v3.25.4
Cover - USD ($)
12 Months Ended
Sep. 30, 2025
Nov. 14, 2025
Mar. 31, 2025
Document Information [Line Items]      
Document Type 10-K/A    
Document Annual Report true    
Document Transition Report false    
Document Financial Statement Error Correction [Flag] false    
Entity Interactive Data Current Yes    
ICFR Auditor Attestation Flag true    
Amendment Flag true    
Amendment Description This Amendment No. 1 on Form 10-K/A (this “Amendment”) amends the Annual Report on Form 10-K for the fiscal year ended September 30, 2025 (the “Original 10-K Filing”) of Hillenbrand, Inc. (referred to as the “Company,” “Hillenbrand,” “we,” “our” or “us”), filed with the Securities and Exchange Commission (the “SEC”) on November 19, 2025.  The Original 10-K Filing omitted certain information required by Part III of Form 10-K (“Part III”) in reliance on General Instruction G(3) to Form 10-K (the “Instruction”), under which the information required by Part III (Items 10, 11, 12, 13 and 14) could be incorporated by reference into the Original 10-K Filing from our definitive proxy statement for our 2026 annual meeting of shareholders (the “Proxy Statement”) if the Proxy Statement were filed with the SEC not later than 120 days after the end of the fiscal year covered by the Original 10-K Filing.  Because the Proxy Statement will not be filed within 120 days after the end of such fiscal year, this Amendment is being filed as permitted by the Instruction to provide the information required by Part III. This Amendment also amends the cover page of the Original 10-K Filing to remove the reference to the incorporation by reference of information from the Proxy Statement and amends and restates Item 15 of Part IV of the Original 10-K Filing to reflect the filing with this Amendment of new certifications by our principal executive officer and principal financial officer.Except as described above, this Amendment does not amend or otherwise update any information in the Original 10-K Filing, and the Original 10-K Filing, as amended by this Form 10-K/A, continues to speak as of the date of the Original 10-K Filing.  Accordingly, this Amendment should be read in conjunction with the Original 10-K Filing and with our filings with the SEC subsequent to the Original 10-K Filing.    
Document Period End Date Sep. 30, 2025    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Documents Incorporated by Reference [Text Block] None    
Entity Information [Line Items]      
Entity Registrant Name HILLENBRAND, INC.    
Entity Central Index Key 0001417398    
Entity File Number 001-33794    
Entity Tax Identification Number 26-1342272    
Entity Incorporation, State or Country Code IN    
Current Fiscal Year End Date --09-30    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Shell Company false    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Public Float     $ 1,682,990,619
Entity Contact Personnel [Line Items]      
Entity Address, Address Line One One Batesville Boulevard    
Entity Address, City or Town Batesville    
Entity Address, State or Province IN    
Entity Address, Postal Zip Code 47006    
Entity Phone Fax Numbers [Line Items]      
City Area Code 812    
Local Phone Number 931-5000    
Entity Listings [Line Items]      
Title of 12(b) Security Common Stock, without par value    
Trading Symbol HI    
Security Exchange Name NYSE    
Entity Common Stock, Shares Outstanding   70,506,819