Annual report pursuant to Section 13 and 15(d)

PENSION AND OTHER POSTRETIREMENT PLANS - Weighted Average Asset Allocation and Target Allocation (Details)

v3.22.2.2
PENSION AND OTHER POSTRETIREMENT PLANS - Weighted Average Asset Allocation and Target Allocation (Details) - USD ($)
$ in Thousands
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2020
Defined Benefit Plan, Actual Plan Asset Allocations [Abstract]      
Fair value of plan assets   $ 208,344  
Pension      
Defined Benefit Plan, Actual Plan Asset Allocations [Abstract]      
Fair value of plan assets $ 0 208,344 $ 168,134
Equity securities | Pension      
Defined Benefit Plan, Actual Plan Asset Allocations [Abstract]      
Fair value of plan assets   4,075  
Fixed income, cash and cash equivalents | Pension      
Defined Benefit Plan, Actual Plan Asset Allocations [Abstract]      
Fair value of plan assets   189,958  
Other investments | Pension      
Defined Benefit Plan, Actual Plan Asset Allocations [Abstract]      
Fair value of plan assets   $ 14,311