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Real Estate and Accumulated Depreciation (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ (1,038,149)us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
Initial Cost - Land	507,983us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
Initial Cost - Buildings and Improvements	2,296,197us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
Costs Capitalized Subsequent to Acquisition	139,926us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
Gross Amount at End of Year - Land	508,838us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
Gross Amount at End of Year - Buildings and Improvements	2,435,268us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
Gross Amount at End of Year - Total	2,944,106us-gaap_RealEstateGrossAtCarryingValue	2,724,617us-gaap_RealEstateGrossAtCarryingValue	2,770,840us-gaap_RealEstateGrossAtCarryingValue
Accumulated Depreciation	(355,462)us-gaap_RealEstateAccumulatedDepreciation	(324,913)us-gaap_RealEstateAccumulatedDepreciation	(276,832)us-gaap_RealEstateAccumulatedDepreciation
Net Book Value	2,588,644us-gaap_RealEstateInvestmentPropertyNet
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at beginning of period	2,724,617us-gaap_RealEstateGrossAtCarryingValue	2,770,840us-gaap_RealEstateGrossAtCarryingValue	2,623,341us-gaap_RealEstateGrossAtCarryingValue
Additions:
Acquisitions	332,975us-gaap_RealEstateOtherAcquisitions		495,999us-gaap_RealEstateOtherAcquisitions
Capital expenditures	26,834us-gaap_RealEstateImprovements	15,089us-gaap_RealEstateImprovements	12,756us-gaap_RealEstateImprovements
Deductions:
Dispositions and other	(140,320)drh_SECScheduleIIIRealEstateCostOfRealEstateSoldAndOtherDeductions	(61,312)drh_SECScheduleIIIRealEstateCostOfRealEstateSoldAndOtherDeductions	(333,545)drh_SECScheduleIIIRealEstateCostOfRealEstateSoldAndOtherDeductions
Impairment			(27,711)us-gaap_SECScheduleIIIRealEstateWritedownOrReserveAmount
Balance at end of period	2,944,106us-gaap_RealEstateGrossAtCarryingValue	2,724,617us-gaap_RealEstateGrossAtCarryingValue	2,770,840us-gaap_RealEstateGrossAtCarryingValue
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at beginning of period	324,913us-gaap_RealEstateAccumulatedDepreciation	276,832us-gaap_RealEstateAccumulatedDepreciation	262,259us-gaap_RealEstateAccumulatedDepreciation
Depreciation and amortization	59,965us-gaap_SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	59,393us-gaap_SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	90,893us-gaap_SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense
Dispositions and other	(29,416)drh_SECScheduleIIIRealEstateAccumulatedDepreciationRealEstateSoldAndOtherDeductions	(11,312)drh_SECScheduleIIIRealEstateAccumulatedDepreciationRealEstateSoldAndOtherDeductions	(76,320)drh_SECScheduleIIIRealEstateAccumulatedDepreciationRealEstateSoldAndOtherDeductions
Balance at end of period	355,462us-gaap_RealEstateAccumulatedDepreciation	324,913us-gaap_RealEstateAccumulatedDepreciation	276,832us-gaap_RealEstateAccumulatedDepreciation
Aggregate cost of properties for Federal income tax purposes	2,825,486us-gaap_RealEstateFederalIncomeTaxBasis
Atlanta Alpharetta Marriott [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_AtlantaAlpharettaMarriottMember
Initial Cost - Land	3,623us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_AtlantaAlpharettaMarriottMember
Initial Cost - Buildings and Improvements	33,503us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_AtlantaAlpharettaMarriottMember
Costs Capitalized Subsequent to Acquisition	879us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_AtlantaAlpharettaMarriottMember
Gross Amount at End of Year - Land	3,623us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_AtlantaAlpharettaMarriottMember
Gross Amount at End of Year - Buildings and Improvements	34,382us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_AtlantaAlpharettaMarriottMember
Gross Amount at End of Year - Total	38,005us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_AtlantaAlpharettaMarriottMember
Accumulated Depreciation	(8,160)us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_AtlantaAlpharettaMarriottMember
Net Book Value	29,845us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_AtlantaAlpharettaMarriottMember
Depreciation Life (in years)	40 years
Deductions:
Balance at end of period	38,005us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_AtlantaAlpharettaMarriottMember
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at end of period	8,160us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_AtlantaAlpharettaMarriottMember
Bethesda Marriott Suites [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BethesdaMarriottSuitesMember
Initial Cost - Land	0us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BethesdaMarriottSuitesMember
Initial Cost - Buildings and Improvements	45,656us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BethesdaMarriottSuitesMember
Costs Capitalized Subsequent to Acquisition	1,764us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BethesdaMarriottSuitesMember
