Document and Entity Information	6 Months Ended
	Dec. 31, 2012	Jan. 23, 2013
Document and Entity Information
Entity Registrant Name	ROYAL GOLD INC
Entity Central Index Key	0000085535
Document Type	10-Q
Document Period End Date	Dec. 31, 2012
Amendment Flag	false
Current Fiscal Year End Date	--06-30
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		64,366,725
Entity Exchangeable, Shares Outstanding		675,346
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q2