Basis of Presentation (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Dec. 27, 2014	Dec. 28, 2013
Basis of Presentation [Abstract]
Amortization expense on capitalized computer software	$ 0.6	$ 0.7
Life of warranty obligations, minimum (in months)	12 months
Life of warranty obligations for sales, maximum (in months)	24 months
Number of previous months historical warranty claims used to calculate warranty expense percentage (in months)	12 months

Life of warranty obligations for sales that include installation services, maximum.

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- Definition

Life of warranty obligations for sales that include installation services, minimum.

+ References

No definition available.

+ Details

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- Definition

The Company records general warranty provisions based on an estimated warranty expense percentage applied to current period revenue. The percentage applied reflects historical warranty claims experience over the preceding twelve-month period. Both the experience percentage and the warranty liability are evaluated on an ongoing basis for adequacy

+ References

No definition available.

+ Details

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- Details

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- Definition

For each income statement presented, the amount charged to expense for amortization of capitalized computer software costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 985

-SubTopic 20

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128487-111756

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 985

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756

+ Details

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