Quarterly report pursuant to Section 13 or 15(d)

Acquisitions (Narrative) (Details)

v3.10.0.1
Acquisitions (Narrative) (Details) - USD ($)
$ in Thousands
 1 Months Ended 3 Months Ended 9 Months Ended
Oct. 31, 2018
Aug. 31, 2018
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Jan. 01, 2018
Dec. 31, 2017
Business Acquisition [Line Items]                
Contingent consideration, liability     $ 1,939   $ 1,939     $ 2,104
Acquisition-related expenses     0 $ 55 913 $ 320    
Goodwill     $ 125,966   $ 125,966   $ 124,210 $ 124,210
Kestler Financial Group                
Business Acquisition [Line Items]                
Consideration for transaction   $ 7,917            
Cash paid in acquisition   1,683            
Cash payment on first anniversary   165            
Principal amount of liability   5,450            
Contingent consideration, liability   $ 619            
Fair value measurement, earn-out period   5 years            
Identifiable intangibles and other assets   $ 6,161            
Goodwill   $ 1,756            
Subsequent Event | Kestler Financial Group                
Business Acquisition [Line Items]                
Consideration for transaction $ 1,335              
Cash paid in acquisition 537              
Contingent consideration, liability 0              
Acquisition-related expenses 271              
Cash payment on each anniversary $ 266              
Period following closing 3 years              
Subsequent Event | Four Seasons Financial Group                
Business Acquisition [Line Items]                
Consideration for transaction $ 1,722              
Cash paid in acquisition 450              
Principal amount of liability 372              
Cash payment on each anniversary $ 450              
Period following closing 2 years              
Annual payment period 5 years