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Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Sep. 28, 2019
Accounting Policies [Abstract]  
Estimated useful life of property, plant and equipment by category Depreciation is determined under the straight‑line method based upon the estimated useful life of the asset as follows:

Buildings

 

40 Years

Building and land improvements

 

20 Years

Transportation equipment

 

3-10 Years

Storage facilities

 

7-30 Years

Office equipment

 

5-10 Years

Tanks and cylinders

 

10-40 Years

Computer software

 

3-7 Years

 

The weighted average estimated useful life of the Partnership’s storage facilities and tanks and cylinders is approximately 23 years and 28 years, respectively.