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Loans (Accruing And Non-Accruing Loans By Class) (Details) - USD ($)
Mar. 31, 2016
Dec. 31, 2015
Mar. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Loans, net of unearned income [1] $ 17,574,994,000 $ 17,686,502,000 $ 16,732,123,000
Commercial Financial And Industrial Portfolio Segment [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total Accruing 10,200,670,000   9,604,544,000
Total Non-Accruing 38,513,000   33,811,000
Loans, net of unearned income 10,239,183,000 10,436,390,000 9,638,355,000
Consumer Real Estate Portfolio Segment [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total Accruing 4,576,216,000   4,803,417,000
Total Non-Accruing 114,014,000   119,400,000
Loans, net of unearned income [2] 4,690,230,000 4,766,518,000 4,922,817,000
Commercial Real Estate Portfolio Segment [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total Accruing 1,839,097,000   1,307,561,000
Total Non-Accruing 9,472,000   13,336,000
Loans, net of unearned income 1,848,569,000 1,674,935,000 1,320,897,000
Permanent Mortgage Portfolio Segment [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total Accruing 412,551,000   478,781,000
Total Non-Accruing 30,240,000   32,927,000
Loans, net of unearned income 442,791,000 454,123,000 511,708,000
Credit Card And Other Portfolio Segment [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total Accruing 352,875,000   337,591,000
Total Non-Accruing 1,346,000   755,000
Loans, net of unearned income 354,221,000 $ 354,536,000 338,346,000
General C I [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total Accruing 8,387,337,000   7,632,751,000
Total Non-Accruing 35,113,000   20,877,000
Loans, net of unearned income 8,422,450,000   7,653,628,000
Loans To Mortgage Companies [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total Accruing 1,495,765,000   1,641,553,000
Total Non-Accruing 93,000   119,000
Loans, net of unearned income 1,495,858,000   1,641,672,000
TRUPs [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total Accruing 304,527,000 [3]   325,382,000 [4]
Total Non-Accruing 3,307,000 [3]   12,815,000 [4]
Loans, net of unearned income 307,834,000 [3]   338,197,000 [4]
LOCOM valuation allowance 25,500,000   26,200,000
Income C R E [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total Accruing 1,760,894,000   1,250,480,000
Total Non-Accruing 8,729,000   13,336,000
Loans, net of unearned income 1,769,623,000   1,263,816,000
Residential C R E [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total Accruing 65,261,000   31,656,000
Total Non-Accruing 743,000   0
Loans, net of unearned income 66,004,000   31,656,000
Home Equity [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total Accruing 1,909,281,000   2,281,475,000
Total Non-Accruing 79,799,000   83,335,000
Loans, net of unearned income 1,989,080,000   2,364,810,000
R E Installment Loans [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total Accruing 2,662,718,000   2,519,542,000
Total Non-Accruing 34,215,000   36,065,000
Loans, net of unearned income 2,696,933,000   2,555,607,000
Credit Card      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total Accruing 188,511,000   179,949,000
Total Non-Accruing 0   0
Loans, net of unearned income 188,511,000   179,949,000
Other Consumer Loans Class      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total Accruing 164,310,000   157,633,000
Total Non-Accruing 1,346,000   755,000
Loans, net of unearned income 165,656,000   158,388,000
C&I Purchase Credit Impaired Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total Accruing 13,041,000   4,858,000
Total Non-Accruing 0   0
Loans, net of unearned income 13,041,000   4,858,000
CRE Purchase Credit Impaired Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total Accruing 12,942,000   25,425,000
Total Non-Accruing 0   0
Loans, net of unearned income 12,942,000   25,425,000
RE Installment Purchase Credit Impaired Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total Accruing 4,217,000   2,400,000
Total Non-Accruing 0   0
Loans, net of unearned income 4,217,000   2,400,000
Other Purchased Credit Impaired Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total Accruing 54,000   9,000
Total Non-Accruing 0   0
Loans, net of unearned income 54,000   9,000
Accruing      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 17,287,238,000   16,453,914,000
Total Accruing 17,381,409,000   16,531,894,000
Accruing | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 75,060,000   50,037,000
Accruing | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 19,111,000   27,943,000
Accruing | Commercial Financial And Industrial Portfolio Segment [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 10,163,225,000   9,597,421,000
Accruing | Commercial Financial And Industrial Portfolio Segment [Member] | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 36,874,000   6,206,000
Accruing | Commercial Financial And Industrial Portfolio Segment [Member] | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 571,000   917,000
Accruing | Consumer Real Estate Portfolio Segment [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 4,537,965,000   4,755,086,000
Accruing | Consumer Real Estate Portfolio Segment [Member] | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 27,783,000   32,677,000
Accruing | Consumer Real Estate Portfolio Segment [Member] | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 10,468,000   15,654,000
Accruing | Commercial Real Estate Portfolio Segment [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 1,835,690,000   1,303,201,000
Accruing | Commercial Real Estate Portfolio Segment [Member] | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 2,861,000   752,000
Accruing | Commercial Real Estate Portfolio Segment [Member] | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 546,000   3,608,000
Accruing | Permanent Mortgage Portfolio Segment [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 401,496,000   464,677,000
Accruing | Permanent Mortgage Portfolio Segment [Member] | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 5,117,000   8,019,000
