Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net Income	$ 68,069	$ 74,042	$ 39,812
Change in fair value of available-for-sale securities	(113,343)	75,377	11,408
Reclassification adjustment for gain on sale of investments, net included in statement of income	(3,354)	(5,319)	(2,096)
Change in fair value of cash flow hedges	16,381	(28,740)	(34,228)
Reclassification adjustment for cash flows hedges included in statement of income	13,989	14,448	11,604
Other comprehensive income (loss)	(86,327)	55,766	(13,312)
Total comprehensive income	(18,258)	129,808	26,500
Preferred Stock Dividends	(7,902)	(2,036)	0
Comprehensive Income to Common Shareholders	$ (26,160)	$ 127,772	$ 26,500