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Revenue (Tables) | 6 Months Ended
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Mar. 31, 2020
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue | The following table summarizes our revenue by geographic location of our customers:
| Three months ended March 31, |  | Six months ended March 31,
($ in thousands) | 2020 |  | 2019 |  | 2020 |  | 2019
North America, primarily the United States | $ | 57,374 |  |  | $ | 48,869 |  |  | $ | 104,910 |  |  | $ | 95,204 |
Europe, Middle East & Africa | 9,885 |  |  | 10,764 |  |  | 18,401 |  |  | 20,868 |
Rest of world | 6,188 |  |  | 6,131 |  |  | 12,453 |  |  | 12,005 |
Total revenue | $ | 73,447 |  |  | $ | 65,764 |  |  | $ | 135,764 |  |  | $ | 128,077 |
10. REVENUE (CONTINUED) The following table summarizes our revenue by the timing of revenue recognition:
| Three months ended March 31, |  | Six months ended March 31,
($ in thousands) | 2020 |  | 2019 |  | 2020 |  | 2019
Transferred at a point in time | $ | 66,765 |  |  | $ | 60,725 |  |  | $ | 123,065 |  |  | $ | 118,188 |
Transferred over time | 6,682 |  |  | 5,039 |  |  | 12,699 |  |  | 9,889 |
Total revenue | $ | 73,447 |  |  | $ | 65,764 |  |  | $ | 135,764 |  |  | $ | 128,077 |
Contract with Customer, Asset and Liability | Changes in unearned revenue were:
($ in thousands) |  | Six months ended March 31, 2020
Unearned revenue, beginning of period |  | $ | 5,025 |
Billings |  | 19,553 |
Revenue recognized |  | (15,876 | )
Unearned revenue, end of period |  | $ | 8,702 |

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- Definition Tabular disclosure of contract balances and changes in contract balances. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130551-203045 + Details
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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
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