Accruing | Permanent Mortgage Portfolio Segment [Member] | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 5,938,000   6,085,000
Accruing | Credit Card And Other Portfolio Segment [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 348,862,000   333,529,000
Accruing | Credit Card And Other Portfolio Segment [Member] | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 2,425,000   2,383,000
Accruing | Credit Card And Other Portfolio Segment [Member] | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 1,588,000   1,679,000
Accruing | General C I [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 8,356,560,000   7,627,209,000
Accruing | General C I [Member] | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 30,463,000   5,291,000
Accruing | General C I [Member] | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 314,000   251,000
Accruing | Loans To Mortgage Companies [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 1,489,354,000   1,640,638,000
Accruing | Loans To Mortgage Companies [Member] | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 6,411,000   915,000
Accruing | Loans To Mortgage Companies [Member] | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 0   0
Accruing | TRUPs [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 304,527,000 [3]   325,382,000 [4]
Accruing | TRUPs [Member] | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 0 [3]   0 [4]
Accruing | TRUPs [Member] | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 0 [3]   0 [4]
Accruing | Income C R E [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 1,759,601,000   1,249,793,000
Accruing | Income C R E [Member] | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 1,188,000   687,000
Accruing | Income C R E [Member] | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 105,000   0
Accruing | Residential C R E [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 65,261,000   31,591,000
Accruing | Residential C R E [Member] | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 0   65,000
Accruing | Residential C R E [Member] | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 0   0
Accruing | Home Equity [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 1,882,664,000   2,250,415,000
Accruing | Home Equity [Member] | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 18,447,000   20,698,000
Accruing | Home Equity [Member] | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 8,170,000   10,362,000
Accruing | R E Installment Loans [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 2,651,317,000   2,502,363,000
Accruing | R E Installment Loans [Member] | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 9,103,000   11,975,000
Accruing | R E Installment Loans [Member] | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 2,298,000   5,204,000
Accruing | Credit Card      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 185,652,000   177,042,000
Accruing | Credit Card | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 1,463,000   1,467,000
Accruing | Credit Card | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 1,396,000   1,440,000
Accruing | Other Consumer Loans Class      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 163,156,000   156,478,000
Accruing | Other Consumer Loans Class | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 962,000   916,000
Accruing | Other Consumer Loans Class | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 192,000   239,000
Accruing | C&I Purchase Credit Impaired Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 12,784,000   4,192,000
Accruing | C&I Purchase Credit Impaired Loans | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 0   0
Accruing | C&I Purchase Credit Impaired Loans | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 257,000   666,000
Accruing | CRE Purchase Credit Impaired Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 10,828,000   21,817,000
Accruing | CRE Purchase Credit Impaired Loans | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 1,673,000   0
Accruing | CRE Purchase Credit Impaired Loans | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 441,000   3,608,000
Accruing | RE Installment Purchase Credit Impaired Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 3,984,000   2,308,000
Accruing | RE Installment Purchase Credit Impaired Loans | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 233,000   4,000
Accruing | RE Installment Purchase Credit Impaired Loans | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 0   88,000
Accruing | Other Purchased Credit Impaired Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 54,000   9,000
Accruing | Other Purchased Credit Impaired Loans | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 0   0
Accruing | Other Purchased Credit Impaired Loans | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 0   0
Non-Accruing      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 121,645,000   114,096,000
Total Non-Accruing 193,585,000   200,229,000
Non-Accruing | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 13,211,000   23,665,000
Non-Accruing | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 58,729,000   62,468,000
Non-Accruing | Commercial Financial And Industrial Portfolio Segment [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 16,702,000   1,441,000
Non-Accruing | Commercial Financial And Industrial Portfolio Segment [Member] | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 557,000   10,445,000
Non-Accruing | Commercial Financial And Industrial Portfolio Segment [Member] | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 21,254,000   21,925,000
Non-Accruing | Consumer Real Estate Portfolio Segment [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 89,244,000   94,491,000
Non-Accruing | Consumer Real Estate Portfolio Segment [Member] | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 8,398,000   7,651,000
Non-Accruing | Consumer Real Estate Portfolio Segment [Member] | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 16,372,000   17,258,000
