plant and equipment, net			867,173
Unproved oil and gas properties | Fair Value
Reorganization, Chapter 11 [Line Items]
Oil and gas properties			40,000
Unproved oil and gas properties | Historical Book Value
Reorganization, Chapter 11 [Line Items]
Oil and gas properties			$ 174,558