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LOANS AND ALLOWANCE FOR CREDIT LOSSES Loans Past Due (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Jan. 01, 2020
Dec. 31, 2019
Mar. 31, 2019
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due $ 95,751      
Current 9,207,426      
Total loans 9,303,177 $ 9,502,428 $ 9,502,428  
Commercial        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total loans     5,874,777  
Commercial | Construction        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 0      
Current 463,803      
Total loans 463,803 448,452    
Commercial | Commercial multifamily        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 823      
Current 605,434      
Total loans 606,257 631,740    
Commercial real estate        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total loans     4,034,269  
Commercial real estate | Construction        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total loans     429,806  
Commercial real estate | Commercial real estate owner occupied        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 18,718      
Current 605,987      
Total loans 624,705 673,308    
Commercial real estate | Commercial real estate non-owner occupied        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 16,455      
Current 2,196,361      
Total loans 2,212,816 2,189,780    
Commercial real estate | Other commercial real estate        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total loans     3,604,463  
Commercial and industrial loans        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 15,143      
Current 1,470,911      
Total loans 1,486,054 1,522,059 1,840,508  
Commercial and industrial loans | Commercial and industrial - other        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 9,160      
Current 310,649      
Total loans 319,809 321,624    
Residential mortgages        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total loans     2,685,472  
Residential mortgages | Construction        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total loans     8,119  
Residential mortgages | Real Estate        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 22,597      
Current 2,744,110      
Total loans 2,766,707 2,853,385    
Residential mortgages | 1 to 4 Family        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total loans     2,677,353  
Consumer loans        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total loans     942,179  
Consumer loans | Home equity        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 4,915      
Current 372,220      
Total loans 377,135 378,793 380,591  
Consumer loans | Consumer other        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 7,940      
Current 437,951      
Total loans 445,891 $ 483,287    
Consumer loans | Auto And Other Receivable        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total loans     561,588  
30-59 Days Past Due        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 28,047      
30-59 Days Past Due | Commercial | Construction        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 0      
30-59 Days Past Due | Commercial | Commercial multifamily        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 20      
30-59 Days Past Due | Commercial real estate | Commercial real estate owner occupied        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 6,141      
30-59 Days Past Due | Commercial real estate | Commercial real estate non-owner occupied        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 6,978      
30-59 Days Past Due | Commercial and industrial loans        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 1,800      
30-59 Days Past Due | Commercial and industrial loans | Commercial and industrial - other        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 843      
30-59 Days Past Due | Residential mortgages | Real Estate        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 6,445      
30-59 Days Past Due | Consumer loans | Home equity        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 2,069      
30-59 Days Past Due | Consumer loans | Consumer other        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 3,751      
60-89 Days Past Due        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 11,536      
60-89 Days Past Due | Commercial | Construction        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 0      
60-89 Days Past Due | Commercial | Commercial multifamily        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 0      
60-89 Days Past Due | Commercial real estate | Commercial real estate owner occupied        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 149      
60-89 Days Past Due | Commercial real estate | Commercial real estate non-owner occupied        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 6,868      
60-89 Days Past Due | Commercial and industrial loans        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 750      
60-89 Days Past Due | Commercial and industrial loans | Commercial and industrial - other        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 700      
60-89 Days Past Due | Residential mortgages | Real Estate        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 2,070      
60-89 Days Past Due | Consumer loans | Home equity        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 318      
60-89 Days Past Due | Consumer loans | Consumer other        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 681      
90 Days or Greater Past Due        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 56,168      
90 Days or Greater Past Due | Commercial | Construction        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 0      
90 Days or Greater Past Due | Commercial | Commercial multifamily        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 803      
90 Days or Greater Past Due | Commercial real estate | Commercial real estate owner occupied        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 12,428      
90 Days or Greater Past Due | Commercial real estate | Commercial real estate non-owner occupied        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 2,609      
90 Days or Greater Past Due | Commercial and industrial loans        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 12,593      
90 Days or Greater Past Due | Commercial and industrial loans | Commercial and industrial - other        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 7,617      
90 Days or Greater Past Due | Residential mortgages | Real Estate        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 14,082      
90 Days or Greater Past Due | Consumer loans | Home equity        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due 2,528      
90 Days or Greater Past Due | Consumer loans | Consumer other        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due $ 3,508      
Business Activities Loans        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     47,128  
Current     7,119,369  
Total loans     7,166,497  
Past Due 90 days and Accruing     975  
Business Activities Loans | Commercial        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total loans     4,239,573  
