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Share-Based Compensation (Tables)
9 Months Ended
Sep. 30, 2021
Share-based Payment Arrangement [Abstract]  
Summary of share-based compensation expense related to share-based awards recorded in the statements of income The following table summarizes share-based compensation expense related to share-based awards recorded in the condensed consolidated statements of income, pursuant to ASC 718, Stock Compensation:
Three Months Ended September 30,Nine Months Ended September 30,
2021202020212020
Subscriptions, software services and maintenance$6,303 $4,555 $17,212 $13,176 
Selling, general and administrative expenses23,158 13,869 63,148 40,936 
Total share-based compensation expense$29,461 $18,424 $80,360 $54,112