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Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Mar. 31, 2019 | Mar. 31, 2018
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Total Revenue | $ 65,764 | $ 54,548 | [1] | $ 128,077 | $ 99,503 | [1]
North America, primarily the United States |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Total Revenue | 48,869 | 39,169 |  | 95,204 | 68,506 |
Europe, Middle East & Africa |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Total Revenue | 10,764 | 9,504 |  | 20,868 | 19,660 |
Other locations |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Total Revenue | 6,131 | 5,875 |  | 12,005 | 11,337 |
IoT Products & Services Segment |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Total Revenue | 56,039 | 49,825 |  | 109,333 | 90,705 | [1]
IoT Products & Services Segment | Hardware product |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Total Revenue | 52,097 | 47,588 |  | 102,909 | 86,042 |
IoT Products & Services Segment | Services |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Total Revenue | 3,942 | 2,237 |  | 6,424 | 4,663 |
IoT Solutions Segment |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Total Revenue | 9,725 | 4,723 |  | 18,744 | 8,798 | [1]
IoT Solutions Segment | Solutions |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Total Revenue | $ 9,725 | $ 4,723 |  | $ 18,744 | $ 8,798 |
[1] | 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 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://fasb.org/us-gaap/role/ref/legacyRef -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=115205541&loc=SL114868664-224227 Reference 3: 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 4: 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 + Details
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