Segment Information (Schedule Of Operating Results By Segment) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 segments	Jun. 30, 2013	Dec. 31, 2013
Segment Reporting Information [Line Items]
Number of Operating Segments			3
Net interest income	$ 56,561	$ 54,712	$ 111,041	$ 110,165
Provision for loan losses	(1,260)	673	(3,485)	1,002
Other income and security gains	19,671	19,298	36,319	38,103
Total other expense	48,196	46,570	95,894	92,668
Income (loss) before income taxes	29,296	26,767	54,951	54,598
Income Tax Expense (Benefit)	7,469	6,733	13,505	13,854
Net income	21,827	20,034	41,446	40,744
Assets	6,789,173	6,640,473	6,789,173	6,640,473	6,638,347
PNB [Member]
Segment Reporting Information [Line Items]
Net interest income	55,290	51,736	108,389	104,471
Provision for loan losses	1,683	2,122	1,543	5,252
Other income and security gains	18,909	18,536	34,612	36,408
Total other expense	41,979	40,408	84,290	80,732
Income (loss) before income taxes	30,537	27,742	57,168	54,895
Income Tax Expense (Benefit)	8,348	7,420	15,372	14,633
Net income	22,189	20,322	41,796	40,262
Assets	6,685,849	6,519,766	6,685,849	6,519,766
GFSC [Member]
Segment Reporting Information [Line Items]
Net interest income	1,863	2,238	3,841	4,371
Provision for loan losses	315	210	589	420
Other income and security gains		(3)	1	(1)
Total other expense	812	810	1,587	1,596
Income (loss) before income taxes	736	1,215	1,666	2,354
Income Tax Expense (Benefit)	258	425	584	824
Net income	478	790	1,082	1,530
Assets	42,569	50,307	42,569	50,307
SEPH [Member]
Segment Reporting Information [Line Items]
Net interest income	(98)	(347)	(293)	(1,002)
Provision for loan losses	(3,258)	(1,659)	(5,617)	(4,670)
Other income and security gains	876	645	1,713	1,476
Total other expense	3,413	3,909	5,934	7,253
Income (loss) before income taxes	623	(1,952)	1,103	(2,109)
Income Tax Expense (Benefit)	218	(683)	386	(738)
Net income	405	(1,269)	717	(1,371)
Assets	57,890	78,993	57,890	78,993
All Other [Member]
Segment Reporting Information [Line Items]
Net interest income	(494)	1,085	(896)	2,325
Provision for loan losses
Other income and security gains	(114)	120	(7)	220
Total other expense	1,992	1,443	4,083	3,087
Income (loss) before income taxes	(2,600)	(238)	(4,986)	(542)
Income Tax Expense (Benefit)	(1,355)	(429)	(2,837)	(865)
Net income	(1,245)	191	(2,149)	323
Assets	$ 2,865	$ (8,593)	$ 2,865	$ (8,593)