Document and Entity Information	6 Months Ended
	Dec. 31, 2011	Jan. 25, 2012
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, 2011
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		58,815,435
Entity Exchangeable, Shares Outstanding		814,555
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q2