Earnings Per Share - Reconciliation Between Basic and Diluted Computations (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	1 Months Ended	3 Months Ended		5 Months Ended	6 Months Ended
	Feb. 08, 2019	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
A reconciliation between basic and diluted earnings per share computations
Net Income (Loss) available to common stockholders	$ 261,727	$ (761)	$ (2,611)	$ (24)	$ (4,823)
Net loss available to common stockholders	243,133			(24)
Gain on cancellation of Preferred Shares	(14,650)
Preferred shares, effect of dilutive securities	0
Restricted shares, Effect of dilutive securities	(3,944)	0		0
Attributable to participating securities	3,944
Attributable to participating securities, effect of dilutive securities	186	0	0	0	0
Stock options			0		0
DILUTED EPS, Income (Loss)	$ 243,319	$ (761)	$ (2,611)	$ (24)	$ (4,823)
Net income (loss) available to common stockholders (in shares)	25,587	9,371	25,568	9,371	25,554
Restricted stock, effect of dilutive securities (in shares)	415	0		0	0
Attributable to participating securities, effect of dilutive securities (in shares)	0	0	0	0	0
Preferred shares, effect of dilutive securities (in shares)	1,287
Stock options (in shares)			0
DILUTED EPS (in shares)	27,289	9,371	25,568	9,371	25,554
Net income (loss) available to common stockholders (in dollars per share)	$ 9.50	$ (0.08)	$ (0.10)	$ 0.00	$ (0.19)
DILUTED EPS (in dollars per share)	$ 8.92	$ (0.08)	$ (0.10)	$ 0.00	$ (0.19)