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Restructuring - Additional Information (Details) - IoT Products & Services Segment $ in Millions | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
May 31, 2017 employee | Jun. 30, 2017 USD ($) | Sep. 30, 2018 USD ($) employee | Sep. 30, 2019 USD ($)
Manufacturing Transition |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Number of employees eliminated | employee |  |  | 53 |
2017 Restructuring |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charge |  | $ 2.5 |  |
Employee Termination Costs | Manufacturing Transition |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charge |  |  | $ 0.5 |
Employee Termination Costs | 2017 Restructuring |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charge |  | 2.3 |  |
Contract Termination Costs | 2017 Restructuring |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charge |  | $ 0.2 |  |
Forecast | Minimum | Manufacturing Transition |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Effect on future earnings |  |  |  | $ 3.0
Forecast | Maximum | Manufacturing Transition |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Effect on future earnings |  |  |  | $ 5.0
United States | 2017 Restructuring |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Number of employees eliminated | employee | 10 |  |  |
France | 2017 Restructuring |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Number of employees eliminated | employee | 8 |  |  |

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