Consolidated Statement of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended			6 Months Ended
	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Net income	$ 10,555	$ 25,080	$ 4,349	$ 35,635	$ 17,843
Available-for-sale Securities, Gross Unrealized Gain (Loss)	13,348	12,928	(27,949)	26,276	(31,667)
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Reclassification Adjustments, Net of Tax	(52)	(2,756)	0	(2,808)	(237)
Other comprehensive (loss) income, net of tax	13,296	10,172	(27,949)	23,468	(31,904)
Comprehensive income	$ 23,851	$ 35,252	$ (23,600)	$ 59,103	$ (14,061)