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Loans (Information By Class Related To Individually Impaired Loans) (Details) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Recorded Investment |  | $ 326,085,000 | $ 363,459,000 | $ 326,085,000 | $ 363,459,000
Unpaid Principal Balance |  | 377,838,000 | 425,305,000 | 377,838,000 | 425,305,000
Related Allowance |  | 56,525,000 | 66,219,000 | 56,525,000 | 66,219,000
Average Recorded Investment |  | 337,301,000 | 367,299,000 | 343,935,000 | 377,673,000
Interest Income Recognized |  | 1,718,000 | 1,668,000 | 5,086,000 | 5,015,000
Commercial Portfolio Segment [Member] |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Recorded Investment |  | 50,583,000 | 69,842,000 | 50,583,000 | 69,842,000
Unpaid Principal Balance |  | 65,465,000 | 90,888,000 | 65,465,000 | 90,888,000
Related Allowance |  | 6,743,000 | 7,143,000 | 6,743,000 | 7,143,000
Average Recorded Investment |  | 59,714,000 | 72,053,000 | 62,614,000 | 82,311,000
Interest Income Recognized |  | 276,000 | 200,000 | 841,000 | 645,000
Retail [Member] |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Recorded Investment |  | 275,502,000 | 293,617,000 | 275,502,000 | 293,617,000
Unpaid Principal Balance |  | 312,373,000 | 334,417,000 | 312,373,000 | 334,417,000
Related Allowance |  | 49,782,000 | 59,076,000 | 49,782,000 | 59,076,000
Average Recorded Investment |  | 277,587,000 | 295,246,000 | 281,321,000 | 295,362,000
Interest Income Recognized |  | 1,442,000 | 1,468,000 | 4,245,000 | 4,370,000
Impaired Loans With No Related Allowance Recorded [Member] | Commercial Portfolio Segment [Member] |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Recorded Investment |  | 8,054,000 | 23,561,000 | 8,054,000 | 23,561,000
Unpaid Principal Balance |  | 16,655,000 | 33,391,000 | 16,655,000 | 33,391,000
Related Allowance |  | 0 | 0 | 0 | 0
Average Recorded Investment |  | 12,322,000 | 23,519,000 | 16,024,000 | 26,237,000
Interest Income Recognized |  | 0 | 0 | 0 | 0
Impaired Loans With No Related Allowance Recorded [Member] | Retail [Member] |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Recorded Investment |  | 21,387,000 | 27,292,000 | 21,387,000 | 27,292,000
Unpaid Principal Balance |  | 42,497,000 | 51,937,000 | 42,497,000 | 51,937,000
Related Allowance |  | 0 | 0 | 0 | 0
Average Recorded Investment |  | 22,663,000 | 30,004,000 | 23,894,000 | 32,971,000
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 |  | 42,529,000 | 46,281,000 | 42,529,000 | 46,281,000
Unpaid Principal Balance |  | 48,810,000 | 57,497,000 | 48,810,000 | 57,497,000
Related Allowance |  | 6,743,000 | 7,143,000 | 6,743,000 | 7,143,000
Average Recorded Investment |  | 47,392,000 | 48,534,000 | 46,590,000 | 56,074,000
Interest Income Recognized |  | 276,000 | 200,000 | 841,000 | 645,000
Impaired Loans With Related Allowance Recorded [Member] | Retail [Member] |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Recorded Investment |  | 254,115,000 | 266,325,000 | 254,115,000 | 266,325,000
Unpaid Principal Balance |  | 269,876,000 | 282,480,000 | 269,876,000 | 282,480,000
Related Allowance |  | 49,782,000 | 59,076,000 | 49,782,000 | 59,076,000
Average Recorded Investment |  | 254,924,000 | 265,242,000 | 257,427,000 | 262,391,000
Interest Income Recognized |  | 1,442,000 | 1,468,000 | 4,245,000 | 4,370,000
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 |  | 5,586,000 | 15,594,000 | 5,586,000 | 15,594,000
Unpaid Principal Balance |  | 7,266,000 | 17,185,000 | 7,266,000 | 17,185,000
Related Allowance |  | 0 | 0 | 0 | 0
Average Recorded Investment |  | 8,994,000 | 15,542,000 | 11,202,000 | 16,910,000
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 |  | 21,319,000 | 18,393,000 | 21,319,000 | 18,393,000
Unpaid Principal Balance |  | 25,515,000 | 22,579,000 | 25,515,000 | 22,579,000
Related Allowance |  | 846,000 | 2,229,000 | 846,000 | 2,229,000
Average Recorded Investment |  | 25,934,000 | 25,394,000 | 24,702,000 | 25,895,000
Interest Income Recognized |  | 238,000 | 79,000 | 727,000 | 236,000
TRUPs [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 |  | 1,083,000
Interest Income Recognized |  |  | 0 |  | 0
TRUPs [Member] | Impaired Loans With Related Allowance Recorded [Member] | Commercial Portfolio Segment [Member] |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Recorded Investment |  | 13,369,000 | 13,490,000 | 13,369,000 | 13,490,000
Unpaid Principal Balance |  | 13,700,000 | 13,700,000 | 13,700,000 | 13,700,000
Related Allowance |  | 5,310,000 | 3,810,000 | 5,310,000 | 3,810,000
Average Recorded Investment |  | 13,384,000 | 8,505,000 | 13,414,000 | 13,540,000
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 |  | 2,468,000 | 6,819,000 | 2,468,000 | 6,819,000
Unpaid Principal Balance |  | 9,389,000 | 14,379,000 | 9,389,000 | 14,379,000
Related Allowance |  | 0 | 0 | 0 | 0
