Annual report pursuant to Section 13 and 15(d)

PENSION AND OTHER POSTRETIREMENT PLANS - Contributions During Fiscal Year (Details)

v3.8.0.1
PENSION AND OTHER POSTRETIREMENT PLANS - Contributions During Fiscal Year (Details)
$ in Thousands
12 Months Ended
Sep. 30, 2017
USD ($)
Principal retirement plan  
Defined Benefit Plan Disclosure [Line Items]  
Pension $ 6,180
Other Postretirement 0
Supplemental retirement plan  
Defined Benefit Plan Disclosure [Line Items]  
Pension 725
Other Postretirement 0
Other retirement plans  
Defined Benefit Plan Disclosure [Line Items]  
Pension 413
Other Postretirement 0
Other Postretirement  
Defined Benefit Plan Disclosure [Line Items]  
Pension 0
Other Postretirement $ 1,392