Cover Page - shares	6 Months Ended
	Jun. 30, 2020	Aug. 07, 2020
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2020
Document Transition Report	false
Entity File Number	001-32514
Entity Registrant Name	DIAMONDROCK HOSPITALITY CO
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	20-1180098
Entity Address, Address Line One	2 Bethesda Metro Center, Suite 1400,
Entity Address, City or Town	Bethesda,
Entity Address, State or Province	MD
Entity Address, Postal Zip Code	20814
City Area Code	240
Local Phone Number	744-1150
Title of 12(b) Security	Common stock, $0.01 par value per share
Trading Symbol	DRH
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		199,516,435
Entity Central Index Key	0001298946
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
Amendment Flag	false