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Employee Benefit Plans (Tables) | 12 Months Ended
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Sep. 27, 2014
Employee Benefit Plans [Abstract] |
Schedule of defined benefit plans disclosure | The following tables provide a reconciliation of the changes in the benefit obligations and the fair value of the plan assets for fiscal 2014 and 2013 and a statement of the funded status for both years. Under the Partnership’s cash balance defined benefit pension plan, the accumulated benefit obligation and the projected benefit obligation are the same.
|  | Pension Benefits |  |  | Retiree Health and Life Benefits |
|  | 2014 |  |  | 2013 |  |  | 2014 |  |  | 2013 |
Reconciliation of benefit obligations: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Benefit obligation at beginning of year |  | $ | 148,631 |  |  | $ | 165,906 |  |  | $ | 17,754 |  |  | $ | 20,232 |
Service cost |  |  | — |  |  |  | — |  |  |  | 5 |  |  |  | 8 |
Interest cost |  |  | 5,774 |  |  |  | 5,229 |  |  |  | 640 |  |  |  | 586 |
Actuarial loss (gain) |  |  | 8,459 |  |  |  | (11,446 | ) |  |  | (278 | ) |  |  | (1,784 | )
Lump sum benefits paid |  |  | (5,401 | ) |  |  | (3,155 | ) |  |  | — |  |  |  | — |
Ordinary benefits paid |  |  | (7,627 | ) |  |  | (7,903 | ) |  |  | (1,167 | ) |  |  | (1,288 | )
Benefit obligation at end of year |  | $ | 149,836 |  |  | $ | 148,631 |  |  | $ | 16,954 |  |  | $ | 17,754 |
Reconciliation of fair value of plan assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of plan assets at beginning of year |  | $ | 120,776 |  |  | $ | 133,873 |  |  | $ | — |  |  | $ | — |
Actual return on plan assets |  |  | 10,023 |  |  |  | (2,039 | ) |  |  | — |  |  |  | — |
Employer contributions |  |  | — |  |  |  | — |  |  |  | 1,167 |  |  |  | 1,288 |
Lump sum benefits paid |  |  | (5,401 | ) |  |  | (3,155 | ) |  |  | — |  |  |  | — |
Ordinary benefits paid |  |  | (7,627 | ) |  |  | (7,903 | ) |  |  | (1,167 | ) |  |  | (1,288 | )
Fair value of plan assets at end of year |  | $ | 117,771 |  |  | $ | 120,776 |  |  | $ | — |  |  | $ | — |
Funded status: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Funded status at end of year |  | $ | (32,065 | ) |  | $ | (27,855 | ) |  | $ | (16,954 | ) |  | $ | (17,754 | )
Amounts recognized in consolidated balance sheets consist of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net amount recognized at end of year |  | $ | (32,065 | ) |  | $ | (27,855 | ) |  | $ | (16,954 | ) |  | $ | (17,754 | )
Less: Current portion |  |  | — |  |  |  | — |  |  |  | 1,276 |  |  |  | 1,427 |
Non-current benefit liability |  | $ | (32,065 | ) |  | $ | (27,855 | ) |  | $ | (15,678 | ) |  | $ | (16,327 | )
Amounts not yet recognized in net periodic benefit cost and included in accumulated other comprehensive income (loss): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Actuarial net (loss) gain |  | $ | (49,034 | ) |  | $ | (49,986 | ) |  | $ | 3,780 |  |  | $ | 3,683 |
Prior service credits |  |  | — |  |  |  | — |  |  |  | 889 |  |  |  | 1,379 |
Net amount recognized in accumulated other comprehensive |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(loss) income |  | $ | (49,034 | ) |  | $ | (49,986 | ) |  | $ | 4,669 |  |  | $ | 5,062 |
Percentage allocation of plan assets | The following table presents the actual allocation of assets held in trust as of:
|  | September 27, 2014 |  |  | September 28, 2013 |
Fixed income securities |  |  | 85 | % |  |  | 85 | %
Equity securities |  |  | 15 | % |  |  | 15 | %
|  |  | 100 | % |  |  | 100 | %
Schedule of measurement of partnership's pension plan assets by category | The following table describes the measurement of the Partnership’s pension plan assets by asset category as of:
|  | September 27, 2014 |  |  | September 28, 2013 |
Short term investments (1) |  | $ | 1,500 |  |  | $ | 1,516 |
Equity securities: (1) (2) |  |  |  |  |  |  |  |
Domestic |  |  | 6,370 |  |  |  | 11,780 |
International |  |  | 10,916 |  |  |  | 5,959 |
Fixed income securities (1) (3) |  |  | 98,985 |  |  |  | 101,521 |
|  | $ | 117,771 |  |  | $ | 120,776 |
(1) | Includes funds which are not publicly traded and are valued at the net asset value of the units provided by the fund issuer.
