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Subsequent Events (Details)
$ / shares in Units, $ in Millions
Apr. 27, 2017
USD ($)
$ / shares
Apr. 19, 2017
$ / shares
Mar. 31, 2017
USD ($)
branch
Folsom Lake Bank [Member]      
Business Acquisition [Line Items]      
Number of branches to be acquired | branch     3
Total assets     $ 202.7
Combined pro forma assets     $ 1,700.0
Subsequent Event [Member]      
Business Acquisition [Line Items]      
Dividends declared (in dollars per share) | $ / shares   $ 0.06  
Subsequent Event [Member] | Folsom Lake Bank [Member]      
Business Acquisition [Line Items]      
Transaction value $ 33.6    
Stock exchange ratio 0.80    
Share price (in dollars per share) | $ / shares $ 18.74