Document and Entity Information - shares
6 Months Ended
Jun. 30, 2019
Aug. 01, 2019
Document And Entity Information [Abstract]    
Entity Registrant Name Landmark Infrastructure Partners LP  
Entity Central Index Key 0001615346  
Document Type 10-Q  
Document Period End Date Jun. 30, 2019  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Entity Current Reporting Status Yes  
Entity Filer Category Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company true  
Entity Ex Transition Period true  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q2  
Trading Symbol LMRK  
Limited Partners Units   25,338,692
Entity Shell Company false  
Entity File Number 001-36735  
Entity Tax Identification Number 611742322  
Entity Address, Address Line One 400 Continental Blvd.  
Entity Address, Address Line Two Suite 500  
Entity Address, City or Town El Segundo  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 90245  
City Area Code 310  
Local Phone Number 598-3173