CONDENSED CONSOLIDATED STATEMENT OF EQUITY - 9 months ended Sep. 30, 2018 - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In- Capital	Treasury Stock	Accumulated Deficit	Stockholders' Equity	Noncontrolling Interest
Balances at beginning of period at Dec. 31, 2017	$ 1,530,291	$ 1,913	$ 4,126,549	$ (56,440)	$ (2,541,294)	$ 1,530,728	$ (437)
Balances at beginning of period (in shares) at Dec. 31, 2017	191,275,928	191,276,000
Compensation expense related to restricted stock grants	$ 20,710		20,710			20,710
Net income (loss)	(659,883)				(659,797)	(659,797)	(86)
Issuance of common stock under Associate Stock Purchase Plan	1,147	$ 1	1,146			1,147
Issuance of common stock under Associate Stock Purchase Plan (in shares)		153,000
Restricted stock, net		$ 29	(29)
Restricted stock, net (in shares)		2,910,000
Shares withheld for employee taxes	(2,844)	$ (4)	(2,840)			(2,844)
Shares withheld for employee taxes (in shares)		(410,000)
Other, net	427		147		280	427
Balances at end of period at Sep. 30, 2018	$ 889,848	$ 1,939	$ 4,145,683	$ (56,440)	$ (3,200,811)	$ 890,371	$ (523)
Balances at end of period (in shares) at Sep. 30, 2018	193,929,249	193,929,000