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PENSION AND OTHER POSTRETIREMENT PLANS - Benefit Payments Expected to be Paid (Details) $ in Thousands | Sep. 30, 2018 USD ($)
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Pension |
Defined Benefit Plan Disclosure [Line Items] |
2018 | $ 10,348
2019 | 10,602
2020 | 11,141
2021 | 12,408
2022 | 12,772
2023-2027 | 72,916
Total | 130,187
Other Postretirement |
Defined Benefit Plan Disclosure [Line Items] |
2018 | 1,075
2019 | 1,036
2020 | 1,062
2021 | 1,098
2022 | 1,117
2023-2027 | 6,062
Total | $ 11,450

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