Quarterly report pursuant to Section 13 or 15(d)

Other Comprehensive Income (Loss) - Schedule of changes in accumulated other comprehensive income (loss) (Details)

v3.23.1
Other Comprehensive Income (Loss) - Schedule of changes in accumulated other comprehensive income (loss) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Mar. 31, 2023
Mar. 31, 2022
Accumulated Other Comprehensive Income (Loss), before Tax [Roll Forward]        
Balance at the beginning of the period     $ (155.6)  
Other comprehensive income before reclassifications        
Before tax amount     66.5 $ (3.7)
Tax expense     (1.2) (0.2)
After tax amount     65.3 (3.9)
Amounts reclassified from accumulated other comprehensive loss (2)     (1.1) 2.2
Total changes in other comprehensive income (loss), net of tax $ 17.7 $ (5.5) 64.2 (1.7)
Balance at the end of the period (91.4)   (91.4)  
Pension and Postretirement        
Accumulated Other Comprehensive Income (Loss), before Tax [Roll Forward]        
Balance at the beginning of the period     (32.8) (49.2)
Other comprehensive income before reclassifications        
Before tax amount     0.0 0.0
Tax expense     0.0 0.0
After tax amount     0.0 0.0
Amounts reclassified from accumulated other comprehensive loss (2)     (1.5) 1.4
Total changes in other comprehensive income (loss), net of tax     (1.5) 1.4
Balance at the end of the period (34.3) (47.8) (34.3) (47.8)
Currency Translation (1)        
Accumulated Other Comprehensive Income (Loss), before Tax [Roll Forward]        
Balance at the beginning of the period     (113.7) 13.1
Other comprehensive income before reclassifications        
Before tax amount     62.4 (4.7)
Tax expense     0.0 0.0
After tax amount     62.4 (4.7)
Amounts reclassified from accumulated other comprehensive loss (2)     0.0 0.0
Total changes in other comprehensive income (loss), net of tax     62.4 (4.7)
Balance at the end of the period (51.3) 8.4 (51.3) 8.4
Net Unrealized (Loss) Gain on Derivative Instruments        
Accumulated Other Comprehensive Income (Loss), before Tax [Roll Forward]        
Balance at the beginning of the period     (9.1) (10.2)
Other comprehensive income before reclassifications        
Before tax amount     4.1 1.3
Tax expense     (1.2) (0.2)
After tax amount     2.9 1.1
Amounts reclassified from accumulated other comprehensive loss (2)     0.4 0.8
Total changes in other comprehensive income (loss), net of tax     3.3 1.9
Balance at the end of the period (5.8) (8.3) (5.8) (8.3)
Total Attributable to Hillenbrand, Inc.        
Accumulated Other Comprehensive Income (Loss), before Tax [Roll Forward]        
Balance at the beginning of the period     (155.6) (46.3)
Other comprehensive income before reclassifications        
Before tax amount     66.5 (3.4)
Tax expense     (1.2) (0.2)
After tax amount     65.3 (3.6)
Amounts reclassified from accumulated other comprehensive loss (2)     (1.1) 2.2
Total changes in other comprehensive income (loss), net of tax     64.2 (1.4)
Balance at the end of the period (91.4) (47.7) (91.4) (47.7)
Noncontrolling Interests        
Other comprehensive income before reclassifications        
Before tax amount     0.0 (0.3)
Tax expense     0.0 0.0
After tax amount     0.0 (0.3)
Amounts reclassified from accumulated other comprehensive loss (2)     0.0 0.0
Total changes in other comprehensive income (loss), net of tax $ 0.2 $ (0.2) $ 0.0 $ (0.3)