Significant Accounting Policies - Self-Insurance Programs (Details) - USD ($) $ in Millions	12 Months Ended
Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Self-Insurance Programs
Self Insurance Expense Adjustment	$ 6.3
Revenue Recognition
Sales returns and allowance, average of net sales (as a percent)	2.00%	2.00%	2.00%
Shipping and Handling
Shipping and handling costs	$ 56.2	$ 53.1	$ 52.2
Advertising Costs
Advertising costs	$ 93.0	$ 95.3	$ 90.2

Represents the sales returns and allowances, as a percentage of net sales.

No definition available.

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- Definition

Represents decrease in estimated future payments associated with self-insurance programs which in-turn categorized as favorable expense adjustment.

+ References

No definition available.

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- Definition

Benefits from Self-insurance Programs

+ References

No definition available.

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- References

No definition available.

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- Definition

Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 720
-SubTopic 35
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848

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- References

No definition available.

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- References

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- Definition

Cost incurred during the reporting period in transporting goods and services to customers. Includes freight-out costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=68058157&loc=d3e18780-107790

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 605
-SubTopic 45
-Section 50
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Handling Costs
-URI http://asc.fasb.org/extlink&oid=51575068

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-Name Accounting Standards Codification
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Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Shipping Costs
-URI http://asc.fasb.org/extlink&oid=51575562

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