Segment Information (Schedule Of Operating Results By Segment) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 segments	Sep. 30, 2012	Dec. 31, 2012
Segment Reporting Information [Line Items]
Number of Operating Segments			3
Net interest income	$ 54,960	$ 58,016	$ 165,125	$ 178,424
Provision for loan losses	2,498	16,655	3,500	30,231
Other income and security gains	17,396	18,079	55,499	53,040
Gain on sale of the Vision business	0		0	22,167
Noninterest Expense	44,715	45,683	137,383	139,957
Income (loss) before income taxes	25,143	13,757	79,741	83,443
Income Tax Expense (Benefit)	6,114	1,775	19,968	21,100
Net income	19,029	11,982	59,773	62,343
Assets	6,705,891	6,752,938	6,705,891	6,752,938	6,642,803
PNB [Member]
Segment Reporting Information [Line Items]
Net interest income	52,348	55,366	156,819	167,234
Provision for loan losses	6,339	4,125	11,591	12,553
Other income and security gains	16,756	18,150	53,164	52,511
Noninterest Expense	39,860	39,609	120,592	114,925
Income (loss) before income taxes	22,905	29,782	77,800	92,267
Income Tax Expense (Benefit)	5,656	7,714	20,289	25,155
Net income	17,249	22,068	57,511	67,112
Assets	6,588,368	6,601,785	6,588,368	6,601,785
GFSC [Member]
Segment Reporting Information [Line Items]
Net interest income	2,204	2,371	6,575	6,887
Provision for loan losses	355	184	775	634
Other income and security gains	6		5
Noninterest Expense	730	693	2,326	2,120
Income (loss) before income taxes	1,125	1,494	3,479	4,133
Income Tax Expense (Benefit)	394	523	1,218	1,447
Net income	731	971	2,261	2,686
Assets	50,047	49,921	50,047	49,921
SEPH [Member]
Segment Reporting Information [Line Items]
Net interest income	(462)	(888)	(1,464)	597
Provision for loan losses	(4,196)	12,346	(8,866)	17,044
Other income and security gains	525	(191)	2,001	258
Gain on sale of the Vision business				22,167
Noninterest Expense	2,270	4,008	9,523	18,172
Income (loss) before income taxes	1,989	(17,433)	(120)	(12,194)
Income Tax Expense (Benefit)	696	(6,102)	(42)	(4,282)
Net income	1,293	(11,331)	(78)	(7,912)
Assets	77,270	116,192	77,270	116,192
All Other [Member]
Segment Reporting Information [Line Items]
Net interest income	870	1,167	3,195	3,706
Provision for loan losses
Other income and security gains	109	120	329	271
Noninterest Expense	1,855	1,373	4,942	4,740
Income (loss) before income taxes	(876)	(86)	(1,418)	(763)
Income Tax Expense (Benefit)	(632)	(360)	(1,497)	(1,220)
Net income	(244)	274	79	457
Assets	$ (9,794)	$ (14,960)	$ (9,794)	$ (14,960)