Quarterly report pursuant to Section 13 or 15(d)

Acquisitions - 2020 Acquisitions (Details)

v3.20.1
Acquisitions - 2020 Acquisitions (Details) - USD ($)
$ in Thousands
3 Months Ended
Jan. 22, 2020
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Dec. 31, 2018
Business Acquisition [Line Items]          
Closing costs   $ 59,462 $ 0    
Deferred obligation   33,711   $ 31,747 $ 52,142
Goodwill   1,663,142   $ 1,611,749  
Modern Message          
Business Acquisition [Line Items]          
Aggregate purchase price $ 64,700 64,718      
Closing costs $ 62,700 62,710      
Deferred obligation   2,008      
Deferred obligation, release period 150 days        
Goodwill $ 49,300 49,268      
Acquisition costs $ 300        
Developed technologies | Modern Message          
Business Acquisition [Line Items]          
Weighted average useful life 5 years        
Client relationships | Modern Message          
Business Acquisition [Line Items]          
Weighted average useful life 9 years        
Trade names | Modern Message          
Business Acquisition [Line Items]          
Weighted average useful life 5 years        
Maximum | Modern Message          
Business Acquisition [Line Items]          
Deferred obligation $ 2,000        
Restricted Stock | Modern Message          
Business Acquisition [Line Items]          
Aggregate grant date fair value   $ 10,700