XML 45 R34.htm IDEA: XBRL DOCUMENT v3.10.0.1
Business Combinations - Additional Information (Detail)
3 Months Ended 9 Months Ended
Aug. 10, 2018
USD ($)
Branch
Mar. 10, 2017
USD ($)
Branch
Sep. 30, 2018
USD ($)
Sep. 30, 2017
USD ($)
Sep. 30, 2018
USD ($)
Sep. 30, 2017
USD ($)
Dec. 31, 2017
USD ($)
Business Acquisition [Line Items]              
Acquisition date         Oct. 16, 2009    
Goodwill     $ 662,888,000   $ 662,888,000   $ 116,564,000
Merger related expenses     6,645,000 $ 250,000 $ 7,942,000 $ 2,176,000  
Valley Commerce Bancorp [Member]              
Business Acquisition [Line Items]              
Acquisition date         Mar. 10, 2017    
Acquired assets and assumed liabilities for cash   $ 23,200,000          
Assets and assumed all of the liabilities, stock   37,600,000          
Goodwill   27,000,000          
Business combination, recognized identifiable assets acquired and liabilities assumed, intangible assets, other than goodwill   3,200,000          
Merger related expenses       $ 250,000.0 $ 0 $ 2,200,000  
Total fair value of assets acquired   405,900,000          
Cash and cash equivalents   28,300,000          
FHLB stock   2,000,000          
Loans and lease finance receivables   309,700,000          
Fixed assets   5,300,000          
Bank-Owned Life Insurance   9,400,000          
Other assets   21,000,000          
Total fair value of liabilities assumed   368,300,000          
Deposits   361,800,000          
Other liabilities   $ 6,500,000          
Valley Business Bank [Member]              
Business Acquisition [Line Items]              
Number of branches owned by merger company | Branch   4          
Community Bank [Member]              
Business Acquisition [Line Items]              
Acquisition date         Aug. 10, 2018    
Number of branches owned by merger company | Branch 16            
Acquired assets and assumed liabilities for cash $ 180,719,000            
Assets and assumed all of the liabilities, stock 722,800,000            
Goodwill 546,324,000            
Business combination, recognized identifiable assets acquired and liabilities assumed, intangible assets, other than goodwill $ 52,200,000            
Percentage of core deposits to total deposits 2.26%            
Merger related expenses     $ 6,600,000   $ 7,900,000    
Total fair value of assets acquired $ 3,719,911,000            
Cash and cash equivalents 47,802,000            
FHLB stock 17,250,000            
Loans and lease finance receivables 2,734,081,000            
Bank-Owned Life Insurance 70,904,000            
Other assets 58,130,000            
Total fair value of liabilities assumed 357,162,000            
Deposits 2,869,986,000            
Other liabilities $ 29,192,000