Summary of Significant Accounting Policies (Details)	12 Months Ended
	Sep. 27, 2014 WK Partnership	Sep. 28, 2013	Sep. 29, 2012
Summary of Significant Accounting Policies [Abstract]
Limited partner interest in the Operating Partnership (in hundredths)	100.00%
Minimum number of weeks in the fiscal year reporting calendar	52
Maximum number of weeks in the fiscal year reporting calendar	53
Minimum number of weeks in a fiscal quarter	13
Maximum number of weeks in a fiscal quarter	14
Goodwill [Abstract]
Projection period of estimated cash flows	10 years
Interest Rate Risk [Abstract]
Basis spread (in hundredths)	1.00%
Income Taxes [Abstract]
Number of limited partnerships included in the partnership structure	2
Net Income Per Unit [Abstract]
Additional dilutive common units included in computation of diluted income per Common Unit (in units)	269,867	222,419	141,570
Federal Funds Rate [Member]
Interest Rate Risk [Abstract]
Description of applicable interest rate on borrowings	Federal Funds Rate
Basis spread (in hundredths)	0.50%
LIBOR [Member]
Interest Rate Risk [Abstract]
Description of applicable interest rate on borrowings	LIBOR
Basis spread (in hundredths)	1.00%
Buildings [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of the asset (in years)	40 years
Building and land improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of the asset (in years)	20 years
Transportation equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of the asset (in years)	3 years
Transportation equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of the asset (in years)	20 years
Storage facilities [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of the asset (in years)	7 years
Storage facilities [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of the asset (in years)	40 years
Storage facilities [Member] | Weighted Average [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of the asset (in years)	21 years
Office equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of the asset (in years)	5 years
Office equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of the asset (in years)	10 years
Tanks and cylinders [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of the asset (in years)	10 years
Tanks and cylinders [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of the asset (in years)	40 years
Tanks and cylinders [Member] | Weighted Average [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of the asset (in years)	28 years
Computer software [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of the asset (in years)	3 years
Computer software [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of the asset (in years)	7 years