Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Earnings Per Share Reconciliation [Abstract]
Earnings from continuing operations	$ 79,869	$ (105,162)	$ 122,159	$ 28,571
fair value adjustment to warrants, net of tax	(25,816)	0	(31,171)	(19,312)
Undistributed Earnings (Loss) from Continuing Operations Available to Common Shareholders, Diluted	$ 54,053	$ (105,162)	$ 90,988	$ 9,259
Weighted-average shares outstanding for basic earnings per share (in shares)	68,206,000	59,130,000	63,851,000	59,085,000
Restricted stock (in shares)			482,300	365,100
Common equivalent shares:
Effect of stock-based compensation awards (in shares)	4,758,000	0	9,998,000	9,019,000
Weighted-average shares outstanding assuming dilution (in shares)	72,964,000	59,130,000	73,849,000	68,104,000
Basic earnings per share from continuing operations (in dollars per share)	$ 1.17	$ (1.78)	$ 1.91	$ 0.48
Diluted earnings per share from continuing operations (in dollars per share)	$ 0.74	$ (1.78)	$ 1.23	$ 0.14