Quarterly report pursuant to Section 13 or 15(d)

LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES - Impaired Loans (Details)

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LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES - Impaired Loans (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2015
Commercial and Industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Ending balance of impaired loans with no allowance recorded $ 281,547   $ 255,801
Unpaid principal balance of impaired loans with no allowance recorded 290,918   279,551
Average balance of impaired loans with no allowance recorded 261,144 $ 53,816  
Interest income recognized on impaired loans with no allowance recorded 1,233 412  
Ending balance of impaired loans with allowance recorded 320,863   246,249
Unpaid principal balance of impaired loans with allowance recorded 365,392   274,203
Related Allowance 25,356   21,916
Average balance of impaired loans with allowance recorded 264,084 221,106  
Interest income recognized on impaired loans with allowance recorded 3,086 2,640  
Loans considered impaired due to status as a TDR 92,000   91,000
Commercial and Industrial | Purchased credit-impaired      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Ending balance of impaired loans with no allowance recorded 0   0
Unpaid principal balance of impaired loans with no allowance recorded 0   0
Average balance of impaired loans with no allowance recorded 0 0  
Interest income recognized on impaired loans with no allowance recorded 0 0  
Ending balance of impaired loans with allowance recorded 14,600   21,017
Unpaid principal balance of impaired loans with allowance recorded 22,636   30,676
Related Allowance 799   2,602
Average balance of impaired loans with allowance recorded 17,808 22,303  
Interest income recognized on impaired loans with allowance recorded 997 1,164  
Commercial and Industrial | Owner occupied      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Ending balance of impaired loans with no allowance recorded 40,757   57,832
Unpaid principal balance of impaired loans with no allowance recorded 47,876   65,812
Average balance of impaired loans with no allowance recorded 50,604 12,264  
Interest income recognized on impaired loans with no allowance recorded 291 74  
Ending balance of impaired loans with allowance recorded 66,342   54,092
Unpaid principal balance of impaired loans with allowance recorded 74,899   62,527
Related Allowance 4,086   4,171
Average balance of impaired loans with allowance recorded 57,815 50,705  
Interest income recognized on impaired loans with allowance recorded 584 440  
Commercial and Industrial | Other commercial and industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Ending balance of impaired loans with no allowance recorded 240,790   197,969
Unpaid principal balance of impaired loans with no allowance recorded 243,042   213,739
Average balance of impaired loans with no allowance recorded 210,540 41,552  
Interest income recognized on impaired loans with no allowance recorded 942 338  
Ending balance of impaired loans with allowance recorded 239,921   171,140
Unpaid principal balance of impaired loans with allowance recorded 267,857   181,000
Related Allowance 20,471   15,143
Average balance of impaired loans with allowance recorded 188,461 148,098  
Interest income recognized on impaired loans with allowance recorded 1,505 1,036  
Commercial Real Estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Ending balance of impaired loans with no allowance recorded 87,357   68,260
Unpaid principal balance of impaired loans with no allowance recorded 142,925   125,814
Average balance of impaired loans with no allowance recorded 71,807 100,973  
Interest income recognized on impaired loans with no allowance recorded 1,616 2,505  
Ending balance of impaired loans with allowance recorded 65,275   90,475
Unpaid principal balance of impaired loans with allowance recorded 75,764   104,930
Related Allowance 7,180   8,114
Average balance of impaired loans with allowance recorded 79,857 144,379  
Interest income recognized on impaired loans with allowance recorded 758 1,532  
Loans considered impaired due to status as a TDR 30,000   35,000
Commercial Real Estate | Purchased credit-impaired      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Ending balance of impaired loans with no allowance recorded 12,694   13,758
Unpaid principal balance of impaired loans with no allowance recorded 53,108   55,358
Average balance of impaired loans with no allowance recorded 13,226 36,857  
Interest income recognized on impaired loans with no allowance recorded 867 1,925  
Ending balance of impaired loans with allowance recorded 0   0
Unpaid principal balance of impaired loans with allowance recorded 0   0
Related Allowance 0   0
Average balance of impaired loans with allowance recorded 0 0  
Interest income recognized on impaired loans with allowance recorded 0 0  