Average Recorded Investment |  | 3,328,000 | 6,829,000 | 4,631,000 | 7,670,000
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 |  | 6,424,000 | 8,735,000 | 6,424,000 | 8,735,000
Unpaid Principal Balance |  | 7,709,000 | 10,107,000 | 7,709,000 | 10,107,000
Related Allowance |  | 496,000 | 481,000 | 496,000 | 481,000
Average Recorded Investment |  | 6,606,000 | 8,789,000 | 6,962,000 | 10,406,000
Interest Income Recognized |  | 32,000 | 62,000 | 95,000 | 226,000
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 | 1,148,000 | 0 | 1,148,000
Unpaid Principal Balance |  | 0 | 1,827,000 | 0 | 1,827,000
Related Allowance |  | 0 | 0 | 0 | 0
Average Recorded Investment |  | 0 | 1,148,000 | 191,000 | 574,000
Interest Income Recognized |  | 0 | 0 | 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 |  | 1,417,000 | 5,663,000 | 1,417,000 | 5,663,000
Unpaid Principal Balance |  | 1,886,000 | 11,111,000 | 1,886,000 | 11,111,000
Related Allowance |  | 91,000 | 623,000 | 91,000 | 623,000
Average Recorded Investment |  | 1,468,000 | 5,846,000 | 1,512,000 | 6,233,000
Interest Income Recognized |  | 6,000 | 59,000 | 19,000 | 183,000
Home Equity [Member] | Impaired Loans With No Related Allowance Recorded [Member] | Retail [Member] |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Recorded Investment | [1] | 11,000,000 | 14,036,000 | 11,000,000 | 14,036,000
Unpaid Principal Balance | [1] | 28,486,000 | 34,693,000 | 28,486,000 | 34,693,000
Related Allowance | [1] | 0 | 0 | 0 | 0
Average Recorded Investment | [1] | 11,788,000 | 15,713,000 | 12,455,000 | 16,324,000
Interest Income Recognized | [1] | 0 | 0 | 0 | 0
Home Equity [Member] | Impaired Loans With Related Allowance Recorded [Member] | Retail [Member] |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Recorded Investment |  | 89,199,000 | 81,422,000 | 89,199,000 | 81,422,000
Unpaid Principal Balance |  | 91,382,000 | 82,813,000 | 91,382,000 | 82,813,000
Related Allowance |  | 17,200,000 | 17,061,000 | 17,200,000 | 17,061,000
Average Recorded Investment |  | 88,245,000 | 79,352,000 | 86,359,000 | 75,476,000
Interest Income Recognized |  | 474,000 | 448,000 | 1,383,000 | 1,339,000
R E Installment Loans [Member] | Impaired Loans With No Related Allowance Recorded [Member] | Retail [Member] |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Recorded Investment | [1] | 4,404,000 | 5,640,000 | 4,404,000 | 5,640,000
Unpaid Principal Balance | [1] | 5,756,000 | 7,221,000 | 5,756,000 | 7,221,000
Related Allowance | [1] | 0 | 0 | 0 | 0
Average Recorded Investment | [1] | 4,682,000 | 6,552,000 | 4,696,000 | 8,729,000
Interest Income Recognized | [1] | 0 | 0 | 0 | 0
R E Installment Loans [Member] | Impaired Loans With Related Allowance Recorded [Member] | Retail [Member] |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Recorded Investment |  | 65,465,000 | 73,434,000 | 65,465,000 | 73,434,000
Unpaid Principal Balance |  | 66,431,000 | 74,690,000 | 66,431,000 | 74,690,000
Related Allowance |  | 16,718,000 | 24,431,000 | 16,718,000 | 24,431,000
Average Recorded Investment |  | 66,367,000 | 74,091,000 | 68,274,000 | 73,783,000
Interest Income Recognized |  | 352,000 | 306,000 | 1,010,000 | 872,000
Permanent Mortgage Portfolio Segment [Member] | Impaired Loans With No Related Allowance Recorded [Member] | Retail [Member] |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Recorded Investment | [1] | 5,983,000 | 7,616,000 | 5,983,000 | 7,616,000
Unpaid Principal Balance | [1] | 8,255,000 | 10,023,000 | 8,255,000 | 10,023,000
Related Allowance | [1] | 0 | 0 | 0 | 0
Average Recorded Investment | [1] | 6,193,000 | 7,739,000 | 6,743,000 | 7,918,000
Interest Income Recognized | [1] | 0 | 0 | 0 | 0
Permanent Mortgage Portfolio Segment [Member] | Impaired Loans With Related Allowance Recorded [Member] | Retail [Member] |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Recorded Investment |  | 99,071,000 | 110,921,000 | 99,071,000 | 110,921,000
Unpaid Principal Balance |  | 111,683,000 | 124,429,000 | 111,683,000 | 124,429,000
Related Allowance |  | 15,696,000 | 17,329,000 | 15,696,000 | 17,329,000
Average Recorded Investment |  | 99,913,000 | 111,263,000 | 102,341,000 | 112,518,000
Interest Income Recognized |  | 613,000 | 709,000 | 1,841,000 | 2,138,000
Credit Card Other [Member] | Impaired Loans With Related Allowance Recorded [Member] | Retail [Member] |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Recorded Investment |  | 380,000 | 548,000 | 380,000 | 548,000
Unpaid Principal Balance |  | 380,000 | 548,000 | 380,000 | 548,000
Related Allowance |  | 168,000 | 255,000 | 168,000 | 255,000
Average Recorded Investment |  | 399,000 | 536,000 | 453,000 | 614,000
Interest Income Recognized |  | $ 3,000 | $ 5,000 | $ 11,000 | $ 21,000
[1] | All discharged bankruptcy loans are charged down to an estimate of net realizable value and do not carry any allowance.

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