Non-Accruing | Commercial Real Estate Portfolio Segment [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 3,047,000   1,454,000
Non-Accruing | Commercial Real Estate Portfolio Segment [Member] | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 64,000   2,817,000
Non-Accruing | Commercial Real Estate Portfolio Segment [Member] | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 6,361,000   9,065,000
Non-Accruing | Permanent Mortgage Portfolio Segment [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 12,039,000   16,710,000
Non-Accruing | Permanent Mortgage Portfolio Segment [Member] | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 4,192,000   2,752,000
Non-Accruing | Permanent Mortgage Portfolio Segment [Member] | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 14,009,000   13,465,000
Non-Accruing | Credit Card And Other Portfolio Segment [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 613,000   0
Non-Accruing | Credit Card And Other Portfolio Segment [Member] | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 0   0
Non-Accruing | Credit Card And Other Portfolio Segment [Member] | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 733,000   755,000
Non-Accruing | General C I [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 16,702,000   1,441,000
Non-Accruing | General C I [Member] | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 557,000   10,445,000
Non-Accruing | General C I [Member] | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 17,854,000   8,991,000
Non-Accruing | Loans To Mortgage Companies [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 0   0
Non-Accruing | Loans To Mortgage Companies [Member] | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 0   0
Non-Accruing | Loans To Mortgage Companies [Member] | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 93,000   119,000
Non-Accruing | TRUPs [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 0 [3]   0 [4]
Non-Accruing | TRUPs [Member] | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 0 [3]   0 [4]
Non-Accruing | TRUPs [Member] | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 3,307,000 [3]   12,815,000 [4]
Non-Accruing | Income C R E [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 3,047,000   1,454,000
Non-Accruing | Income C R E [Member] | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 64,000   2,817,000
Non-Accruing | Income C R E [Member] | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 5,618,000   9,065,000
Non-Accruing | Residential C R E [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 0   0
Non-Accruing | Residential C R E [Member] | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 0   0
Non-Accruing | Residential C R E [Member] | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 743,000   0
Non-Accruing | Home Equity [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 63,021,000   66,743,000
Non-Accruing | Home Equity [Member] | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 5,542,000   5,075,000
Non-Accruing | Home Equity [Member] | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 11,236,000   11,517,000
Non-Accruing | R E Installment Loans [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 26,223,000   27,748,000
Non-Accruing | R E Installment Loans [Member] | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 2,856,000   2,576,000
Non-Accruing | R E Installment Loans [Member] | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 5,136,000   5,741,000
Non-Accruing | Credit Card      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 0   0
Non-Accruing | Credit Card | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 0   0
Non-Accruing | Credit Card | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 0   0
Non-Accruing | Other Consumer Loans Class      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 613,000   0
Non-Accruing | Other Consumer Loans Class | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 0   0
Non-Accruing | Other Consumer Loans Class | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 733,000   755,000
Non-Accruing | C&I Purchase Credit Impaired Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 0   0
Non-Accruing | C&I Purchase Credit Impaired Loans | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 0   0
Non-Accruing | C&I Purchase Credit Impaired Loans | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 0   0
Non-Accruing | CRE Purchase Credit Impaired Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 0   0
Non-Accruing | CRE Purchase Credit Impaired Loans | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 0   0
Non-Accruing | CRE Purchase Credit Impaired Loans | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 0   0
Non-Accruing | RE Installment Purchase Credit Impaired Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 0   0
Non-Accruing | RE Installment Purchase Credit Impaired Loans | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 0   0
Non-Accruing | RE Installment Purchase Credit Impaired Loans | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 0   0
Non-Accruing | Other Purchased Credit Impaired Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current 0   0
Non-Accruing | Other Purchased Credit Impaired Loans | 30-89 Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due 0   0
Non-Accruing | Other Purchased Credit Impaired Loans | 90+ Days Past Due      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due $ 0   $ 0
[1] March 31, 2016 and 2015 and December 31, 2015 include $31.2 million , $28.0 million and $29.7 million, respectively, of held-to-maturity consumer mortgage loans secured by residential real estate properties in process of foreclosure.
[2] Balances as of March 31, 2016 and 2015, and December 31, 2015, include $ 47.8 million , $ 71 . 6 million, and $ 52 .8 million of restricted real estate loans, respectively. See Note 13 - Variable Interest Entities for additional information.
[3] Total TRUPS i nclude s LOCOM valuation allowance of $ 25.5 million.
[4] Total TRUPS i nclu des LOCOM valuation allowance of $ 26.2 million.