Loans (Information By Class Related To Individually Impaired Loans) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment		$ 319,322	$ 348,515	$ 319,322	$ 348,515
Unpaid Principal Balance		371,598	405,308	371,598	405,308
Related Allowance		52,151	72,980	52,151	72,980
Average Recorded Investment		316,045	348,644	313,222	347,253
Interest Income Recognized		1,701	1,709	3,138	3,369
Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment		59,745	68,843	59,745	68,843
Unpaid Principal Balance		77,455	88,577	77,455	88,577
Related Allowance		4,510	13,562	4,510	13,562
Average Recorded Investment		56,581	67,341	51,525	64,065
Interest Income Recognized		318	276	431	566
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment		259,577	279,672	259,577	279,672
Unpaid Principal Balance		294,143	316,731	294,143	316,731
Related Allowance		47,641	59,418	47,641	59,418
Average Recorded Investment		259,464	281,303	261,697	283,188
Interest Income Recognized		1,383	1,433	2,707	2,803
Impaired Loans With No Related Allowance Recorded [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment		16,757	16,589	16,757	16,589
Unpaid Principal Balance		31,530	26,952	31,530	26,952
Related Allowance		0	0	0	0
Average Recorded Investment		15,801	17,214	13,746	17,875
Interest Income Recognized		0	0	0	0
Impaired Loans With No Related Allowance Recorded [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment		19,698	23,939	19,698	23,939
Unpaid Principal Balance		37,435	45,418	37,435	45,418
Related Allowance		0	0	0	0
Average Recorded Investment		19,673	24,131	19,731	24,510
Interest Income Recognized		0	0	0	0
Impaired Loans With Related Allowance Recorded [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment		42,988	52,254	42,988	52,254
Unpaid Principal Balance		45,925	61,625	45,925	61,625
Related Allowance		4,510	13,562	4,510	13,562
Average Recorded Investment		40,780	50,127	37,779	46,190
Interest Income Recognized		318	276	431	566
Impaired Loans With Related Allowance Recorded [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment		239,879	255,733	239,879	255,733
Unpaid Principal Balance		256,708	271,313	256,708	271,313
Related Allowance		47,641	59,418	47,641	59,418
Average Recorded Investment		239,791	257,172	241,966	258,678
Interest Income Recognized		1,383	1,433	2,707	2,803
General C I [Member] | Impaired Loans With No Related Allowance Recorded [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment		14,289	12,402	14,289	12,402
Unpaid Principal Balance		22,141	15,690	22,141	15,690
Related Allowance		0	0	0	0
Average Recorded Investment		13,333	13,016	11,278	12,305
Interest Income Recognized		0	0	0	0
General C I [Member] | Impaired Loans With Related Allowance Recorded [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment		33,884	30,549	33,884	30,549
Unpaid Principal Balance		35,585	37,741	35,585	37,741
Related Allowance		3,151	8,117	3,151	8,117
Average Recorded Investment		31,333	28,400	28,127	24,087
Interest Income Recognized		292	237	379	490
TRUPs [Member] | Impaired Loans With Related Allowance Recorded [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment		3,274	13,399	3,274	13,399
Unpaid Principal Balance		3,700	13,700	3,700	13,700
Related Allowance		925	4,810	925	4,810
Average Recorded Investment		3,291	13,414	3,307	13,429
Interest Income Recognized		0	0	0	0
Income C R E [Member] | Impaired Loans With No Related Allowance Recorded [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment		2,468	4,187	2,468	4,187
Unpaid Principal Balance		9,389	11,262	9,389	11,262
Related Allowance		0	0	0	0
Average Recorded Investment		2,468	4,198	2,468	5,283
Interest Income Recognized		0	0	0	0
Income C R E [Member] | Impaired Loans With Related Allowance Recorded [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment		4,454	6,788	4,454	6,788
Unpaid Principal Balance		4,796	8,298	4,796	8,298
Related Allowance		329	533	329	533
Average Recorded Investment		4,780	6,742	4,959	7,140
Interest Income Recognized		20	33	40	63
Residential C R E [Member] | Impaired Loans With No Related Allowance Recorded [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment			0		0
Unpaid Principal Balance			0		0
Related Allowance			0		0
Average Recorded Investment			0		287
Interest Income Recognized			0		0
Residential C R E [Member] | Impaired Loans With Related Allowance Recorded [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment		1,376	1,518	1,376	1,518
Unpaid Principal Balance		1,844	1,886	1,844	1,886
Related Allowance		105	102	105	102
Average Recorded Investment		1,376	1,571	1,386	1,534
Interest Income Recognized		6	6	12	13
Home Equity [Member] | Impaired Loans With No Related Allowance Recorded [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	[1]	11,186	12,577	11,186	12,577
Unpaid Principal Balance	[1]	25,367	30,604	25,367	30,604
Related Allowance	[1]	0	0	0	0
Average Recorded Investment	[1]	11,105	12,588	11,013	12,788
Interest Income Recognized	[1]	0	0	0	0
Home Equity [Member] | Impaired Loans With Related Allowance Recorded [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment		88,871	87,292	88,871	87,292
Unpaid Principal Balance		91,771	89,454	91,771	89,454
Related Allowance		16,375	21,967	16,375	21,967
Average Recorded Investment		88,299	86,197	88,439	85,417
Interest Income Recognized		494	461	981	909
R E Installment Loans [Member] | Impaired Loans With No Related Allowance Recorded [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	[1]	4,232	4,959	4,232	4,959
Unpaid Principal Balance	[1]	5,411	6,211	5,411	6,211
Related Allowance	[1]	0	0	0	0
Average Recorded Investment	[1]	4,407	4,739	4,420	4,704
Interest Income Recognized	[1]	0	0	0	0
R E Installment Loans [Member] | Impaired Loans With Related Allowance Recorded [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment		59,050	67,269	59,050	67,269
Unpaid Principal Balance		60,338	68,151	60,338	68,151
Related Allowance		15,536	19,439	15,536	19,439
Average Recorded Investment		58,923	68,330	59,447	69,227
Interest Income Recognized		345	331	662	658
Permanent Mortgage Portfolio Segment [Member] | Impaired Loans With No Related Allowance Recorded [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment	[1]	4,280	6,403	4,280	6,403
Unpaid Principal Balance	[1]	6,657	8,603	6,657	8,603
Related Allowance	[1]	0	0	0	0
Average Recorded Investment	[1]	4,161	6,804	4,298	7,018
Interest Income Recognized	[1]	0	0	0	0
Permanent Mortgage Portfolio Segment [Member] | Impaired Loans With Related Allowance Recorded [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment		91,602	100,754	91,602	100,754
Unpaid Principal Balance		104,243	113,290	104,243	113,290
Related Allowance		15,583	17,857	15,583	17,857
Average Recorded Investment		92,218	102,194	93,725	103,555
Interest Income Recognized		541	637	1,058	1,228
Credit Card Other [Member] | Impaired Loans With Related Allowance Recorded [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment		356	418	356	418
Unpaid Principal Balance		356	418	356	418
Related Allowance		147	155	147	155
Average Recorded Investment		351	451	355	479
Interest Income Recognized		$ 3	$ 4	$ 6	$ 8

[1] All discharged bankruptcy loans are charged down to an estimate of net realizable value and do not carry any allowance.