XML 34 R66.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Acquisitions - Additional Information (Detail) - USD ($)
 12 Months Ended
Mar. 26, 2019
Oct. 17, 2017
Sep. 01, 2017
Feb. 03, 2017
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Aug. 31, 2017
Business Acquisition [Line Items]                
Common stock, shares outstanding         44,975,771 38,375,407    
Acquisition of goodwill $ 31,200,000       $ 151,238,000 $ 119,880,000 $ 119,880,000  
Gain on remeasurement of equity interest         $ 530,000      
Wolverine Bancorp Inc [Member]                
Business Acquisition [Line Items]                
Common stock, shares outstanding     2,129,331          
Common stock issued   3,241,045            
Market closing price per share   $ 19.37            
Estimated transaction value   $ 93,800,000            
Costs related to the acquisition   1,900,000            
Total purchase price   93,773,000            
Net intangible assets acquired   2,024,000            
Acquisition of goodwill   $ 26,827,000            
Core deposit intangible amortization period         10 years      
Number of shares owned   1.5228            
Share of common stock outstanding per share     $ 14.00          
Payments received as cash consideration             (12,723,000)  
Lafayette Community Bancorp [Member]                
Business Acquisition [Line Items]                
Exchange ratio per share     0.8817%          
Cash paid for each share     $ 1.73          
Common stock, shares outstanding     1,856,679          
Common stock issued     1,636,888          
Market closing price per share               $ 17.45
Estimated transaction value               $ 34.5
Costs related to the acquisition     $ 1.7          
Total purchase price     34,465,000          
Net intangible assets acquired     2,085,000          
Acquisition of goodwill     $ 15,408,000          
Core deposit intangible amortization period           10 years    
Ownership interest percentage     5.00%          
Gain on remeasurement of equity interest             530,000  
Payments received as cash consideration             $ (20,425,000)  
Lafayette Community Bancorp [Member] | Maximum [Member]                
Business Acquisition [Line Items]                
Number of shares owned     100          
Share of common stock outstanding per share     $ 17.25          
First Farmers Bank & Trust Co [Member]                
Business Acquisition [Line Items]                
Net intangible assets acquired       $ 452,000,000        
Core deposit intangible amortization period       10 years        
Payments received as cash consideration       $ 11,000,000.0        
Business acquisition, loans assumed       $ 3,400,000        
Premium on deposits paid       3.00%        
Business acquisition, customer deposit balances       $ 14,800,000        
Salin Bancshares, Inc                
Business Acquisition [Line Items]                
Exchange ratio per share 23907.50%              
Cash paid for each share $ 87,417.17              
Common stock, shares outstanding 275              
Common stock issued 6,563,697              
Market closing price per share $ 15.65              
Estimated transaction value $ 126,700,000              
Costs related to the acquisition 5,600,000              
Total purchase price 126,722,000              
Net intangible assets acquired 19,818,000              
Acquisition of goodwill $ 31,358,000              
Payments received as cash consideration         $ (128,745,000)