STATEMENTS OF CHANGES IN EQUITY - USD ($) $ in Thousands	Total	Common Stock	Preferred Stock	Treasury Stock	Additional Paid in Capital	Retained Earnings
Balance at beginning of period at Dec. 31, 2019	$ 765,582	$ 533	$ 0	$ (50,576)	$ 243,932	$ 571,693
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(35,761)					(35,761)
Dividends paid	(10,395)					(10,395)
Stock compensation	7,087				7,087
Other	(1,272)	1			(1,273)
Balance at end of period at Dec. 31, 2020	725,241	534	0	(50,576)	249,746	525,537
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	150,881					150,881
Dividends paid	(10,455)					(10,455)
Stock compensation	9,355				9,355
Other	(3,039)	3			(3,042)
Balance at end of period at Dec. 31, 2021	871,983	537	0	(50,576)	256,059	665,963
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	641,298					641,298
Dividends paid	(79,665)					(79,665)
Stock compensation	17,621				17,621
Other	(3,722)	2			(3,724)
Balance at end of period at Dec. 31, 2022	$ 1,447,515	$ 539	$ 0	$ (50,576)	$ 269,956	$ 1,227,596