CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) shares in Thousands, $ in Thousands	Preferred Stock Mandatory Convertible Preferred Shares	Common Stock Cumulative Effect, Period of Adoption, Adjusted Balance	Common Stock	Capital in Excess of Par Cumulative effect period of adoption adjustment	Capital in Excess of Par Cumulative Effect, Period of Adoption, Adjusted Balance	Capital in Excess of Par	Accumulated Other Comprehensive Income (Loss) Cumulative Effect, Period of Adoption, Adjusted Balance	Accumulated Other Comprehensive Income (Loss)	Retained Earnings (Accumulated Loss) Cumulative effect period of adoption adjustment	Retained Earnings (Accumulated Loss) Cumulative Effect, Period of Adoption, Adjusted Balance	Retained Earnings (Accumulated Loss)	Treasury Shares Cumulative Effect, Period of Adoption, Adjusted Balance	Treasury Shares	Non-controlling Interest Cumulative Effect, Period of Adoption, Adjusted Balance	Non-controlling Interest	Cumulative effect period of adoption adjustment	Cumulative Effect, Period of Adoption, Adjusted Balance	Total
Beginning Balance at Dec. 31, 2020	$ 5		$ 419			$ 3,423,935		$ (11,124)			$ (946,100)		$ (1,315,751)		$ 105,424			$ 1,256,808
Beginning Balance (in shares) at Dec. 31, 2020	4,870		8,383
Increase (Decrease) in Equity
Net income (loss)											(333,095)				14,390			(318,705)
PSU distribution equivalent rights											(10)							(10)
Dividends declared to preferred shareholders											(3,653)							(3,653)
Issuance of warrants on common shares											(2,719)							(2,719)
Other comprehensive income (loss), net of tax								2,500										2,500
Share-based compensation						10,740												10,740
Conversion of preferred shares	$ (5)
Conversion of preferred shares (in shares)	(4,870)
Conversion of preferred shares			$ 34			(34)												(5)
Conversion of preferred shares (in shares)			668
Noncontrolling interest contributions (distributions)															(1,790)			(1,790)
Accrued distribution on redeemable noncontrolling interest in subsidiary											(4,732)							(4,732)
Other			$ 6			(1,497)												(1,491)
Other (in shares)			130
Ending Balance at Jun. 30, 2021	$ 0		$ 459			3,433,144		(8,624)			(1,290,309)		(1,315,751)		118,024			936,943
Ending Balance (in shares) at Jun. 30, 2021	0		9,181
Beginning Balance at Mar. 31, 2021	$ 5		$ 417			3,429,089		(10,756)			(1,089,251)		(1,315,751)		114,201			1,127,954
Beginning Balance (in shares) at Mar. 31, 2021	4,870		8,503
Increase (Decrease) in Equity
Net income (loss)											(196,009)				5,614			(190,395)
Issuance of warrants on common shares											(2,719)							(2,719)
Other comprehensive income (loss), net of tax								2,132										2,132
Share-based compensation						3,965												3,965
Conversion of preferred shares	$ (5)
Conversion of preferred shares (in shares)	(4,870)
Conversion of preferred shares			$ 34			(34)												(5)
Conversion of preferred shares (in shares)			668
Noncontrolling interest contributions (distributions)															(1,791)			(1,791)
Accrued distribution on redeemable noncontrolling interest in subsidiary											(2,330)							(2,330)
Other			$ 8			124												132
Other (in shares)			10
Ending Balance at Jun. 30, 2021	$ 0		$ 459			3,433,144		(8,624)			(1,290,309)		(1,315,751)		118,024			936,943
Ending Balance (in shares) at Jun. 30, 2021	0		9,181
Beginning Balance at Dec. 31, 2021			$ 466			3,454,563		(10,634)			(1,537,988)		(1,315,751)		128,282			718,938
Beginning Balance (in shares) at Dec. 31, 2021			9,295
Increase (Decrease) in Equity
Net income (loss)											(267,413)				22,810			(244,603)
PSU distribution equivalent rights											(64)							(64)
Warrant Exercise, net of tax			$ 52			152,451												152,503
Warrant Exercise, net of tax (in shares)			1,051
Other comprehensive income (loss), net of tax								678										678
Share-based compensation						7,830												7,830
Noncontrolling interest contributions (distributions)															(3,490)			(3,490)
Accrued distribution on redeemable noncontrolling interest in subsidiary											(5,119)							(5,119)
Other			$ 7			(4,523)					(175)							(4,691)
Other (in shares)			163
Ending Balance at Jun. 30, 2022		$ 466	$ 525	$ (81,881)	$ 3,372,682	3,528,440	$ (10,634)	(9,956)	$ 60,701	$ (1,477,287)	(1,750,058)	$ (1,315,751)	(1,315,751)	$ 128,282	147,602	$ (21,180)	$ 697,758	600,802
Ending Balance (in shares) at Jun. 30, 2022		9,295	10,509
Beginning Balance at Mar. 31, 2022			$ 523			3,519,014		(9,298)			(1,664,512)		(1,315,751)		137,114			667,090
Beginning Balance (in shares) at Mar. 31, 2022			10,475
Increase (Decrease) in Equity
Net income (loss)											(82,917)				12,982			(69,935)
PSU distribution equivalent rights											(55)							(55)
Warrant Exercise, net of tax						5,475												5,475
Warrant Exercise, net of tax (in shares)			27
Other comprehensive income (loss), net of tax								(658)										(658)
Share-based compensation						3,951												3,951
Noncontrolling interest contributions (distributions)															(2,494)			(2,494)
Accrued distribution on redeemable noncontrolling interest in subsidiary											(2,574)							(2,574)
Other			$ 2															2
Other (in shares)			7
Ending Balance at Jun. 30, 2022		$ 466	$ 525	$ (81,881)	$ 3,372,682	$ 3,528,440	$ (10,634)	$ (9,956)	$ 60,701	$ (1,477,287)	$ (1,750,058)	$ (1,315,751)	$ (1,315,751)	$ 128,282	$ 147,602	$ (21,180)	$ 697,758	$ 600,802
Ending Balance (in shares) at Jun. 30, 2022		9,295	10,509