Document and Entity Information	9 Months Ended
Sep. 09, 2011	Oct. 19, 2011
Document Information [Line Items]
Entity Registrant Name	DiamondRock Hospitality Co
Entity Central Index Key	0001298946
Document Type	10-Q
Document Period End Date	Sep. 09, 2011
Amendment Flag	false
Document Fiscal Year Focus	2011
Document Fiscal Period Focus	Q3
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		167,502,359

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