Covered Assets and Indemnification Asset (Summary Of Activity In Covered Other Real Estate Owned) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Mar. 31, 2013	Mar. 31, 2012
Covered Assets and Indemnification Asset [Roll Forward]
Balance, beginning of period			$ 10,374	$ 19,491	$ 3,484	$ 9,191
Additions to covered OREO	0	1,881	2,554	3,227
Dispositions of covered OREO	(480)	(2,192)	9,245	10,492
Valuation adjustments in the period	(24)	(769)	(703)	(4,115)
Balance, end of period	$ 2,980	$ 8,111	$ 2,980	$ 8,111	$ 3,484	$ 9,191