CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (USD $) In Thousands, unless otherwise specified	Total	Preferred Stock	Common Stock	Treasury Stock	Additional Paid-in-Capital	Retained Deficit/Accumulated Loss
Balance at Dec. 31, 2012	$ 643,581	$ 3	$ 666		$ 830,003	$ (187,091)
Increase (Decrease) in Stockholders' Equity
Share-based compensation	3,709		20		3,689
Acquisition of treasury stock	(605)			(605)
Net loss	(4,611)					(4,611)
Balance at Jun. 30, 2013	$ 642,074	$ 3	$ 686	$ (605)	$ 833,692	$ (191,702)