Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition - Narrative (Details)

v3.19.1
Revenue Recognition - Narrative (Details) - USD ($)
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Contract term Revenues are calculated based on the number of transactions processed monthly and will vary from month to month based on actual usage of these transaction-based services over the contract term, which is typically one year in duration.  
On demand revenue $ 74,100,000  
Deferred commissions period of benefit 3 years  
Amortized commission costs $ 1,800,000 $ 800,000
Capitalized commissions impairment loss $ 0 $ 0
Remaining performance obligation percentage 68.60%  
Period for satisfying 75% of remaining obligation 24 months  
On demand    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Contract term Certain clients commit to purchase our solutions for terms ranging from two to seven years.  
Remaining performance obligation $ 424,800,000