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Income Taxes - Significant Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deferred tax assets:
Net operating loss carryforwards	$ 22,402	$ 40,846
Accruals	10,728	11,731
Asset retirement obligations	48,994	44,437
Derivative instruments	2,280	12,776
Tax credits	88,908	61,044
Other	2,882	3,551
Subtotal	176,194	174,385
Valuation allowance	0	(77,546)
Total deferred tax assets	176,194	96,839
Deferred tax liabilities:
Book tax differences in property basis	(133,350)	(98,670)
Total deferred tax liabilities	(133,350)	(98,670)
Net deferred tax asset	$ 42,844
Net deferred tax liability		$ (1,831)

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