Tax effects of temporary differences representing the net DTA (DTL) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
DTA, Federal net operating losses (NOLs)	$ 97,142	$ 93,293
DTA, Other loss carryforwards	642	610
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Asset Retirement Obligations	1,306	1,074
DTA, Unrealized share-based compensation	579	959
Deferred Tax Assets, Tax Deferred Expense, Other	3,425	929
Deferred Tax Assets, Derivative Instruments	11,451	0
DTA, Other	2,111	1,029
DTA, Valuation Allowance	(67,578)	(82,618)
Total deferred tax assets	49,078	15,276
Deferred tax liabilities:
DTL, Oil and gas exploration and development costs	(52,219)	(13,008)
Deferred Tax Liabilities, Derivatives	0	(1,653)
Deferred Tax Liabilities, Leasing Arrangements	(3,374)	(917)
DTL, Other	(1)	(1)
Total deferred tax liabilites	55,594	15,579
Net deferred tax liabilities	(6,516)	(303)
State deferred tax liabilities, net	(1,016)	(303)
Federal deferred tax assets, net	$ (5,500)	$ 0