Earnings (Losses) Per Share (Details) $ / shares in Units, shares in Thousands, $ in Thousands			3 Months Ended		6 Months Ended
	Apr. 22, 2020	Apr. 20, 2020	Jun. 30, 2020 USD ($) $ / shares shares	Jun. 30, 2019 USD ($) $ / shares shares	Jun. 30, 2020 USD ($) $ / shares shares	Jun. 30, 2019 USD ($) $ / shares shares
Net income (loss) (numerator):
Income (loss) from continuing operations, net of tax			$ (137,968)	$ (192,801)	$ (512,237)	$ (296,177)
Less: net (income) loss attributable to noncontrolling interest			(10,167)	(10,729)	(27,632)	(24,905)
Less: preferred stock dividends			(3,653)	(4,312)	(7,305)	(8,625)
Less: accrued distribution on redeemable noncontrolling interest in subsidiary			(4,307)	(5,119)	(8,739)	(10,182)
Less: distributed and undistributed earnings allocated to unvested shareholders				(115)	(125)	(233)
Adjusted income (loss) from continuing operations, net of tax - basic			(156,095)	(213,076)	(556,038)	(340,122)
Income (loss) from discontinued operations, net of tax			$ 23	$ (34)	$ (70)	$ (191)
Weighted-average number of shares outstanding - basic | shares			7,052	7,031	7,052	7,023
Earnings (losses) Per Share:
Basic from continuing operations (in dollars per share) | $ / shares			$ (22.13)	$ (30.31)	$ (78.85)	$ (48.43)
Basic from discontinued operations (in dollars per share) | $ / shares					(0.01)	(0.03)
Total Basic (in dollars per share) | $ / shares			$ (22.13)	$ (30.31)	$ (78.86)	$ (48.46)
DILUTED EPS:
Adjusted income (loss) from continuing operations, net of tax - basic			$ (156,095)	$ (213,076)	$ (556,038)	$ (340,122)
Adjusted income (loss) from continuing operations, net of tax - diluted			(156,095)	(213,076)	(556,038)	(340,122)
Income (loss) from discontinued operations, net of tax			$ 23	$ (34)	$ (70)	$ (191)
Weighted-average number of shares outstanding - basic | shares			7,052	7,031	7,052	7,023
Weighted-average number of shares outstanding - diluted | shares			7,052	7,031	7,052	7,023
Earnings (losses) per share:
Diluted from continuing operations (in dollars per share) | $ / shares			$ (22.13)	$ (30.31)	$ (78.85)	$ (48.43)
Diluted from discontinued operations (in dollars per share) | $ / shares					(0.01)	(0.03)
Total Diluted (in dollars per share) | $ / shares			$ (22.13)	$ (30.31)	$ (78.86)	$ (48.46)
Interest rate on senior notes due (as a percent)			7.25%		7.25%
Reverse stock split ratio	50	50
Minimum
Earnings (losses) per share:
Reverse stock split ratio		15
0.75% senior exchangeable notes due January 2024
Earnings (losses) per share:
Aggregate amount of senior notes			$ 575,000		$ 575,000
Interest rate on senior notes due (as a percent)			0.75%		0.75%
0.75% senior exchangeable notes due January 2024 | Minimum
Earnings (losses) per share:
Share issued price (in dollars per share) | $ / shares			$ 1,257.81		$ 1,257.81