Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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- Definition

Additional Amount Of Foreign Currency Forward Contracts

+ References

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- Definition

Notional Amount Of Foreign Currency Forward Contracts

+ References

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- Definition

Settlements Of Foreign Currency Exchange Forward Contracts

+ References

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- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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- Definition

Date the derivative contract matures, in CCYY-MM-DD format.

+ References

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- Definition

The estimated net amount of unrealized gains or losses on foreign currency cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=35736893&loc=d3e80748-113994

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Derivative Financial Instruments (Detail) - USD ($) $ in Millions	3 Months Ended
	Dec. 30, 2017	Sep. 30, 2017	Oct. 01, 2016	Sep. 01, 2015
Derivative [Line Items]
Derivative, Notional Amount		$ 50.3
Contract maturity date		Sep. 25, 2019
Foreign currency forward contracts settled		$ 5.4	$ 5.2
Derivative, Fixed Interest Rate			1.97%
Net amount of existing losses expected to be reclassified into earnings within the next 12 months		$ 2.3
Interest Rate Swap
Derivative [Line Items]
Derivative, Notional Amount				$ 25.0
Subsequent Event [Member]
Derivative [Line Items]
Contract maturity date	Dec. 24, 2019
Additional Amount Of Foreign Currency Forward Contracts	$ 5.0
Foreign currency forward contracts entered	$ 7.2