XML 233 R38.htm IDEA: XBRL DOCUMENT v3.24.1.u1
Retirement Plans (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Mar. 31, 2024
Mar. 31, 2023
Retirement Benefits [Abstract]        
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax $ 0.2 $ 0.3 $ 0.4 $ 0.6