Net Income Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023
Number of outstanding units not included in computation of Diluted EPS (in shares)				78,000				375,000
Numerator:
Net income	$ 89,709	$ 75,578	$ 60,298	$ 23,478	$ 15,419	$ (22,071)	$ 225,585	$ 16,826
Denominator:
Basic earnings per share weighted average shares	40,253,000			41,826,000			40,244,000	45,018,000
Dilutive effect of employee stock awards and warrants	1,308,000			754,000			1,251,000	522,000
Diluted earnings per share weighted average shares	41,561,000			42,580,000			41,495,000	45,540,000
Basic earnings per share (in dollars per share)	$ 2.23			$ 0.56			$ 5.61	$ 0.37
Diluted earnings per share (in dollars per share)	$ 2.16			$ 0.55			$ 5.44	$ 0.37
Performance Share Units (PSUs)
Number of outstanding units not included in computation of Diluted EPS (in shares)							336,000	422,000