XML 68 R53.htm IDEA: XBRL DOCUMENT v3.10.0.1
Summary Of Significant Accounting Policies (Narrative) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jan. 01, 2019
Dec. 31, 2018
Dec. 31, 2017
Significant Accounting Policies [Line Items]      
Days past due when loans are generally placed on nonaccrual status, in days   90 days 90 days
General period after loans become current, accrual status returned, in months   6 months  
Days past due when loans are generally charged-off in full, in days   120 days  
Other real estate owned   $ 230 $ 148
FHLB stock   20,300 21,900
FRB stock   6,100 5,800
Equity method investments, asset amount   $ 10,500 $ 5,700
Number of consecutive years used for compensation calculation   5 years  
Subsequent Event [Member]      
Significant Accounting Policies [Line Items]      
Reclassification from AOCI to retained earnings $ 2,800    
Subsequent Event [Member] | ASU 2016-02 [Member]      
Significant Accounting Policies [Line Items]      
Cumulative-effect adjustment on assets 22,200    
Cumulative-effect adjustment on liabilities $ 23,500    
Core Deposits [Member]      
Significant Accounting Policies [Line Items]      
Estimated average life   9 years 6 months  
Other Intangible Assets [Member]      
Significant Accounting Policies [Line Items]      
Estimated average life   20 years  
Minimum [Member]      
Significant Accounting Policies [Line Items]      
Standby letters of credit outstanding original term, in years   1 year  
Loss rate look-back period   24 months  
Loss emergence period   12 months  
Minimum [Member] | Building And Building Improvements [Member]      
Significant Accounting Policies [Line Items]      
Premise and equipment, estimated useful lives, in years   15 years  
Minimum [Member] | Software Furniture And Equipment [Member]      
Significant Accounting Policies [Line Items]      
Premise and equipment, estimated useful lives, in years   3 years  
Maximum [Member]      
Significant Accounting Policies [Line Items]      
Standby letters of credit outstanding original term, in years   5 years  
Loss emergence period   32 months  
Maximum [Member] | Building And Building Improvements [Member]      
Significant Accounting Policies [Line Items]      
Premise and equipment, estimated useful lives, in years   39 years  
Maximum [Member] | Software Furniture And Equipment [Member]      
Significant Accounting Policies [Line Items]      
Premise and equipment, estimated useful lives, in years   10 years