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

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 30
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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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- Definition

Fixed interest rate related to the interest rate derivative.

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No definition available.

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- Definition

The portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments representing (a) the amount of the hedge ineffectiveness and (b) the amount, if any, excluded from the assessment of hedge effectiveness.

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Derivatives and Fair Value Measurements - Narrative (Details) - USD ($)	12 Months Ended
	Sep. 30, 2017	Oct. 01, 2016	Oct. 03, 2015	May 05, 2017
Estimated unrealized gains, net of tax, expected to be reclassified in next 12 months	$ 2,000,000
Amount of debt outstanding	283,000,000	$ 250,000,000
Gains (losses) recognized in income for derivatives related to ineffective portions and amounts excluded from effectiveness testing	0	0	$ 0
Revolving Credit Facility \| Line of Credit
Amount of debt outstanding	108,000,000	75,000,000		$ 75,000,000
Derivatives designated as hedging instruments \| Derivatives in Cash Flow Hedging Relationships \| Forward currency forward contracts
Notional amount of forward exchange contracts	67,000,000	73,700,000
Fair value of derivative asset	2,000,000
Fair value of derivative liability		500,000
Derivatives designated as hedging instruments \| Derivatives in Cash Flow Hedging Relationships \| Interest rate swaps
Notional amount of forward exchange contracts		75,000,000		$ 75,000,000
Fixed interest rate				0.875%
Derivatives not designated as hedging instruments \| Forward currency forward contracts
Notional amount of forward exchange contracts	10,600,000	109,600,000
Fair value of derivative asset		$ 100,000
Fair value of derivative liability	$ 100,000