Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2017	Nov. 10, 2017	Mar. 31, 2017
Document and Entity Information
Entity Registrant Name	Helmerich & Payne, Inc.
Entity Central Index Key	0000046765
Document Type	10-K
Document Period End Date	Sep. 30, 2017
Amendment Flag	false
Current Fiscal Year End Date	--09-30
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$ 7,030
Entity Common Stock, Shares Outstanding		108,605,547
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	FY