XML 64 R53.htm IDEA: XBRL DOCUMENT v3.8.0.1
Business Combinations - Purchase Price (Details)
$ / shares in Units, $ in Thousands
1 Months Ended
Nov. 03, 2017
USD ($)
$ / shares
shares
Apr. 07, 2017
USD ($)
$ / shares
shares
Oct. 20, 2017
USD ($)
$ / shares
shares
Mar. 31, 2018
shares
Dec. 31, 2017
shares
Business Acquisition [Line Items]          
Number of NorthStar Banking Corporation common shares outstanding | shares       46,983,165 46,917,735
Gulf Shore Banc shares Inc [Member]          
Business Acquisition [Line Items]          
Shares exchanged for cash   $ 8,034      
Number of GulfShore Bancshares, Inc. common shares outstanding | shares   5,464      
Total purchase price   $ 70,917      
Per share exchange ratio   0.4807      
Number of shares of Seacoast common stock issued | shares   2,627      
Multiplied by common stock price per share | $ / shares   $ 23.94      
Value of common stock issued   $ 62,883      
Number of Palm Beach Community Bank Common shares outstanding | shares   5,464      
NorthStar Bank [Member]          
Business Acquisition [Line Items]          
Shares exchanged for cash     $ 4,701    
Number of NorthStar Banking Corporation common shares outstanding | shares     1,958    
Total purchase price     $ 32,855    
Cash paid for NorthStar Banking vested Corporation stock options     $ 801    
Per share exchange ratio     0.5605    
Number of shares of Seacoast common stock issued | shares     1,098    
Multiplied by common stock price per share | $ / shares     $ 24.92    
Value of common stock issued     $ 27,353    
Palm Beach Community Bank [Member]          
Business Acquisition [Line Items]          
Shares exchanged for cash $ 15,694        
Number of GulfShore Bancshares, Inc. common shares outstanding | shares 2,507        
Total purchase price $ 72,006        
Per share exchange ratio 0.9240        
Number of shares of Seacoast common stock issued | shares 2,316        
Multiplied by common stock price per share | $ / shares $ 24.31        
Value of common stock issued $ 56,312        
Number of Palm Beach Community Bank Common shares outstanding | shares 2,507