CONDENSED CONSOLIDATED STATEMENT OF EQUITY (USD $) In Thousands, unless otherwise specified	Total	Common Stock	Capital Surplus	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)
Balances at Dec. 31, 2012	$ (42,824)	$ 11,825	$ 2,541,859	$ (2,575,994)	$ (20,514)
Balances (in shares) at Dec. 31, 2012		118,245,320
Increase (Decrease) in Shareholders' Equity
Employee stock purchase plan	227	5	222
Employee stock purchase plan (in shares)		54
Restricted stock issued, net of forfeitures	0	110	(110)
Restricted stock issued, net of forfeitures (in shares)		1,105
Amortization of stock-based compensation	5,944		5,944
Other, net	(492)	(7)	(485)
Other, net (in shares)		(74)
Net loss	(67,948)			(67,948)
Other comprehensive income	342				342
Balances at Mar. 31, 2013	$ (104,751)	$ 11,933	$ 2,547,430	$ (2,643,942)	$ (20,172)
Balances (in shares) at Mar. 31, 2013		119,330,398