| Cover Statement | Nov. 14, 2019 |
| Document Entity Information [Abstract] | |
| Entity Central Index Key | 0000076605 |
| Document Type | 8-K |
| Document Period End Date | Nov. 14, 2019 |
| Entity Registrant Name | PATRICK INDUSTRIES, INC. |
| Entity Incorporation, State or Country Code | IN |
| Entity File Number | 000-03922 |
| Entity Tax Identification Number | 35-1057796 |
| Entity Address, Address Line One | 107 W. Franklin Street, P.O. Box 638 |
| Entity Address, City or Town | Elkhart, |
| Entity Address, State or Province | IN |
| Entity Address, Postal Zip Code | 46515 |
| City Area Code | (574) |
| Local Phone Number | 294-7511 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, no par value |
| Trading Symbol | PATK |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
| Amendment Flag | false |
| Current Fiscal Year End Date | --12-31 |
