XML 103 R82.htm IDEA: XBRL DOCUMENT v3.10.0.1
Fair Value Measurements (Textual) (Details) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Assets, fair value disclosure $ 3,216,470,000 $ 2,098,201,000  
Loans held for sale on nonaccrual status 0 0  
Impairment of goodwill 0 0  
Impairment identified for intangible assets 0 0  
Liabilities recorded at fair value 32,379,000 12,357,000  
Loans held for sale 90 days past due and on accrual status 0 0  
Nonrecurring      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Liabilities recorded at fair value $ 0 $ 0  
Non-compete intangible assets      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Finite-lived intangible assets amortization period 1 year    
Loan Servicing Rights      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Valuation allowance related to impairment     $ 8,000
Minimum      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Discount factors used to determine fair value 20.00%    
Finite-lived intangible assets amortization period 10 years    
Minimum | Other Real Estate and Repossessed Assets      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Discount factors used to determine fair value 20.00%    
Maximum      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Discount factors used to determine fair value 30.00%    
Finite-lived intangible assets amortization period 15 years    
Maximum | Other Real Estate and Repossessed Assets      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Discount factors used to determine fair value 30.00%