Business Activities Loans | Commercial real estate        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     16,135  
Current     2,780,821  
Total loans     2,796,956 $ 2,796,956
Past Due 90 days and Accruing     0  
Business Activities Loans | Commercial real estate | Construction        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     0  
Current     382,014  
Total loans     382,014 382,014
Past Due 90 days and Accruing     0  
Business Activities Loans | Commercial real estate | Real Estate        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total loans       2,414,942
Business Activities Loans | Commercial real estate | Other commercial real estate        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     16,135  
Current     2,398,807  
Total loans     2,414,942  
Past Due 90 days and Accruing     0  
Business Activities Loans | Commercial and industrial loans        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     15,536  
Current     1,427,081  
Total loans     1,442,617 1,442,617
Past Due 90 days and Accruing     122  
Business Activities Loans | Residential mortgages        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     5,733  
Current     2,142,725  
Total loans     2,148,458 2,148,458
Past Due 90 days and Accruing     800  
Business Activities Loans | Residential mortgages | Construction        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     0  
Current     4,641  
Total loans     4,641 4,641
Past Due 90 days and Accruing     0  
Business Activities Loans | Residential mortgages | 1 to 4 Family        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     5,733  
Current     2,138,084  
Total loans     2,143,817 2,143,817
Past Due 90 days and Accruing     800  
Business Activities Loans | Consumer loans        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     9,724  
Current     768,742  
Total loans     778,466 778,466
Past Due 90 days and Accruing     53  
Business Activities Loans | Consumer loans | Home equity        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     1,296  
Current     272,571  
Total loans     273,867 273,867
Past Due 90 days and Accruing     52  
Business Activities Loans | Consumer loans | Auto And Other Receivable        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     8,428  
Current     496,171  
Total loans     504,599 504,599
Past Due 90 days and Accruing     1  
Business Activities Loans | 30-59 Days Past Due        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     9,791  
Business Activities Loans | 30-59 Days Past Due | Commercial real estate        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     423  
Business Activities Loans | 30-59 Days Past Due | Commercial real estate | Construction        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     0  
Business Activities Loans | 30-59 Days Past Due | Commercial real estate | Other commercial real estate        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     423  
Business Activities Loans | 30-59 Days Past Due | Commercial and industrial loans        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     2,841  
Business Activities Loans | 30-59 Days Past Due | Residential mortgages        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     1,669  
Business Activities Loans | 30-59 Days Past Due | Residential mortgages | Construction        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     0  
Business Activities Loans | 30-59 Days Past Due | Residential mortgages | 1 to 4 Family        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     1,669  
Business Activities Loans | 30-59 Days Past Due | Consumer loans        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     4,858  
Business Activities Loans | 30-59 Days Past Due | Consumer loans | Home equity        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     149  
Business Activities Loans | 30-59 Days Past Due | Consumer loans | Auto And Other Receivable        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     4,709  
Business Activities Loans | 60-89 Days Past Due        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     3,826  
Business Activities Loans | 60-89 Days Past Due | Commercial real estate        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     89  
Business Activities Loans | 60-89 Days Past Due | Commercial real estate | Construction        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     0  
Business Activities Loans | 60-89 Days Past Due | Commercial real estate | Other commercial real estate        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     89  
Business Activities Loans | 60-89 Days Past Due | Commercial and industrial loans        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     2,033  
Business Activities Loans | 60-89 Days Past Due | Residential mortgages        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     714  
Business Activities Loans | 60-89 Days Past Due | Residential mortgages | Construction        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     0  
Business Activities Loans | 60-89 Days Past Due | Residential mortgages | 1 to 4 Family        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     714  
Business Activities Loans | 60-89 Days Past Due | Consumer loans        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     990  
Business Activities Loans | 60-89 Days Past Due | Consumer loans | Home equity        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     0  
Business Activities Loans | 60-89 Days Past Due | Consumer loans | Auto And Other Receivable        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     990  
Business Activities Loans | 90 Days or Greater Past Due        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     33,511  
Business Activities Loans | 90 Days or Greater Past Due | Commercial real estate        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     15,623  
Business Activities Loans | 90 Days or Greater Past Due | Commercial real estate | Construction        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     0  
Business Activities Loans | 90 Days or Greater Past Due | Commercial real estate | Other commercial real estate        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     15,623  
Business Activities Loans | 90 Days or Greater Past Due | Commercial and industrial loans        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     10,662  
Business Activities Loans | 90 Days or Greater Past Due | Residential mortgages        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     3,350  
Business Activities Loans | 90 Days or Greater Past Due | Residential mortgages | Construction        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     0  
Business Activities Loans | 90 Days or Greater Past Due | Residential mortgages | 1 to 4 Family        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     3,350  
Business Activities Loans | 90 Days or Greater Past Due | Consumer loans        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     3,876  
Business Activities Loans | 90 Days or Greater Past Due | Consumer loans | Home equity        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     1,147  
