CONDENSED STATEMENTS OF CHANGES IN STOCKHOLDERS’ 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		$ 533	$ 0	$ (50,576)	$ 243,932	$ 571,693
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of shares		0
Stock compensation					1,605
Other					(1,012)
Net (loss) income	$ 21,545					21,545
Dividends paid						(2,598)
Balance at end of period at Mar. 31, 2020	785,122	533	0	(50,576)	244,525	590,640
Balance at beginning of period at Dec. 31, 2020	725,241	534	0	(50,576)	249,746	525,537
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of shares		2
Stock compensation					1,567
Other					(2,539)
Net (loss) income	(21,355)					(21,355)
Dividends paid						(2,613)
Balance at end of period at Mar. 31, 2021	$ 700,303	$ 536	$ 0	$ (50,576)	$ 248,774	$ 501,569