Quarterly Financial Data (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Revenues	$ 104,880	$ 115,700
Operating Income (Loss)	15,809	23,678
Net Income (Loss) Attributable to Parent	(7,814)	(2,647)
Net Income (Loss) Available to Common Stockholders, Basic	$ (34,984)	$ (36,609)
Earnings Per Share, Basic	$ (0.62)	$ (0.73)
Weighted Average Number of Shares Outstanding, Diluted	56,255	50,033