Document and Entity Information - shares	9 Months Ended
	Mar. 31, 2016	Apr. 21, 2016
Document and Entity Information
Entity Registrant Name	ROYAL GOLD INC
Entity Central Index Key	0000085535
Document Type	10-Q
Document Period End Date	Mar. 31, 2016
Amendment Flag	false
Current Fiscal Year End Date	--06-30
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Shares Outstanding		65,267,061
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q3