CONDENSED CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Total	Common stock:	Additional paid-in-capital:	Treasury stock:	Accumulated deficit:	Noncontrolling interest:
Balance at beginning of period at Dec. 31, 2020	$ 802,729	$ 1,983	$ 4,212,409	$ (102,774)	$ (3,311,184)	$ 2,295
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Restricted stock and restricted stock units, net		(1)	1
Shares withheld for employee taxes		(7)	(4,765)
Non-cash stock-based compensation expense			12,878
Issuance of common stock under Associate Stock Purchase Plan			571
Other, net			18
Net income (loss)	(17,644)				(17,588)	(56)
Balance at end of period at Sep. 30, 2021	793,780	$ 1,975	4,221,112	(102,774)	(3,328,772)	2,239
Balance at beginning of period (in shares) at Dec. 31, 2020		187,804,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock under Associate Stock Purchase Plan (in shares)		97,000
Restricted stock and restricted stock units, net (in shares)		(138,000)
Shares withheld for employee taxes (in shares)		(804,000)
Balances at end of period (in shares) at Sep. 30, 2021		186,959,000
Balance at beginning of period at Jun. 30, 2021	616,135	$ 1,977	4,217,728	(102,774)	(3,503,054)	2,258
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Restricted stock and restricted stock units, net		(2)	2
Shares withheld for employee taxes			(328)
Non-cash stock-based compensation expense			3,568
Issuance of common stock under Associate Stock Purchase Plan			134
Other, net			8
Net income (loss)	174,263				174,282	(19)
Balance at end of period at Sep. 30, 2021	793,780	$ 1,975	4,221,112	(102,774)	(3,328,772)	2,239
Balance at beginning of period (in shares) at Jun. 30, 2021		187,139,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock under Associate Stock Purchase Plan (in shares)		24,000
Restricted stock and restricted stock units, net (in shares)		(161,000)
Shares withheld for employee taxes (in shares)		(43,000)
Balances at end of period (in shares) at Sep. 30, 2021		186,959,000
Balance at beginning of period at Dec. 31, 2021	699,623	$ 1,975	4,208,675	(102,774)	(3,410,474)	2,221
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Restricted stock and restricted stock units, net		9	(9)
Shares withheld for employee taxes		(6)	(4,276)
Non-cash stock-based compensation expense			10,907
Net income (loss)	(212,689)				(212,790)	101
Noncontrolling interest distribution						(760)
Balance at end of period at Sep. 30, 2022	$ 492,799	$ 1,978	4,215,297	(102,774)	(3,623,264)	1,562
Balance at beginning of period (in shares) at Dec. 31, 2021	186,957,793	186,958,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Restricted stock and restricted stock units, net (in shares)		915,000
Shares withheld for employee taxes (in shares)		(617,000)
Balances at end of period (in shares) at Sep. 30, 2022	187,255,531	187,256,000
Balance at beginning of period at Jun. 30, 2022	$ 518,567	$ 1,978	4,211,931	(102,774)	(3,594,905)	2,337
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares withheld for employee taxes			(37)
Non-cash stock-based compensation expense			3,403
Net income (loss)	(28,374)				(28,359)	(15)
Noncontrolling interest distribution						(760)
Balance at end of period at Sep. 30, 2022	$ 492,799	$ 1,978	$ 4,215,297	$ (102,774)	$ (3,623,264)	$ 1,562
Balance at beginning of period (in shares) at Jun. 30, 2022		187,256,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Restricted stock and restricted stock units, net (in shares)		8,000
Shares withheld for employee taxes (in shares)		(8,000)
Balances at end of period (in shares) at Sep. 30, 2022	187,255,531	187,256,000