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Summary of Significant Accounting Policies - Revenue Recognition (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Summary of Significant Accounting Policies |  |  |  |
Unsatisfied performance obligation | $ 120,980 |  | $ 120,980 |
Revenue | 82,760 | $ 70,096 | 164,311 | $ 136,814
Deferred contract acquisition costs | 495 |  | 495 |
Software licenses transferred at a point in time |  |  |  |
Summary of Significant Accounting Policies |  |  |  |
Revenue | 12,131 | 9,629 | 25,583 | 22,054
Software licenses transferred over time |  |  |  |
Summary of Significant Accounting Policies |  |  |  |
Revenue | 16,593 | 10,483 | 32,334 | 19,962
Service revenues earned over time |  |  |  |
Summary of Significant Accounting Policies |  |  |  |
Revenue | $ 54,036 | $ 49,984 | $ 106,394 | $ 94,798
Minimum |  |  |  |
Summary of Significant Accounting Policies |  |  |  |
Subscription Term |  |  | 1 year |
Contract Balances |  |  |  |
Subscription term |  |  | 1 year |
Maximum |  |  |  |
Summary of Significant Accounting Policies |  |  |  |
Subscription Term |  |  | 3 years |
Contract Balances |  |  |  |
Subscription term |  |  | 3 years |

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