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Financial Instruments and Risk Management (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended 12 Months Ended
Sep. 27, 2014
Location
State
Sep. 28, 2013
Sep. 27, 2014
Customer Concentration Risk [Member]
Revenues [Member]
Sep. 28, 2013
Customer Concentration Risk [Member]
Revenues [Member]
Sep. 29, 2012
Customer Concentration Risk [Member]
Revenues [Member]
Sep. 27, 2014
Supplier Concentration Risk [Member]
Propane Purchases [Member]
Sep. 27, 2014
Supplier Concentration Risk [Member]
Propane Purchases [Member]
Crestwood Midstream Partners L.P [Member]
Sep. 27, 2014
Supplier Concentration Risk [Member]
Propane Purchases [Member]
Targa Liquids Marketing and Trade [Member]
Sep. 27, 2014
Supplier Concentration Risk [Member]
Propane Purchases [Member]
Enterprise Products Partners L.P. [Member]
Sep. 27, 2014
Minimum [Member]
Sep. 27, 2014
Maximum [Member]
Sep. 27, 2014
Commodity-Related Derivatives [Member]
Sep. 28, 2013
Commodity-Related Derivatives [Member]
Sep. 27, 2014
Interest Rate Swaps [Member]
Sep. 28, 2013
Interest Rate Swaps [Member]
Sep. 27, 2014
Derivatives Not Designated as Hedging Instruments [Member]
Sep. 28, 2013
Derivatives Not Designated as Hedging Instruments [Member]
Sep. 27, 2014
Derivatives Not Designated as Hedging Instruments [Member]
Commodity-Related Derivatives [Member]
Sep. 28, 2013
Derivatives Not Designated as Hedging Instruments [Member]
Commodity-Related Derivatives [Member]
Sep. 27, 2014
Derivatives Not Designated as Hedging Instruments [Member]
Commodity-Related Derivatives [Member]
Other Current Assets [Member]
Sep. 28, 2013
Derivatives Not Designated as Hedging Instruments [Member]
Commodity-Related Derivatives [Member]
Other Current Assets [Member]
Sep. 27, 2014
Derivatives Not Designated as Hedging Instruments [Member]
Commodity-Related Derivatives [Member]
Other Assets [Member]
Sep. 28, 2013
Derivatives Not Designated as Hedging Instruments [Member]
Commodity-Related Derivatives [Member]
Other Assets [Member]
Sep. 27, 2014
Derivatives Not Designated as Hedging Instruments [Member]
Commodity-Related Derivatives [Member]
Other Current Liabilities [Member]
Sep. 28, 2013
Derivatives Not Designated as Hedging Instruments [Member]
Commodity-Related Derivatives [Member]
Other Current Liabilities [Member]
Sep. 27, 2014
Derivatives Not Designated as Hedging Instruments [Member]
Commodity-Related Derivatives [Member]
Other Liabilities [Member]
Sep. 28, 2013
Derivatives Not Designated as Hedging Instruments [Member]
Commodity-Related Derivatives [Member]
Other Liabilities [Member]
Sep. 27, 2014
Derivatives Designated as Hedging Instruments [Member]
Interest Rate Swaps [Member]
Sep. 28, 2013
Derivatives Designated as Hedging Instruments [Member]
Interest Rate Swaps [Member]
Sep. 27, 2014
Derivatives Designated as Hedging Instruments [Member]
Interest Rate Swaps [Member]
Other Current Liabilities [Member]
Sep. 28, 2013
Derivatives Designated as Hedging Instruments [Member]
Interest Rate Swaps [Member]
Other Current Liabilities [Member]
Sep. 27, 2014
Derivatives Designated as Hedging Instruments [Member]
Interest Rate Swaps [Member]
Other Liabilities [Member]
Sep. 28, 2013
Derivatives Designated as Hedging Instruments [Member]
Interest Rate Swaps [Member]
Other Liabilities [Member]
Derivatives, Fair Value [Line Items]                                                                  
Fair value - assets $ 11,672 $ 6,438                   $ 9,533 $ 3,634 $ 2,139 $ 2,804 $ 3,986 $ 3,262     $ 3,924 $ 2,546 $ 62 $ 716                    
Fair value - liabilities 10,806 6,034                   7,127 802 3,679 5,232     1,580 430         1,527 430 53 0 1,540 2,428 1,257 1,307 283 1,121
Weighted average maturity of outstanding commodity-related derivatives                   4 months 5 months                                            
Reconciliation of beginning and ending balances of assets measured at fair value on recurring basis using significant unobservable inputs [Rollforward]                                                                  
Beginning balance of over-the-counter options 1,847 5,002                                                              
Beginning balance realized during the period (1,166) (4,400)                                                              
Contracts purchased during the period 1,145 1,825                                                              
Change in the fair value of outstanding contracts (314) (580)                                                              
Ending balance of over-the-counter options 1,512 1,847                                                              
Reconciliation of beginning and ending balances of liabilities measured at fair value on recurring basis using significant unobservable inputs [Rollforward]                                                                  
Beginning balance of over-the-counter options 0 1,209                                                              
Beginning balance realized during the period 0 (1,182)                                                              
Contracts purchased during the period 0 0                                                              
Change in the fair value of outstanding contracts 0 (27)                                                              
Ending balance of over-the-counter options $ 0 $ 0                                                              
Concentrations [Abstract]                                                                  
Number of locations served by the Partnership 710                                                                
Number of states which the Partnership operates 41                                                                
Minimum concentration risk threshold accounted for by a single customer or supplier (in hundredths)     10.00% 10.00% 10.00% 10.00%                                                      
Concentration percentage of propane supply provided by suppliers (in hundredths)             19.00% 13.00% 13.00%