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Earnings Per Share Earnings Per Share (Tables) | 12 Months Ended
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Sep. 30, 2017
Earnings Per Share [Abstract] |
Summary of Basic and Diluted EPS |
|  | Fiscal
|  | 2017 |  | 2016 |  | 2015
Net loss from continuing operations attributable to controlling interest |  | $ | (20.6 | ) |  | $ | (1.6 | ) |  | $ | (242.1 | )
Net income (loss) from discontinued operations attributable to controlling interest |  | 126.6 |  |  | (197.2 | ) |  | (314.7 | )
Net income (loss) attributable to controlling interest |  | $ | 106.0 |  |  | $ | (198.8 | ) |  | $ | (556.8 | )
Weighted-average common shares outstanding - basic and diluted |  | 199,990 |  |  | 198,374 |  |  | 198,142 |
Net income (loss) per common share attributable to controlling interest: |  |  |  |  |  |
Basic loss from continuing operations |  | $ | (0.10 | ) |  | $ | (0.01 | ) |  | $ | (1.22 | )
Basic income (loss) from discontinued operations |  | 0.63 |  |  | (0.99 | ) |  | (1.59 | )
Basic |  | $ | 0.53 |  |  | $ | (1.00 | ) |  | $ | (2.81 | )
Diluted loss from continuing operations |  | $ | (0.10 | ) |  | $ | (0.01 | ) |  | $ | (1.22 | )
Diluted income (loss) from discontinued operations |  | 0.63 |  |  | (0.99 | ) |  | (1.59 | )
Diluted |  | $ | 0.53 |  |  | $ | (1.00 | ) |  | $ | (2.81 | )

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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