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Cover Page
Apr. 30, 2020
Nov. 14, 2019
Cover page.    
Document Type 8-K  
Document Period End Date Apr. 30, 2020  
Entity Registrant Name HELMERICH & PAYNE, INC.  
Entity Central Index Key 0000046765  
Amendment Flag false  
Entity Incorporation, State or Country Code   DE
Entity File Number   1-4221
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  
Written Communications false  
Soliciting Material false  
Pre-commencement Tender Offer false  
Pre-commencement Issuer Tender Offer false  
Title of 12(b) Security Common Stock ($0.10 par value)  
Trading Symbol HP  
Security Exchange Name NYSE  
Entity Emerging Growth Company false