Allowance for Non-Covered Loan Loss and Credit Quality (Summary Of Reserve For Unfunded Commitments Activity) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Reserve for Unfunded Commitments [Roll Forward]
Balance, beginning of period	$ 1,269	$ 1,102	$ 1,223	$ 940
Net change to other expense	58	24	104	186
Balance, end of period	1,327	1,126	1,327	1,126
Unfunded loan commitments	1,553,657	1,319,085	1,553,657	1,319,085
Commercial Real Estate [Member]
Reserve for Unfunded Commitments [Roll Forward]
Balance, beginning of period	159	97	172	59
Net change to other expense	37	10	24	48
Balance, end of period	196	107	196	107
Unfunded loan commitments	215,824	118,624	215,824	118,624
Commercial [Member]
Reserve for Unfunded Commitments [Roll Forward]
Balance, beginning of period	850	778	807	633
Net change to other expense	5	12	48	157
Balance, end of period	855	790	855	790
Unfunded loan commitments	991,765	896,662	991,765	896,662
Residential [Member]
Reserve for Unfunded Commitments [Roll Forward]
Balance, beginning of period	182	163	173	185
Net change to other expense	18	(1)	27	(23)
Balance, end of period	200	162	200	162
Unfunded loan commitments	292,920	251,031	292,920	251,031
Consumer & Other [Member]
Reserve for Unfunded Commitments [Roll Forward]
Balance, beginning of period	78	64	71	63
Net change to other expense	(2)	3	5	4
Balance, end of period	76	67	76	67
Unfunded loan commitments	$ 53,148	$ 52,768	$ 53,148	$ 52,768