Commercial Real Estate | Retail properties      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Ending balance of impaired loans with no allowance recorded 31,499   42,009
Unpaid principal balance of impaired loans with no allowance recorded 32,517   54,021
Average balance of impaired loans with no allowance recorded 36,673 57,556  
Interest income recognized on impaired loans with no allowance recorded 485 496  
Ending balance of impaired loans with allowance recorded 7,128   9,096
Unpaid principal balance of impaired loans with allowance recorded 8,038   11,121
Related Allowance 252   1,190
Average balance of impaired loans with allowance recorded 8,385 40,572  
Interest income recognized on impaired loans with allowance recorded 84 363  
Commercial Real Estate | Multi-family      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Ending balance of impaired loans with no allowance recorded 20,325   0
Unpaid principal balance of impaired loans with no allowance recorded 20,325   0
Average balance of impaired loans with no allowance recorded 6,775 0  
Interest income recognized on impaired loans with no allowance recorded 57 0  
Ending balance of impaired loans with allowance recorded 16,284   34,349
Unpaid principal balance of impaired loans with allowance recorded 18,663   37,208
Related Allowance 1,441   1,593
Average balance of impaired loans with allowance recorded 28,461 15,625  
Interest income recognized on impaired loans with allowance recorded 297 170  
Commercial Real Estate | Office      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Ending balance of impaired loans with no allowance recorded 16,360   9,030
Unpaid principal balance of impaired loans with no allowance recorded 30,330   12,919
Average balance of impaired loans with no allowance recorded 10,671 1,680  
Interest income recognized on impaired loans with no allowance recorded 141 31  
Ending balance of impaired loans with allowance recorded 11,798   14,365
Unpaid principal balance of impaired loans with allowance recorded 14,949   17,350
Related Allowance 1,496   1,177
Average balance of impaired loans with allowance recorded 11,727 50,628  
Interest income recognized on impaired loans with allowance recorded 52 563  
Commercial Real Estate | Industrial and warehouse      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Ending balance of impaired loans with no allowance recorded 0   1,720
Unpaid principal balance of impaired loans with no allowance recorded 0   1,741
Average balance of impaired loans with no allowance recorded 1,143 526  
Interest income recognized on impaired loans with no allowance recorded 19 7  
Ending balance of impaired loans with allowance recorded 3,108   9,721
Unpaid principal balance of impaired loans with allowance recorded 3,642   10,550
Related Allowance 259   1,540
Average balance of impaired loans with allowance recorded 6,411 7,949  
Interest income recognized on impaired loans with allowance recorded 20 82  
Commercial Real Estate | Other commercial real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Ending balance of impaired loans with no allowance recorded 6,479   1,743
Unpaid principal balance of impaired loans with no allowance recorded 6,645   1,775
Average balance of impaired loans with no allowance recorded 3,319 4,354  
Interest income recognized on impaired loans with no allowance recorded 47 46  
Ending balance of impaired loans with allowance recorded 26,957   22,944
Unpaid principal balance of impaired loans with allowance recorded 30,472   28,701
Related Allowance 3,732   2,614
Average balance of impaired loans with allowance recorded 24,873 29,605  
Interest income recognized on impaired loans with allowance recorded 305 354  
Automobile      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Ending balance of impaired loans with allowance recorded 33,264   31,304
Unpaid principal balance of impaired loans with allowance recorded 33,962   31,878
Related Allowance 1,853   1,779
Average balance of impaired loans with allowance recorded 32,284 30,385  
Interest income recognized on impaired loans with allowance recorded 578 561  
Home Equity      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Ending balance of impaired loans with allowance recorded 251,194   248,839
Unpaid principal balance of impaired loans with allowance recorded 286,726   284,957
Related Allowance 13,894   16,242
Average balance of impaired loans with allowance recorded 250,016 316,931  
Interest income recognized on impaired loans with allowance recorded 2,968 3,569  
Home Equity | Secured by first-lien      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Ending balance of impaired loans with allowance recorded 55,830   52,672
Unpaid principal balance of impaired loans with allowance recorded 59,880   57,224
Related Allowance 4,294   4,359
Average balance of impaired loans with allowance recorded 54,251 146,545  
Interest income recognized on impaired loans with allowance recorded 500 1,584  
