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Employee Benefits Plans (Tables) | 12 Months Ended
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Sep. 30, 2018
Retirement Benefits [Abstract] |
Schedule of MSP Benefit Expense Charged to Costs and Expenses | The amount of MSP benefit expense charged to costs and expenses was as follows:
(in thousands) | Fiscal Year Ended September 30,
| 2018 |  | 2017 |  | 2016
Service cost | $ | — |  |  | $ | 200 |  |  | $ | 213 |
Interest cost | 293 |  |  | 140 |  |  | 210 |
Recognized actuarial gain (loss) adjustment | 16 |  |  | (78 | ) |  | (5 | )
Total | $ | 309 |  |  | $ | 262 |  |  | $ | 418 |
Summary of Roll-Forward of MSP Benefit Obligation | The following provides a roll-forward of the MSP benefit obligation:
(in thousands) | September 30,
| 2018 |  | 2017
Change in projected benefit obligation: |  |  |  |  |
Benefit obligation at beginning of year | $ | 4,438 |  |  | $ | 4,543 |
Service cost | — |  |  | 200 |
Interest cost | 293 |  |  | 140 |
Benefits paid | (350 | ) |  | (367 | )
Recognized actuarial gain (loss) adjustment | 16 |  |  | (78 | )
Benefit obligation at end of year | $ | 4,397 |  |  | $ | 4,438 |
Funded status at end of year | $ | (4,397 | ) |  | $ | (4,438 | )

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- Definition Tabular disclosure of the change in the benefit obligation of pension plans and/or other employee benefit plans from the beginning to the end of the period, showing separately, if applicable, the effects of the following: service cost, interest cost, contributions by plan participants, actuarial gains and losses, foreign currency exchange rate changes, benefits paid, plan amendments, business combinations, divestitures, curtailments, settlements, and special and contractual termination benefits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920 + Details
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