CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Net loss	$ (3,967)	$ (16,631)	$ (13,064)	$ (58,488)
Unrealized gains (losses) on securities:
Holding gains (losses) arising during period, net of tax	176	45	222	1,314
Reclassification adjustment for (gains) losses included in net loss	(2)	(2)	1,469	208
Net unrealized gains (losses) on securities	174	43	1,691	1,522
Total comprehensive loss	$ (3,793)	$ (16,588)	$ (11,373)	$ (56,966)