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Revenue (Tables)
 6 Months Ended
Jun. 30, 2020
Revenue from Contract with Customer [Abstract]  
Summary of Revenue by Services
The following table summarizes revenue from contracts with customers for the three and six months ended June 30, 2020 and June 30, 2019 (in thousands):
Three Months Ended June 30,Six Months Ended June 30,
2020201920202019
SaaS subscriptions$29,580  $22,796  $57,970  $44,074  
Term license subscriptions7,379  10,103  25,172  19,660  
Maintenance and support4,459  3,961  8,712  7,683  
Professional services25,357  28,415  53,785  54,162  
Total revenue$66,775  $65,275  $145,639  $125,579