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

Business Combination Upward Adjustment

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- Definition

Stock Outstanding During Period Shares Period Increase Decrease

+ References

No definition available.

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- Definition

Total current liabilities of the broker-dealer, less certain exceptions as defined.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher SEC
-Name Rule 15c3-1
-Number 240
-Section 15c3-1

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- Definition

Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SAB TOPIC 4.C)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187143-122770

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