Consolidated Statements Of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Consolidated Statements Of Comprehensive Income [Abstract]
Net income (loss)	$ 16,187	$ (68,295)	$ 11,367
Other comprehensive income:
Unrealized holding gain on available for sale securities	(133)	4,659	2,729
Reclassification adjustment for net gains arising during the period	(100)		(2,661)
Change in fair value of derivative used for cash flow hedge	(361)	(2,834)
Other comprehensive income, before tax	(594)	1,825	68
Tax (expense) benefit related to items of other comprehensive income	211	(693)	(34)
Other comprehensive income (loss), net of tax	(383)	1,132	34
Comprehensive income (loss)	$ 15,804	$ (67,163)	$ 11,401