Segment Information (Schedule Of Operating Results By Segment) (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) segments	Jun. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Segment Reporting Information [Line Items]
Number of Operating Segments | segments			3
Net interest income	$ 57,485	$ 56,515	$ 117,304	$ 112,050
Provision for (recovery of) loan losses	2,637	1,612	3,547	3,244
Other income and security gains	18,736	19,191	36,125	38,064
Total other expense	45,306	44,667	95,205	90,387
Income (loss) before income taxes	28,278	29,427	54,677	56,483
Income Tax Expense (Benefit)	8,280	8,388	15,993	16,400
Net Income	19,998	21,039	38,684	40,083
Assets	7,431,610	7,309,569	7,431,610	7,309,569	$ 7,311,354
PNB [Member]
Segment Reporting Information [Line Items]
Net interest income	56,006	54,766	113,161	108,587
Provision for (recovery of) loan losses	1,362	2,720	2,895	4,742
Other income and security gains	18,508	18,720	35,731	36,732
Total other expense	42,731	39,586	84,091	81,518
Income (loss) before income taxes	30,421	31,180	61,906	59,059
Income Tax Expense (Benefit)	9,343	9,847	19,084	18,567
Net Income	21,078	21,333	42,822	40,492
Assets	7,351,293	7,223,801	7,351,293	7,223,801
GFSC [Member]
Segment Reporting Information [Line Items]
Net interest income	1,440	1,679	2,944	3,371
Provision for (recovery of) loan losses	1,444	309	1,971	804
Other income and security gains		(1)		1
Total other expense	(966)	759	2,832	1,538
Income (loss) before income taxes	962	610	(1,859)	1,030
Income Tax Expense (Benefit)	336	203	(649)	342
Net Income	626	407	(1,210)	688
Assets	32,546	37,124	32,546	37,124
SEPH [Member]
Segment Reporting Information [Line Items]
Net interest income	71	(14)	1,232	(102)
Provision for (recovery of) loan losses	(169)	(1,417)	(1,319)	(2,302)
Other income and security gains	112	327	146	1,087
Total other expense	1,332	2,385	2,736	3,483
Income (loss) before income taxes	(980)	(655)	(39)	(196)
Income Tax Expense (Benefit)	(343)	(229)	(14)	(68)
Net Income	(637)	(426)	(25)	(128)
Assets	32,822	38,873	32,822	38,873
All Other [Member]
Segment Reporting Information [Line Items]
Net interest income	(32)	84	(33)	194
Other income and security gains	116	145	248	244
Total other expense	2,209	1,937	5,546	3,848
Income (loss) before income taxes	(2,125)	(1,708)	(5,331)	(3,410)
Income Tax Expense (Benefit)	(1,056)	(1,433)	(2,428)	(2,441)
Net Income	(1,069)	(275)	(2,903)	(969)
Assets	$ 14,949	$ 9,771	$ 14,949	$ 9,771