Consolidated Statements of Comprehensive Income (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 income	$ 4,020	$ 4,250	$ 10,103	$ 8,744
Other comprehensive income (loss), net of tax	1,942	(10,534)	2,519	(999)
Comprehensive income (loss), net of tax	$ 5,962	$ (6,284)	$ 12,622	$ 7,745