XML 67 R57.htm IDEA: XBRL DOCUMENT v3.8.0.1
Accounting for Certain Loans Acquired in a Transfer - Amounts of Loans (Detail) - USD ($)
$ in Thousands
Sep. 30, 2017
Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Outstanding balance $ 2,425,825 $ 2,135,986
Carrying amount, net of allowance 2,405,490 2,115,532
Loans Purchased With Evidence of Credit Deterioration [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Outstanding balance 10,362 14,843
Carrying amount, net of allowance 10,291 14,843
Loans Purchased With Evidence of Credit Deterioration [Member] | Commercial [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Outstanding balance 7,624 11,563
Loans Purchased With Evidence of Credit Deterioration [Member] | Real Estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Outstanding balance 2,703 3,237
Loans Purchased With Evidence of Credit Deterioration [Member] | Consumer [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Outstanding balance 35 43
Loans Purchased With Evidence of Credit Deterioration [Member] | Heartland [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Outstanding balance 762 1,310
Loans Purchased With Evidence of Credit Deterioration [Member] | Heartland [Member] | Commercial [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Outstanding balance 521 774
Loans Purchased With Evidence of Credit Deterioration [Member] | Heartland [Member] | Real Estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Outstanding balance 241 534
Loans Purchased With Evidence of Credit Deterioration [Member] | Heartland [Member] | Consumer [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Outstanding balance   2
Loans Purchased With Evidence of Credit Deterioration [Member] | Summit [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Outstanding balance 5,552 6,213
Loans Purchased With Evidence of Credit Deterioration [Member] | Summit [Member] | Commercial [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Outstanding balance 4,657 5,245
Loans Purchased With Evidence of Credit Deterioration [Member] | Summit [Member] | Real Estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Outstanding balance 895 967
Loans Purchased With Evidence of Credit Deterioration [Member] | Peoples Bancorp Inc [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Outstanding balance 537 856
Loans Purchased With Evidence of Credit Deterioration [Member] | Peoples Bancorp Inc [Member] | Commercial [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Outstanding balance 398 692
Loans Purchased With Evidence of Credit Deterioration [Member] | Peoples Bancorp Inc [Member] | Real Estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Outstanding balance 139 165
Loans Purchased With Evidence of Credit Deterioration [Member] | Kosciusko Financial Inc [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Outstanding balance 1,373 2,109
Loans Purchased With Evidence of Credit Deterioration [Member] | Kosciusko Financial Inc [Member] | Commercial [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Outstanding balance 962 1,652
Loans Purchased With Evidence of Credit Deterioration [Member] | Kosciusko Financial Inc [Member] | Real Estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Outstanding balance 411 457
Loans Purchased With Evidence of Credit Deterioration [Member] | LaPorte Bancorp Inc [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Outstanding balance 2,138 4,355
Loans Purchased With Evidence of Credit Deterioration [Member] | LaPorte Bancorp Inc [Member] | Commercial [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Outstanding balance 1,086 3,200
Loans Purchased With Evidence of Credit Deterioration [Member] | LaPorte Bancorp Inc [Member] | Real Estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Outstanding balance 1,017 1,114
Loans Purchased With Evidence of Credit Deterioration [Member] | LaPorte Bancorp Inc [Member] | Consumer [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Outstanding balance $ 35 $ 41