| Document and Entity Information | Jul. 28, 2020 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Jul. 28, 2020 |
| Entity Registrant Name | POLARIS INC. |
| Entity Incorporation, State or Country Code | MN |
| Entity File Number | 001-11411 |
| Entity Tax Identification Number | 41-1790959 |
| Entity Address, Address Line One | 2100 Highway 55 |
| Entity Address, City or Town | Medina |
| Entity Address, State or Province | MN |
| Entity Address, Postal Zip Code | 55340 |
| City Area Code | 763 |
| Local Phone Number | 542-0500 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0000931015 |
| Title of 12(b) Security | Common Stock, $.01 par value per share |
| Trading Symbol | PII |
| Security Exchange Name | NYSE |
| Entity Information, Former Legal or Registered Name | Polaris Industries Inc. |
