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Earnings Per Share - SBH (Narrative) (Details) shares in Millions, $ in Millions |  | 3 Months Ended
--- | --- | ---
Jul. 13, 2018 USD ($) | Dec. 30, 2018 shares
Upward adjustment | $ 200.0 |
Increase in total outstanding shares | shares |  | 20.6
HRG [Member] |  |
Net indebtedness and transaction expenses | $ 328.2 |
HRG [Member] | HRG Common Stock [Member] |  |
Reverse stock split conversion | 0.1613 |

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