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Employee Benefit Plan | 9 Months Ended
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Jun. 30, 2013
Employee Benefit Plan | 10) Employee Benefit Plan
|  | Three Months Ended June 30, |  |  | Nine Months Ended June 30, |
(in thousands) |  | 2013 |  |  | 2012 |  |  | 2013 |  |  | 2012 |
Components of net periodic benefit cost: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Interest cost |  |  | 620 |  |  |  | 714 |  |  |  | 1,860 |  |  |  | 2,142 |
Expected return on plan assets |  |  | (948 | ) |  |  | (941 | ) |  |  | (2,844 | ) |  |  | (2,823 | )
Net amortization |  |  | 664 |  |  |  | 688 |  |  |  | 1,992 |  |  |  | 2,064 |
Net periodic benefit cost |  | $ | 336 |  |  | $ | 461 |  |  | $ | 1,008 |  |  | $ | 1,383 |
For the nine months ended June 30, 2013, the Partnership contributed $2.3 million and expects to make an additional $1.2 million contribution in fiscal 2013 to fund its pension obligation.

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- Definition The entire disclosure for pension and other postretirement benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 + Details
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