Business Activities Loans | 90 Days or Greater Past Due | Consumer loans | Auto And Other Receivable        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     2,729  
Acquired Loans        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     20,793  
Current     61,419  
Total loans     2,335,931  
Past Due 90 days and Accruing     6,404  
Acquired Loans | Commercial        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total loans     1,635,204  
Acquired Loans | Commercial real estate        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     14,399  
Current     23,035  
Total loans     1,237,313 1,237,313
Past Due 90 days and Accruing     5,751  
Acquired Loans | Commercial real estate | Construction        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     0  
Current     1,396  
Total loans     47,792 47,792
Past Due 90 days and Accruing     0  
Acquired Loans | Commercial real estate | Real Estate        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total loans       1,189,521
Acquired Loans | Commercial real estate | Other commercial real estate        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     14,399  
Current     21,639  
Total loans     1,189,521  
Past Due 90 days and Accruing     5,751  
Acquired Loans | Commercial and industrial loans        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     2,462  
Current     26,718  
Total loans     397,891 397,891
Past Due 90 days and Accruing     442  
Acquired Loans | Residential mortgages        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     2,168  
Current     10,840  
Total loans     537,014 537,014
Past Due 90 days and Accruing     139  
Acquired Loans | Residential mortgages | Construction        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     0  
Current     0  
Total loans     3,478 3,478
Past Due 90 days and Accruing     0  
Acquired Loans | Residential mortgages | 1 to 4 Family        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     2,168  
Current     10,840  
Total loans     533,536 533,536
Past Due 90 days and Accruing     139  
Acquired Loans | Consumer loans        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     1,764  
Current     826  
Total loans     163,713 163,713
Past Due 90 days and Accruing     72  
Acquired Loans | Consumer loans | Home equity        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     1,357  
Current     540  
Total loans     106,724 106,724
Past Due 90 days and Accruing     72  
Acquired Loans | Consumer loans | Auto And Other Receivable        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     407  
Current     286  
Total loans     56,989 $ 56,989
Past Due 90 days and Accruing     0  
Acquired Loans | 30-59 Days Past Due        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     6,006  
Acquired Loans | 30-59 Days Past Due | Commercial real estate        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     3,907  
Acquired Loans | 30-59 Days Past Due | Commercial real estate | Construction        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     0  
Acquired Loans | 30-59 Days Past Due | Commercial real estate | Other commercial real estate        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     3,907  
Acquired Loans | 30-59 Days Past Due | Commercial and industrial loans        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     888  
Acquired Loans | 30-59 Days Past Due | Residential mortgages        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     745  
Acquired Loans | 30-59 Days Past Due | Residential mortgages | Construction        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     0  
Acquired Loans | 30-59 Days Past Due | Residential mortgages | 1 to 4 Family        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     745  
Acquired Loans | 30-59 Days Past Due | Consumer loans        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     466  
Acquired Loans | 30-59 Days Past Due | Consumer loans | Home equity        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     346  
Acquired Loans | 30-59 Days Past Due | Consumer loans | Auto And Other Receivable        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     120  
Acquired Loans | 60-89 Days Past Due        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     1,279  
Acquired Loans | 60-89 Days Past Due | Commercial real estate        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     245  
Acquired Loans | 60-89 Days Past Due | Commercial real estate | Construction        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     0  
Acquired Loans | 60-89 Days Past Due | Commercial real estate | Other commercial real estate        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     245  
Acquired Loans | 60-89 Days Past Due | Commercial and industrial loans        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     299  
Acquired Loans | 60-89 Days Past Due | Residential mortgages        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     491  
Acquired Loans | 60-89 Days Past Due | Residential mortgages | Construction        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     0  
Acquired Loans | 60-89 Days Past Due | Residential mortgages | 1 to 4 Family        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     491  
Acquired Loans | 60-89 Days Past Due | Consumer loans        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     244  
Acquired Loans | 60-89 Days Past Due | Consumer loans | Home equity        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     222  
Acquired Loans | 60-89 Days Past Due | Consumer loans | Auto And Other Receivable        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     22  
Acquired Loans | 90 Days or Greater Past Due        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     13,508  
Acquired Loans | 90 Days or Greater Past Due | Commercial real estate        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     10,247  
Acquired Loans | 90 Days or Greater Past Due | Commercial real estate | Construction        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     0  
Acquired Loans | 90 Days or Greater Past Due | Commercial real estate | Other commercial real estate        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     10,247  
Acquired Loans | 90 Days or Greater Past Due | Commercial and industrial loans        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     1,275  
Acquired Loans | 90 Days or Greater Past Due | Residential mortgages        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     932  
Acquired Loans | 90 Days or Greater Past Due | Residential mortgages | Construction        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     0  
Acquired Loans | 90 Days or Greater Past Due | Residential mortgages | 1 to 4 Family        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     932  
Acquired Loans | 90 Days or Greater Past Due | Consumer loans        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     1,054  
Acquired Loans | 90 Days or Greater Past Due | Consumer loans | Home equity        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     789  
Acquired Loans | 90 Days or Greater Past Due | Consumer loans | Auto And Other Receivable        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Total Past Due     $ 265