Annual report pursuant to Section 13 and 15(d)

Business Acquisitions (Schedule of Assets Acquired and Liabilities Assumed) (Details)

v3.20.4
Business Acquisitions (Schedule of Assets Acquired and Liabilities Assumed) (Details) - USD ($)
Dec. 31, 2020
Dec. 31, 2019
May 01, 2019
Apr. 01, 2019
Jan. 02, 2019
Dec. 31, 2018
Jan. 02, 2018
Business Acquisition [Line Items]              
Goodwill $ 906,773,000 $ 879,850,000       $ 519,102,000  
Folio Dynamics              
Business Acquisition [Line Items]              
Cash and cash equivalents             $ 4,876,000
Accounts receivable             4,962,000
Prepaid expenses and other current assets             3,773,000
Property and equipment, net             927,000
Other non-current assets             441,000
Identifiable tangible assets acquired             135,700,000
Goodwill             79,891,000
Total assets acquired             230,570,000
Accounts payable             (5,358,000)
Accrued expenses             (7,907,000)
Deferred tax liability             (23,300,000)
Deferred revenue             (806,000)
Other non-current liabilities             (64,000)
Total liabilities assumed             (37,435,000)
Total net assets acquired             $ 193,135,000
Private AI Company              
Business Acquisition [Line Items]              
Total tangible assets acquired         $ 144,000    
Identifiable tangible assets acquired         4,100,000    
Goodwill         21,507,000    
Expected tax deductible amount $ 0            
Total liabilities assumed         (688,000)    
Total net assets acquired         $ 25,063,000    
PortfolioCenter              
Business Acquisition [Line Items]              
Total tangible assets acquired       $ 13,000      
Identifiable tangible assets acquired       11,700,000      
Goodwill       15,587,000      
Expected tax deductible amount       15,587,000      
Total liabilities assumed       (1,600,000)      
Total net assets acquired       $ 25,700,000      
PIEtech              
Business Acquisition [Line Items]              
Cash and cash equivalents     $ 6,360,000        
Accounts receivable     3,782,000        
Prepaid expenses and other current assets     969,000        
Property and equipment, net     6,057,000        
Other non-current assets     4,274,000        
Operating lease right-of-use assets, net     2,012,000        
Identifiable tangible assets acquired     253,000,000        
Goodwill     323,951,000        
Total assets acquired     600,405,000        
Accounts payable and accrued expenses     (1,661,000)        
Operating lease liabilities     (2,012,000)        
Deferred tax liability     (68,534,000)        
Deferred revenue     (7,000,000)        
Total liabilities assumed     (79,207,000)        
Total net assets acquired     $ 521,198,000