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v3.20.2

Goodwill and Intangible Assets - Changes in the Carrying Amount of Goodwill by Reporting Segment (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2018
Goodwill [Roll Forward] |  |  |
Goodwill, beginning | $ 1,328.1 | $ 1,454.7 |
Foreign currency impact | 5.9 | (9.7) |
Impairment | 0.0 | (116.0) | $ 0.0
Deferred tax impact |  | 0.9 |
Omega Sea acquisition | 8.6 |  |
Allocated to Assets Held for Sale-Coevorden Operations | (10.6) |  |
Goodwill, ending | 1,332.0 | 1,328.1 | 1,454.7
HHI |  |  |
Goodwill [Roll Forward] |  |  |
Goodwill, beginning | 702.1 | 704.3 |
Foreign currency impact | 2.7 | (2.2) |
Impairment |  | 0.0 |
Deferred tax impact |  | 0.0 |
Omega Sea acquisition | 0.0 |  |
Allocated to Assets Held for Sale-Coevorden Operations | 0.0 |  |
Goodwill, ending | 704.8 | 702.1 | 704.3
GPC |  |  |
Goodwill [Roll Forward] |  |  |
Goodwill, beginning | 430.4 | 435.9 |
Foreign currency impact | 3.2 | (5.5) |
Impairment |  | 0.0 |
Deferred tax impact |  | 0.0 |
Omega Sea acquisition | 8.6 |  |
Allocated to Assets Held for Sale-Coevorden Operations | (10.6) |  |
Goodwill, ending | 431.6 | 430.4 | 435.9
H&G |  |  |
Goodwill [Roll Forward] |  |  |
Goodwill, beginning | 195.6 | 196.5 |
Foreign currency impact | 0.0 | 0.0 |
Impairment |  | 0.0 |
Deferred tax impact |  | 0.9 |
Omega Sea acquisition | 0.0 |  |
Allocated to Assets Held for Sale-Coevorden Operations | 0.0 |  |
Goodwill, ending | 195.6 | 195.6 | 196.5
HPC |  |  |
Goodwill [Roll Forward] |  |  |
Goodwill, beginning | 0.0 | 118.0 |
Foreign currency impact | 0.0 | (2.0) |
Impairment |  | (116.0) |
Deferred tax impact |  | 0.0 |
Omega Sea acquisition | 0.0 |  |
Allocated to Assets Held for Sale-Coevorden Operations | 0.0 |  |
Goodwill, ending | $ 0.0 | $ 0.0 | $ 118.0

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