Consolidated Statements of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Retained Loss	Treasury Stock
Beginning Balances at Dec. 31, 2015	$ (2,991,937)	$ 502,050	$ (3,493,811)	$ (176)
Beginning Balances, Shares at Dec. 31, 2015		79,933
Employee stock plan grants		145
Shares re-issued from treasury			(127)	127
Net share settlements	(378)		(378)
Net share settlements, Shares		(61)
Fair value of employee stock plan grants	8,013	$ 8,013
Net income	56,151		56,151
Ending Balances at Dec. 31, 2016	(2,928,151)	$ 510,063	(3,438,165)	(49)
Ending Balances, Shares at Dec. 31, 2016		80,017
Equitization of Holdco Notes	978,230	$ 978,230
Equitization of Holdco Notes, Shares		70,579
Rights Offering, including Backstop	573,774	$ 573,774
Rights Offering, including Backstop, Shares		44,390
Employee stock plan grants		10
Stock plan grants	26,673	$ 26,673
Stock plan grants, Shares		2,192
Net share settlements	(9,581)		(9,581)
Net share settlements, Shares		(841)
Fair value of employee stock plan grants	19,691	$ 19,691
Net income	81,611		81,611
Ending Balances at Sep. 30, 2017	$ (1,257,753)	$ 2,108,431	$ (3,366,135)	$ (49)
Ending Balances, Shares at Sep. 30, 2017		196,347