Earnings Per Share of Common Stock EPS Calculation - Diluted (Details) - USD ($)	3 Months Ended																4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2019	[1]	Sep. 30, 2019	[1]	Jun. 30, 2019	[1]	Mar. 31, 2019	[1]	Dec. 31, 2018	[1]	Sep. 30, 2018	[1]	Jun. 30, 2018	[1]	Mar. 31, 2018	[1]	Dec. 31, 2017	Aug. 31, 2017	Dec. 31, 2019	Dec. 31, 2018
Earnings Per Share [Abstract]
Diluted (loss) earnings per share of common stock from continuing operations	$ (0.06)		$ (0.69)		$ 0.63		$ (0.26)		$ (1.43)		$ (7.54)		$ 0.49		$ (0.60)		$ 2.34	$ 0.40	$ (0.38)	$ (9.08)
Diluted (loss) earnings per share of common stock from discontinued operations																	$ (0.76)	$ 1.59	$ (0.90)	$ 2.32
Diluted (loss) earnings per share of common stock																	$ 1.58	$ 1.99	$ (1.28)	$ (6.76)

[1] Earnings per share for the year may not equal the sum of quarterly earnings per share due to rounding and the changes in average share calculations.