Parent Company Condensed Financial Information (Statements Of Cash Flows) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Net income	$ 16,187	$ (68,295)	$ 11,367
Net cash provided by (used in) operating activities	45,134	46,696	94,298
Purchases of available for sale securities	(202,273)	(75,650)	(138,205)
Net cash used in investing activities	285,324	487,071	152,269
Net proceeds from issuance of common stock	127	64	54,315
Preferred stock dividends paid	(4,407)	(1,751)	(3,500)
Common stock dividends			(351)
Net cash provided by (used in) financing activities	(272,268)	(371,374)	(297,918)
Net increase (decrease) in cash and cash equivalents	58,190	162,393	(51,351)
Beginning of year	229,889	67,496	118,847
End of year	288,079	229,889	67,496
Parent Company [Member]
Net income	16,187	(68,295)	11,367
Equity in undistributed income (loss) of subsidiaries	49,173	64,455	(14,602)
Other, net	(5,437)	499	1,310
Net cash provided by (used in) operating activities	59,923	(3,341)	(1,925)
Purchases of available for sale securities	(247)	(724)	(180)
Available for sale securities, Sales/Maturities		46	13
Capital contribution to Banks			(25,000)
Return of capital/advances from other subsidiaries			70
Net cash used in investing activities	(247)	(678)	(25,097)
Net proceeds from issuance of common stock	925	278	54,497
Preferred stock dividends paid	(74,330)	(1,751)	(3,851)
Common stock dividends
Other, net	(76)
Net cash provided by (used in) financing activities	(73,481)	(1,473)	50,646
Net increase (decrease) in cash and cash equivalents	(13,805)	(5,492)	23,624
Beginning of year	32,050	37,542	13,918
End of year	$ 18,245	$ 32,050	$ 37,542