XML 11 R1.htm IDEA: XBRL DOCUMENT v3.10.0.1
Document and Entity Information - shares
9 Months Ended
Jun. 30, 2018
Jul. 31, 2018
Document and Entity Information    
Entity Registrant Name Helmerich & Payne, Inc.  
Entity Central Index Key 0000046765  
Document Type 10-Q  
Document Period End Date Jun. 30, 2018  
Amendment Flag false  
Current Fiscal Year End Date --09-30  
Entity Current Reporting Status Yes  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding   108,943,754
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus Q3