v3.10.0.1
Document and Entity Information - shares
9 Months Ended
Sep. 30, 2018
Nov. 05, 2018
Document and Entity Information    
Entity Registrant Name ALLIANCE RESOURCE PARTNERS LP  
Entity Central Index Key 0001086600  
Document Type 10-Q  
Document Period End Date Sep. 30, 2018  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Entity Current Reporting Status Yes  
Entity Filer Category Large Accelerated Filer  
Entity Common Units Outstanding   130,179,819
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus Q3  
Entity Small Business false  
Entity Emerging Growth Company false