Annual report pursuant to Section 13 and 15(d)

PENSION AND OTHER POSTRETIREMENT PLANS - Benefit Payments Expected to be Paid (Details)

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PENSION AND OTHER POSTRETIREMENT PLANS - Benefit Payments Expected to be Paid (Details)
$ in Thousands
Sep. 30, 2017
USD ($)
Pension  
Defined Benefit Plan Disclosure [Line Items]  
2018 $ 10,137
2019 10,586
2020 10,983
2021 11,447
2022 12,811
2023-2027 72,463
Total 128,427
Other Postretirement  
Defined Benefit Plan Disclosure [Line Items]  
2018 1,044
2019 1,072
2020 1,013
2021 1,044
2022 1,094
2023-2027 6,004
Total $ 11,271