Annual report pursuant to Section 13 and 15(d)

PENSION AND OTHER POSTRETIREMENT PLANS - Changes in Fair Value of Level 3 Plan Assets (Details)

v3.22.2.2
PENSION AND OTHER POSTRETIREMENT PLANS - Changes in Fair Value of Level 3 Plan Assets (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward]    
Fair value, beginning of year $ 208,344  
Fair value, end of year   $ 208,344
Level 3    
Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward]    
Fair value, beginning of year 14,311  
Fair value, end of year   14,311
Pension    
Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward]    
Fair value, beginning of year 208,344 168,134
Fair value, end of year 0 208,344
Pension | Level 3    
Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward]    
Fair value, beginning of year 14,311 15,273
Acquisitions 0 236
Dispositions (14,700) (2,144)
Realized Gains 139 272
Unrealized Gains (Losses) 250 674
Fair value, end of year $ 0 $ 14,311