Consolidated statements of stockholders' equity - USD ($) $ in Thousands	Total	Common stock	Additional paid-in capital	Treasury stock (at cost)	Accumulated deficit
Balance at beginning of year (in shares) at Dec. 31, 2019		11,865,000
Balance at beginning of year at Dec. 31, 2019	$ 841,874	$ 2,373	$ 2,385,355	$ 0	$ (1,545,854)
Balance at beginning of year (in shares) at Dec. 31, 2019				0
Increase (Decrease) in Stockholders' Equity
Reverse stock split	0	$ (2,277)	2,277
Restricted stock awards (in shares)		238,000
Restricted stock awards	0	$ 31	(31)
Restricted stock forfeitures (in shares)		(48,000)
Restricted stock forfeitures	0	$ (2)	2
Stock exchanged for tax withholding (in shares)				35,000
Stock exchanged for tax withholding	(779)			$ (779)
Retirement of treasury stock (in shares)		(35,000)		(35,000)
Retirement of treasury stock	0	$ (5)	(774)	$ 779
Share-settled equity-based compensation	11,635		11,635
Net income (loss)	(874,173)				(874,173)
Balance at end of year (in shares) at Dec. 31, 2020		12,020,000
Balance at end of year at Dec. 31, 2020	(21,443)	$ 120	2,398,464	$ 0	(2,420,027)
Balance at end of year (in shares) at Dec. 31, 2020				0
Increase (Decrease) in Stockholders' Equity
Restricted stock awards (in shares)		237,000
Restricted stock awards	0	$ 2	(2)
Restricted stock forfeitures (in shares)		(42,000)
Stock exchanged for tax withholding (in shares)				53,000
Stock exchanged for tax withholding	(2,596)			$ (2,596)
Retirement of treasury stock (in shares)		(53,000)		(53,000)
Retirement of treasury stock	0	$ 0	(2,596)	$ 2,596
Exercise of stock options (in shares)		2,000
Exercise of stock options	173		173
Share-settled equity-based compensation	9,258		9,258
Issuance of common stock, net of costs (in shares)		1,438,000
Issuance of common stock, net of costs	72,492	$ 14	72,478
Equity issued for acquisition of oil and natural gas properties (in shares)		3,467,000
Equity issued for acquisitions of oil and natural gas properties	310,888	$ 35	310,853
Performance share conversion (in shares)		6,000
Net income (loss)	$ 145,008				145,008
Balance at end of year (in shares) at Dec. 31, 2021	17,074,516	17,075,000
Balance at end of year at Dec. 31, 2021	$ 513,780	$ 171	2,788,628	$ 0	(2,275,019)
Balance at end of year (in shares) at Dec. 31, 2021				0
Increase (Decrease) in Stockholders' Equity
Restricted stock awards (in shares)		255,000
Restricted stock awards	0	$ 3	(3)
Restricted stock forfeitures (in shares)		(58,000)
Restricted stock forfeitures	0	$ (1)	1
Share repurchases (in shares)				491,000
Share repurchases	(37,290)			$ (37,290)
Stock exchanged for tax withholding (in shares)				94,000
Stock exchanged for tax withholding	(7,442)			$ (7,442)
Retirement of treasury stock (in shares)		(585,000)		(585,000)
Retirement of treasury stock	0	$ (6)	(44,726)	$ 44,732
Share-settled equity-based compensation	10,186		10,186
Performance share conversion (in shares)		75,000
Performance share conversion	0	$ 1	(1)
Net income (loss)	$ 631,512				631,512
Balance at end of year (in shares) at Dec. 31, 2022	16,762,127	16,762,000
Balance at end of year at Dec. 31, 2022	$ 1,110,746	$ 168	$ 2,754,085	$ 0	$ (1,643,507)
Balance at end of year (in shares) at Dec. 31, 2022				0