(2) | Includes funds which invest primarily in a diversified portfolio of publicly traded U.S. and Non-U.S. common stock.
(3) | Includes funds which invest primarily in publicly traded and non-publicly traded, investment grade corporate bonds, U.S. government bonds and asset-backed securities.
Schedule of expected benefit payments | There are no projected minimum funding requirements under the Partnership’s defined benefit pension plan for fiscal 2015. Estimated future benefit payments for both pension and retiree health and life benefits are as follows:
Fiscal Year |  | Pension Benefits |  |  | Retiree Health and Life Benefits |
2015 |  | $ | 32,316 |  |  | $ | 1,276 |
2016 |  |  | 12,632 |  |  |  | 1,202 |
2017 |  |  | 11,194 |  |  |  | 1,122 |
2018 |  |  | 11,317 |  |  |  | 1,048 |
2019 |  |  | 10,244 |  |  |  | 972 |
2020 through 2024 |  |  | 45,032 |  |  |  | 3,599 |
Schedule of net benefit costs | The following table provides the components of net periodic benefit costs included in operating expenses for fiscal 2014, 2013 and 2012:
|  | Pension Benefits |  |  | Retiree Health and Life Benefits |
|  | 2014 |  |  | 2013 |  |  | 2012 |  |  | 2014 |  |  | 2013 |  |  | 2012 |
Service cost |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 5 |  |  | $ | 8 |  |  | $ | 7 |
Interest cost |  |  | 5,774 |  |  |  | 5,229 |  |  |  | 6,311 |  |  |  | 640 |  |  |  | 586 |  |  |  | 802 |
Expected return on plan assets |  |  | (5,102 | ) |  |  | (5,281 | ) |  |  | (5,665 | ) |  |  | — |  |  |  | — |  |  |  | — |
Amortization of prior service credit |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (490 | ) |  |  | (490 | ) |  |  | (490 | )
Recognized net actuarial loss |  |  | 4,492 |  |  |  | 5,285 |  |  |  | 5,271 |  |  |  | (181 | ) |  |  | — |  |  |  | — |
Net periodic benefit costs |  | $ | 5,164 |  |  | $ | 5,233 |  |  | $ | 5,917 |  |  | $ | (26 | ) |  | $ | 104 |  |  | $ | 319 |
Schedule of assumptions used | The assumptions used in the measurement of the Partnership’s benefit obligations as of September 27, 2014 and September 28, 2013 are shown in the following table:
|  | Pension Benefits |  |  | Retiree Health and Life Benefits |
|  | 2014 |  |  | 2013 |  |  | 2014 |  |  | 2013 |
Weighted-average discount rate |  |  | 3.875 | % |  |  | 4.375 | % |  |  | 3.500 | % |  |  | 3.750 | %
Average rate of compensation increase |  |  | n/a |  |  |  | n/a |  |  |  | n/a |  |  |  | n/a |
Health care cost trend |  |  | n/a |  |  |  | n/a |  |  |  | 7.120 | % |  |  | 7.330 | %
The assumptions used in the measurement of net periodic pension benefit and postretirement benefit costs for fiscal 2014, 2013 and 2012 are shown in the following table:
|  | Pension Benefits |  |  | Retiree Health and Life Benefits |
|  | 2014 |  |  | 2013 |  |  | 2012 |  |  | 2014 |  |  | 2013 |  |  | 2012 |
Weighted-average discount rate |  |  | 4.375 | % |  |  | 3.500 | % |  |  | 4.375 | % |  |  | 3.750 | % |  |  | 3.000 | % |  |  | 4.000 | %
Average rate of compensation increase |  |  | n/a |  |  |  | n/a |  |  |  | n/a |  |  |  | n/a |  |  |  | n/a |  |  |  | n/a |
Weighted-average expected long- term rate of return on plan assets |  |  | 4.900 | % |  |  | 4.500 | % |  |  | 4.800 | % |  |  | n/a |  |  |  | n/a |  |  |  | n/a |
