Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balance at Dec. 31, 2021	$ 732,021	$ 108,610	$ 623,465	$ (54)
Balance, Shares at Dec. 31, 2021		24,260,000
Net income	18,793		18,793
Share-based compensation	1,760	$ 1,760
Common stock issued under stock Plans, net of shares withheld for employee taxes, Shares		75,000
Taxes paid related to net share settlement of stock awards	(3,605)	$ (3,605)
Dividends accrued of $0.465 and $0.455 per share for three months ended March 31, 2023, and three months ended March 31, 2022	(11,084)		(11,084)
Other comprehensive income (loss)	3			3
Balance at Mar. 31, 2022	737,888	$ 106,765	631,174	(51)
Balance, Shares at Mar. 31, 2022		24,335,000
Balance at Dec. 31, 2022	$ 803,945	$ 110,080	693,943	(78)
Balance, Shares at Dec. 31, 2022	24,388,000	24,388,000
Net income	$ 71,657		71,657
Share-based compensation	1,493	$ 1,493
Common stock issued under stock Plans, net of shares withheld for employee taxes, Shares		78,000
Taxes paid related to net share settlement of stock awards	(6,086)	$ (6,086)
Dividends accrued of $0.465 and $0.455 per share for three months ended March 31, 2023, and three months ended March 31, 2022	(11,453)		(11,453)
Other comprehensive income (loss)	(18)			(18)
Balance at Mar. 31, 2023	$ 859,538	$ 105,487	$ 754,147	$ (96)
Balance, Shares at Mar. 31, 2023	24,466,000	24,466,000