The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

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Other Intangible Assets - Additional Information (Detail) (USD $)	3 Months Ended		12 Months Ended
	Dec. 27, 2014	Dec. 28, 2013	Sep. 27, 2014
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangibles assets, impairment charge			$ 0
Amortization expense for intangibles	900,000us-gaap_AmortizationOfIntangibleAssets	1,000,000us-gaap_AmortizationOfIntangibleAssets
Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted average remaining lives of acquired intangible assets			1 year
Estimated annual amortization expense related to acquired intangible assets, 2015	4,000,000
Estimated annual amortization expense related to acquired intangible assets, 2016	4,000,000
Estimated annual amortization expense related to acquired intangible assets, 2017	4,000,000
Estimated annual amortization expense related to acquired intangible assets, 2018	4,000,000
Estimated annual amortization expense related to acquired intangible assets, 2019	4,000,000
Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted average remaining lives of acquired intangible assets			25 years
Estimated annual amortization expense related to acquired intangible assets, 2015	5,000,000
Estimated annual amortization expense related to acquired intangible assets, 2016	5,000,000
Estimated annual amortization expense related to acquired intangible assets, 2017	5,000,000
Estimated annual amortization expense related to acquired intangible assets, 2018	5,000,000
Estimated annual amortization expense related to acquired intangible assets, 2019	$ 5,000,000
Marketing-Related Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted average remaining lives of acquired intangible assets			8 years
Customer-Related Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted average remaining lives of acquired intangible assets			15 years
Other Acquired Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted average remaining lives of acquired intangible assets			14 years