CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) [Abstract]
Net loss	$ (12,081)	$ (10,126)	$ (43,361)	$ (11,798)
Unrealized (losses) gains on securities, net of tax	(4,456)	9,202	3,806	15,669
Reclassification adjustment for realized losses (gains) included in net loss	175	0	(167)	(1,163)
Comprehensive (loss) income	$ (16,362)	$ (924)	$ (39,722)	$ 2,708