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Revenue Recognition (Tables)
6 Months Ended
May 31, 2021
Revenue from Contract with Customer [Abstract]  
Revenue from External Customers by Products and Services
Our revenues are derived from licensing our products, and from related services, which consist of maintenance, hosting services, and consulting and education. Information relating to revenue from external customers by revenue type is as follows (in thousands):
 
Three Months EndedSix Months Ended
(In thousands)May 31, 2021May 31, 2020May 31, 2021May 31, 2020
Performance obligations transferred at a point in time:
Software licenses$30,107 $19,663 $63,424 $50,292 
Performance obligations transferred over time:
Maintenance80,069 71,686 157,046 141,742 
Services12,312 9,034 23,298 18,032 
Total revenue$122,488 $100,383 $243,768 $210,066 
Revenue from External Customers from Different Geographical Areas
In the following table, revenue attributed to North America includes sales to customers in the U.S. and sales to certain multinational organizations. Revenue from EMEA, Latin America and the Asia Pacific region includes sales to customers in each region plus sales from the U.S. to distributors in these regions. Information relating to revenue from external customers from different geographical areas is as follows (in thousands):
 
Three Months EndedSix Months Ended
(In thousands)May 31, 2021May 31, 2020May 31, 2021May 31, 2020
North America$71,094 $56,564 $142,599 $121,977 
EMEA41,321 34,157 81,561 69,145 
Latin America3,753 3,346 7,246 7,346 
Asia Pacific6,320 6,316 12,362 11,598 
Total revenue$122,488 $100,383 $243,768 $210,066 
Schedule of Contract with Customer, Asset and Liability
As of May 31, 2021, invoicing of our long-term unbilled receivables is expected to occur as follows (in thousands):
2022$4,995 
20233,916 
2024162 
Total$9,073 
As of May 31, 2021, the changes in deferred revenue were as follows (in thousands):
Balance, December 1, 2020$193,295 
Billings and other253,103 
Revenue recognized(243,768)
Balance, May 31, 2021$202,630