Health care cost trend |  |  | n/a |  |  |  | n/a |  |  |  | n/a |  |  |  | 7.330 | % |  |  | 7.530 | % |  |  | 7.740 | %
Total contributions made to multiemployer pension plans | While no multiemployer pension plan that the Partnership contributed to is individually significant to the Partnership, the table below discloses the three largest MEPPs to which the Partnership contributes. The financial health of a MEPP is indicated by the zone status, as defined by the PPA, which represents the funded status of the plan as certified by the plan’s actuary. Plans in the red zone are less than 65% funded, the yellow zone are between 65% and 80% funded, and green zone are at least 80% funded. Total contributions made by the Partnership to multiemployer pension plans for the fiscal year ended September 27, 2014 are shown below and reflect contributions made from the Inergy Propane Acquisition Date.
|  | EIN/Pension Plan Number |  | PPA Zone Status |  | FIP/RP Status |  | Contributions |  |  | Contributions greater than 5% of Total Plan Contributions |  | Expiration date of CBA
Pension Fund |  |  | 2014 |  | 2013 |  |  | 2014 |  |  | 2013 |  |  | 2012 |  |  |
New England Teamsters & Trucking Industry Pension Fund |  | 04-6372430 |  | Red (a) |  | Red (a) |  | Implemented |  | $ | 616 |  |  | $ | 562 |  |  | $ | 30 |  |  | No |  | April 2016 - March 2017
Local 282 Pension Trust Fund |  | 11-6245313 |  | Green (b) |  | Green (b) |  | n/a |  |  | 336 |  |  |  | 284 |  |  |  | 66 |  |  | No |  | July 2019
Teamsters Industrial Employees Pension Fund |  | 22-6099363 |  | Red (c) |  | Red (c) |  | Implemented |  |  | 185 |  |  |  | 179 |  |  |  | 15 |  |  | No |  | June 2017
Other (d) |  |  |  |  |  |  |  |  |  |  | 31 |  |  |  | 137 |  |  |  | 48 |  |  | No |  | n/a
|  |  |  |  |  |  |  |  |  | $ | 1,168 |  |  | $ | 1,162 |  |  | $ | 159 |  |  |  |  |
(a) | Based on most recent available valuation information for plan years ended September 2013.
(b) | Based on most recent available valuation information for plan years ended February 2014.
(c) | Based on most recent available valuation information for plan years ended December 2013.
(d) | Includes the MEPPs from which the Partnership withdrew in fiscal 2013.

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- Definition Tabular disclosure of the major categories of plan assets of pension plans and/or other employee benefit plans. This information may include, but is not limited to, the target allocation of plan assets, the fair value of each major category of plan assets, and the level within the fair value hierarchy in which the fair value measurements fall. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(5) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of one or more of the entity's defined benefit pension plans or one or more other defined benefit postretirement plans, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e2417-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=34716465&loc=d3e4179-114921 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e2439-114920 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e2410-114920 + Details
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