CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Statement Of Income And Comprehensive Income Abstract
NET INCOME (LOSS)	$ (1,049)	$ 1,021
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAXES (BENEFIT):
Net unrealized gain (loss) on investments, net of taxes (benefit)	0	0
Net unrealized gain (loss) on derivatives, net of taxes (benefit)	0	1,989
COMPREHENSIVE INCOME (LOSS)	$ (1,049)	$ 3,010