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v3.19.3.a.u2

Document and Entity Information - shares | 3 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Jan. 22, 2020
Cover [Abstract] |  |
Document Type | 10-Q |
Entity Registrant Name | Oshkosh Corporation |
Amendment Flag | false |
Entity Central Index Key | 0000775158 |
Document Period End Date | Dec. 31, 2019 |
Current Fiscal Year End Date | --09-30 |
Document Fiscal Year Focus | 2020 |
Entity Filer Category | Large Accelerated Filer |
Document Fiscal Period Focus | Q1 |
Trading Symbol | OSK |
Entity Small Business | false |
Entity Emerging Growth Company | false |
Entity Common Stock, Shares Outstanding |  | 68,309,772
Entity Current Reporting Status | Yes |
Entity Shell Company | false |
Entity File Number | 1-31371 |
Entity Tax Identification Number | 39-0520270 |
Entity Address, Address Line One | P.O. Box 2566 |
Entity Address, City or Town | Oshkosh |
Entity Address, State or Province | WI |
Entity Address, Postal Zip Code | 54903-2566 |
City Area Code | 920 |
Local Phone Number | 502-3009 |
Security Exchange Name | NYSE |
Title of 12(b) Security | Common Stock $0.01 par value |
Entity Incorporation, State or Country Code | WI |
Document Quarterly Report | true |
Document Transition Report | false |
Entity Interactive Data Current | Yes |

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