v3.19.1
Document and Entity Information - shares
3 Months Ended
Mar. 31, 2019
Apr. 30, 2019
Document And Company Information [Abstract]    
Document Type 10-Q  
Document Period End Date Mar. 31, 2019  
Amendment Flag false  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q1  
Trading Symbol DNR  
Current Fiscal Year End Date --12-31  
Entity Central Index Key 0000945764  
Entity Current Reporting Status Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Registrant Name Denbury Resources Inc.  
Entity Common Stock, Shares Outstanding   461,224,639