Annual report pursuant to Section 13 and 15(d)

Acquisitions (Identifiable Intangible Assets) (Details)

v3.6.0.2
Acquisitions (Identifiable Intangible Assets) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jan. 02, 2015
Oct. 15, 2014
Jul. 31, 2014
Dec. 31, 2016
Acquired Indefinite-lived Intangible Assets [Line Items]        
Estimated Useful Life       9 years 9 months 29 days
Technology        
Acquired Indefinite-lived Intangible Assets [Line Items]        
Estimated Useful Life       7 years 10 months 24 days
Renewals revenue        
Acquired Indefinite-lived Intangible Assets [Line Items]        
Estimated Useful Life       7 years 10 months 24 days
Trade names        
Acquired Indefinite-lived Intangible Assets [Line Items]        
Estimated Useful Life       7 years 8 months 12 days
SSN        
Acquired Indefinite-lived Intangible Assets [Line Items]        
Identifiable intangible assets $ 30,901      
SSN | Technology        
Acquired Indefinite-lived Intangible Assets [Line Items]        
Identifiable intangible assets $ 2,080      
Estimated Useful Life 12 years 6 months      
SSN | Relationships with customers        
Acquired Indefinite-lived Intangible Assets [Line Items]        
Identifiable intangible assets $ 26,654      
Estimated Useful Life 20 years      
SSN | Trade names        
Acquired Indefinite-lived Intangible Assets [Line Items]        
Identifiable intangible assets $ 1,756      
Estimated Useful Life 9 years      
SSN | Non-solicitation agreement        
Acquired Indefinite-lived Intangible Assets [Line Items]        
Identifiable intangible assets $ 411      
Estimated Useful Life 3 years      
KMS        
Acquired Indefinite-lived Intangible Assets [Line Items]        
Identifiable intangible assets   $ 10,859    
KMS | Relationships with financial advisors        
Acquired Indefinite-lived Intangible Assets [Line Items]        
Identifiable intangible assets   $ 9,192    
Estimated Useful Life   20 years    
KMS | Trade names        
Acquired Indefinite-lived Intangible Assets [Line Items]        
Identifiable intangible assets   $ 1,112    
Estimated Useful Life   9 years    
KMS | Non-solicitation agreement        
Acquired Indefinite-lived Intangible Assets [Line Items]        
Identifiable intangible assets   $ 555    
Estimated Useful Life   5 years    
Highland        
Acquired Indefinite-lived Intangible Assets [Line Items]        
Identifiable intangible assets     $ 45,587  
Highland | Technology        
Acquired Indefinite-lived Intangible Assets [Line Items]        
Identifiable intangible assets     $ 949  
Estimated Useful Life     4 years  
Highland | Renewals revenue        
Acquired Indefinite-lived Intangible Assets [Line Items]        
Identifiable intangible assets     $ 39,503  
Estimated Useful Life     8 years  
Highland | Trade names        
Acquired Indefinite-lived Intangible Assets [Line Items]        
Identifiable intangible assets     $ 2,864  
Estimated Useful Life     9 years  
Highland | Non-solicitation agreement        
Acquired Indefinite-lived Intangible Assets [Line Items]        
Identifiable intangible assets     $ 2,271  
Estimated Useful Life     3 years