Home Equity | Secured by junior-lien      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Ending balance of impaired loans with allowance recorded 195,364   196,167
Unpaid principal balance of impaired loans with allowance recorded 226,846   227,733
Related Allowance 9,600   11,883
Average balance of impaired loans with allowance recorded 195,765 170,386  
Interest income recognized on impaired loans with allowance recorded 2,468 1,985  
Residential Mortgage      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Ending balance of impaired loans with allowance recorded 357,565   368,449
Unpaid principal balance of impaired loans with allowance recorded 399,284   411,114
Related Allowance 16,335   16,938
Average balance of impaired loans with allowance recorded 362,280 373,683  
Interest income recognized on impaired loans with allowance recorded 3,036 3,125  
Amount of TDRs guaranteed by the U.S. government 29,000   29,000
Residential Mortgage | Purchased credit-impaired      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Ending balance of impaired loans with allowance recorded 0   1,454
Unpaid principal balance of impaired loans with allowance recorded 0   2,189
Related Allowance 0   127
Average balance of impaired loans with allowance recorded 0 2,040  
Interest income recognized on impaired loans with allowance recorded 0 3  
Residential Mortgage | Residential Mortgage Other [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Ending balance of impaired loans with allowance recorded 357,565   366,995
Unpaid principal balance of impaired loans with allowance recorded 399,284   408,925
Related Allowance 16,335   16,811
Average balance of impaired loans with allowance recorded 362,280 371,643  
Interest income recognized on impaired loans with allowance recorded 3,036 3,122  
Other Consumer      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Ending balance of impaired loans with no allowance recorded 39   52
Unpaid principal balance of impaired loans with no allowance recorded 96   101
Average balance of impaired loans with no allowance recorded 45 0  
Interest income recognized on impaired loans with no allowance recorded 102 0  
Ending balance of impaired loans with allowance recorded 4,959   4,640
Unpaid principal balance of impaired loans with allowance recorded 4,979   4,649
Related Allowance 340   176
Average balance of impaired loans with allowance recorded 4,799 4,617  
Interest income recognized on impaired loans with allowance recorded 66 180  
Other Consumer | Purchased credit-impaired      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Ending balance of impaired loans with no allowance recorded 39   52
Unpaid principal balance of impaired loans with no allowance recorded 96   101
Average balance of impaired loans with no allowance recorded 45 0  
Interest income recognized on impaired loans with no allowance recorded 102 0  
Ending balance of impaired loans with allowance recorded 0   0
Unpaid principal balance of impaired loans with allowance recorded 0   0
Related Allowance 0   0
Average balance of impaired loans with allowance recorded 0 51  
Interest income recognized on impaired loans with allowance recorded 0 118  
Other Consumer | Other consumer      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Ending balance of impaired loans with no allowance recorded 0   0
Unpaid principal balance of impaired loans with no allowance recorded 0   0
Average balance of impaired loans with no allowance recorded 0 0  
Interest income recognized on impaired loans with no allowance recorded 0 0  
Ending balance of impaired loans with allowance recorded 4,959   4,640
Unpaid principal balance of impaired loans with allowance recorded 4,979   4,649
Related Allowance 340   $ 176
Average balance of impaired loans with allowance recorded 4,799 4,566  
Interest income recognized on impaired loans with allowance recorded 66 $ 62  
Residential Mortgage Purchased Impaired [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Ending balance of impaired loans with no allowance recorded 1,492    
Unpaid principal balance of impaired loans with no allowance recorded 2,074    
Average balance of impaired loans with no allowance recorded 1,473    
Interest income recognized on impaired loans with no allowance recorded 2    
Residential Mortgage Other [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Ending balance of impaired loans with no allowance recorded 0    
Unpaid principal balance of impaired loans with no allowance recorded 0    
Average balance of impaired loans with no allowance recorded 0    
Interest income recognized on impaired loans with no allowance recorded 0    
Residential Mortgage      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Ending balance of impaired loans with no allowance recorded 1,492    
Unpaid principal balance of impaired loans with no allowance recorded 2,074    
Average balance of impaired loans with no allowance recorded 1,473    
Interest income recognized on impaired loans with no allowance recorded $ 2