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RETIREMENT PLANS (Tables) | 9 Months Ended
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Jun. 30, 2019
RETIREMENT PLANS |
Schedule of components of net periodic benefit cost | A summary of net periodic benefit expense for the Company’s defined benefit plans for the three and nine-month periods ended June 30, 2019 and 2018 is shown in the following table. Net periodic benefit cost for each period presented is comprised of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months | ​ | Nine Months
​ | ​ | Ended June 30, | ​ | Ended June 30,
(In thousands) |  | 2019 |  | 2018 |  | 2019 | ​ | 2018
Defined benefit plans | ​ | ​ |  | ​ |  | ​ |  | ​ |
Interest cost | ​ | $ | 875 |  | 821 |  | 2,626 |  | 2,461
Expected return on assets | ​ |  | (1,086) |  | (975) |  | (3,259) |  | (2,924)
Amortization of: | ​ |  | ​ |  |  |  | ​ |  |
Prior service cost | ​ |  | — |  | — |  | — |  | —
Actuarial loss | ​ |  | 487 |  | 548 |  | 1,461 |  | 1,644
Net periodic benefit cost | ​ | $ | 276 |  | 394 |  | 828 |  | 1,181
​

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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=118255775&loc=d3e1928-114920 + Details
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