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Segment Information (Narrative) (Details) $ in Thousands | Oct. 01, 2017 | Jun. 30, 2018 USD ($) | Sep. 30, 2017 USD ($)
--- | --- | --- | ---
Segment Reporting Information |  |  |
Number of Reportable Segments | 3 |  |
Segment Assets |  | $ 2,978,853 | $ 3,090,592
Space And Defense Controls |  |  |
Segment Reporting Information |  |  |
Segment Assets |  | 645,000 |
Industrial Systems |  |  |
Segment Reporting Information |  |  |
Segment Assets |  | 1,120,000 |
Corporate |  |  |
Segment Reporting Information |  |  |
Segment Assets |  | $ 81,000 | $ 270,411

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