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Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | $ 112,693 | $ 88,099 | $ 322,502 | $ 257,760
Subscription and support |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 98,912 | 75,850 | 275,053 | 214,907
XBRL professional services |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 9,003 | 7,798 | 33,558 | 29,543
Other services |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 4,778 | 4,451 | 13,891 | 13,310
Information technology |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 16,097 | 11,983 | 44,953 | 34,264
Diversified financials |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 13,538 | 10,665 | 38,094 | 31,232
Consumer discretionary |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 12,148 | 9,748 | 34,019 | 28,497
Healthcare |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 11,860 | 8,772 | 34,003 | 25,517
Industrials |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 11,826 | 9,365 | 33,739 | 27,768
Banks |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 9,940 | 8,959 | 30,247 | 25,914
Insurance |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 7,547 | 5,828 | 22,106 | 17,173
Energy |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 6,818 | 5,812 | 20,178 | 17,793
Utilities |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 6,040 | 3,538 | 16,795 | 10,707
Real estate |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 4,608 | 3,769 | 13,727 | 11,810
Materials |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | 4,570 | 3,824 | 13,040 | 10,735
Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | $ 7,701 | $ 5,836 | $ 21,601 | $ 16,350

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