v3.19.3
Cover Page - shares
 9 Months Ended
Sep. 30, 2019
Oct. 25, 2019
Cover page.    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Sep. 29, 2019  
Document Transition Report false  
Entity File Number 000-03922  
Entity Incorporation, State or Country Code IN  
Entity Tax Identification Number 35-1057796  
Entity Address, Address Line One 107 WEST 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  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Title of 12(b) Security  Common Stock, no par value  
Trading Symbol  PATK  
Security Exchange Name NASDAQ  
Entity Common Stock, Shares Outstanding (in shares)   23,764,458
Entity Registrant Name PATRICK INDUSTRIES INC  
Entity Central Index Key 0000076605  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q3  
Amendment Flag false