| Document Document | Dec. 16, 2021 |
| Cover Page [Abstract] | |
| Entity Central Index Key | 0000945841 |
| Title of 12(b) Security | Common Stock, par value $0.001 per share |
| Entity Registrant Name | POOL CORPORATION |
| Document Type | 8-K |
| Document Period End Date | Dec. 16, 2021 |
| Entity File Number | 0-26640 |
| Entity Incorporation, State or Country Code | DE |
| Entity Tax Identification Number | 36-3943363 |
| Entity Address, Address Line One | 109 Northpark Boulevard, |
| Entity Address, City or Town | Covington, |
| Entity Address, State or Province | LA |
| Entity Address, Postal Zip Code | 70433-5001 |
| City Area Code | (985) |
| Local Phone Number | 892-5521 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Trading Symbol | POOL |
| Security Exchange Name | NASDAQ |
| Amendment Flag | false |
