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Revenue (Tables) | 6 Months Ended
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Mar. 31, 2019
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue | Net sales of services and solutions disaggregated by product group:
| Three months ended March 31, |  | Six months ended March 31,
($ in thousands) | 2019 |  | 2018 (as adjusted)* |  | 2019 |  | 2018 (as adjusted)*
IoT Products & Services Segment |  |  |  |  |  |  |
Hardware product | $ | 52,097 |  |  | $ | 47,588 |  |  | $ | 102,909 |  |  | $ | 86,042 |
Services | 3,942 |  |  | 2,237 |  |  | 6,424 |  |  | 4,663 |
Total IoT Products & Services Segment | 56,039 |  |  | 49,825 |  |  | 109,333 |  |  | 90,705 |
IoT Solutions Segment |  |  |  |  |  |  |
Solutions | 9,725 |  |  | 4,723 |  |  | 18,744 |  |  | 8,798 |
Total Revenue | $ | 65,764 |  |  | $ | 54,548 |  |  | $ | 128,077 |  |  | $ | 99,503 |
*Prior period information has been restated for the adoption of ASU No. 2014-09, “Revenue from Contracts with Customers (Topic 606),” which we adopted on October 1, 2018. The following summarizes our revenue by geographic location of our customers:
| Three months ended March 31, |  | Six months ended March 31,
($ in thousands) | 2019 |  | 2018 (as adjusted)* |  | 2019 |  | 2018 (as adjusted)*
North America, primarily the United States | $ | 48,869 |  |  | $ | 39,169 |  |  | $ | 95,204 |  |  | $ | 68,506 |
Europe, Middle East & Africa | 10,764 |  |  | 9,504 |  |  | 20,868 |  |  | 19,660 |
Other | 6,131 |  |  | 5,875 |  |  | 12,005 |  |  | 11,337 |
Total revenue | $ | 65,764 |  |  | $ | 54,548 |  |  | $ | 128,077 |  |  | $ | 99,503 |
*Prior period information has been restated for the adoption of ASU No. 2014-09, “Revenue from Contracts with Customers (Topic 606),” which we adopted on October 1, 2018.
Contract with Customer, Asset and Liability | Changes in unearned revenue were as follows:
|  | Six months ended March 31,
($ in thousands) |  | 2019
Unearned revenue, beginning of period* |  | $ | 3,933 |
Billings |  | 13,613 |
Revenue recognized |  | (10,497 | )
Unearned revenue, end of period |  | $ | 7,049 |
*Prior period information has been restated for the adoption of ASU No. 2014-09, “Revenue from Contracts with Customers (Topic 606),” which we adopted on October 1, 2018.

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- Definition Tabular disclosure of contract balances and changes in contract balances. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=109196051&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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045 + Details
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