v3.19.3
Document And Entity Information - shares
3 Months Ended
Oct. 31, 2019
Nov. 30, 2019
Document Type 10-Q  
Document Period End Date Oct. 31, 2019  
Entity Registrant Name Ferrellgas Partners L P  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   97,152,665
Current Fiscal Year End Date --07-31  
Document Fiscal Year Focus 2020  
Document Fiscal Period Focus Q1  
Entity Central Index Key 0000922358  
Amendment Flag false  
Ferrellgas Partners Finance Corp. [Member]    
Document Type 10-Q  
Document Period End Date Oct. 31, 2019  
Entity Registrant Name Ferrellgas Partners Finance Corp  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company true  
Current Fiscal Year End Date --07-31  
Document Fiscal Year Focus 2020  
Document Fiscal Period Focus Q1  
Entity Central Index Key 0001012493  
Amendment Flag false  
Ferrellgas, L.P. [Member]    
Document Type 10-Q  
Document Period End Date Oct. 31, 2019  
Entity Registrant Name Ferrellgas L P  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Current Fiscal Year End Date --07-31  
Document Fiscal Year Focus 2020  
Document Fiscal Period Focus Q1  
Entity Central Index Key 0000922359  
Amendment Flag false  
Ferrellgas Finance Corp. [Member]    
Document Type 10-Q  
Document Period End Date Oct. 31, 2019  
Entity Registrant Name Ferrellgas Finance Corp  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company true  
Current Fiscal Year End Date --07-31  
Document Fiscal Year Focus 2020  
Document Fiscal Period Focus Q1  
Entity Central Index Key 0000922360  
Amendment Flag false