| Document and Entity Information | Nov. 12, 2020 |
| Cover [Abstract] | |
| Entity Incorporation State Country Code | SC |
| Amendment Flag | false |
| Entity Central Index Key | 0000918965 |
| Document Type | 8-K |
| Document Period End Date | Nov. 12, 2020 |
| Entity Registrant Name | ScanSource, Inc. |
| Entity File Number | 00-26926 |
| Entity Tax Identification Number | 57-0965380 |
| Entity Address, Address Line One | 6 Logue Court |
| Entity Address, City or Town | Greenville |
| Entity Address, State or Province | SC |
| Entity Address, Postal Zip Code | 29615 |
| City Area Code | 864 |
| Local Phone Number | 288-2432 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common Stock, no par value |
| Trading Symbol | SCSC |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
