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Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2020 | Mar. 31, 2019 | Mar. 31, 2020 | Mar. 31, 2019
Disaggregation of Revenue [Line Items] |  |  |  |
Total Revenue | $ 73,447 | $ 65,764 | $ 135,764 | $ 128,077
North America, primarily the United States |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total Revenue | 57,374 | 48,869 | 104,910 | 95,204
Europe, Middle East & Africa |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total Revenue | 9,885 | 10,764 | 18,401 | 20,868
Rest of world |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total Revenue | 6,188 | 6,131 | 12,453 | 12,005
Transferred at a point in time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total Revenue | 66,765 | 60,725 | 123,065 | 118,188
Transferred over time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total Revenue | $ 6,682 | $ 5,039 | $ 12,699 | $ 9,889

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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(1)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
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