XML 61 R1.htm IDEA: XBRL DOCUMENT v3.19.3
Document and Entity Information - USD ($)
$ in Millions
 12 Months Ended
Sep. 30, 2019
Nov. 06, 2019
Mar. 29, 2019
Cover page.      
Document Type 10-K    
Document Fiscal Period Focus FY    
Document Annual Report true    
Document Period End Date Sep. 30, 2019    
Document Transition Report false    
Amendment Flag false    
Document Fiscal Year Focus 2019    
Current Fiscal Year End Date --09-30    
Entity File Number 1-4221    
Entity Registrant Name HELMERICH & PAYNE, INC.    
Entity Central Index Key 0000046765    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 73-0679879    
Entity Address, Address Line One 1437 South Boulder Avenue, Suite 1400    
Entity Address, City or Town Tulsa    
Entity Address, State or Province OK    
Entity Address, Postal Zip Code 74119    
City Area Code 918    
Local Phone Number 742-5531    
Title of 12(b) Security Common Stock ($0.10 par value)    
Trading Symbol HP    
Security Exchange Name NYSE    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Public Float     $ 6,080
Entity Common Stock, Shares Outstanding   108,446,592