Gross Amount at End of Year - Land	0us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BethesdaMarriottSuitesMember
Gross Amount at End of Year - Buildings and Improvements	47,420us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BethesdaMarriottSuitesMember
Gross Amount at End of Year - Total	47,420us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BethesdaMarriottSuitesMember
Accumulated Depreciation	(11,851)us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BethesdaMarriottSuitesMember
Net Book Value	35,569us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BethesdaMarriottSuitesMember
Depreciation Life (in years)	40 years
Deductions:
Balance at end of period	47,420us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BethesdaMarriottSuitesMember
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at end of period	11,851us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BethesdaMarriottSuitesMember
Boston Westin Waterfront [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BostonWestinWaterfrontMember
Initial Cost - Land	0us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BostonWestinWaterfrontMember
Initial Cost - Buildings and Improvements	273,696us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BostonWestinWaterfrontMember
Costs Capitalized Subsequent to Acquisition	22,029us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BostonWestinWaterfrontMember
Gross Amount at End of Year - Land	0us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BostonWestinWaterfrontMember
Gross Amount at End of Year - Buildings and Improvements	295,725us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BostonWestinWaterfrontMember
Gross Amount at End of Year - Total	295,725us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BostonWestinWaterfrontMember
Accumulated Depreciation	(57,698)us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BostonWestinWaterfrontMember
Net Book Value	238,027us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BostonWestinWaterfrontMember
Depreciation Life (in years)	40 years
Deductions:
Balance at end of period	295,725us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BostonWestinWaterfrontMember
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at end of period	57,698us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BostonWestinWaterfrontMember
Chicago Marriott Downtown [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	(205,166)us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_ChicagoMarriottDowntownMember
Initial Cost - Land	36,900us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_ChicagoMarriottDowntownMember
Initial Cost - Buildings and Improvements	347,921us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_ChicagoMarriottDowntownMember
Costs Capitalized Subsequent to Acquisition	19,405us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_ChicagoMarriottDowntownMember
Gross Amount at End of Year - Land	36,900us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_ChicagoMarriottDowntownMember
Gross Amount at End of Year - Buildings and Improvements	367,326us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_ChicagoMarriottDowntownMember
Gross Amount at End of Year - Total	404,226us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_ChicagoMarriottDowntownMember
Accumulated Depreciation	(79,692)us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_ChicagoMarriottDowntownMember
Net Book Value	324,534us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_ChicagoMarriottDowntownMember
Depreciation Life (in years)	40 years
Deductions:
Balance at end of period	404,226us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_ChicagoMarriottDowntownMember
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at end of period	79,692us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_ChicagoMarriottDowntownMember
Conrad Chicago [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_ConradChicagoMember
Initial Cost - Land	31,650us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_ConradChicagoMember
Initial Cost - Buildings and Improvements	76,961us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_ConradChicagoMember
Costs Capitalized Subsequent to Acquisition	3,633us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_ConradChicagoMember
Gross Amount at End of Year - Land	31,650us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_ConradChicagoMember
Gross Amount at End of Year - Buildings and Improvements	80,594us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_ConradChicagoMember
Gross Amount at End of Year - Total	112,244us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_ConradChicagoMember
Accumulated Depreciation	(16,029)us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_ConradChicagoMember
Net Book Value	96,215us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_ConradChicagoMember
Depreciation Life (in years)	40 years
Deductions:
Balance at end of period	112,244us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_ConradChicagoMember
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at end of period	16,029us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_ConradChicagoMember
Courtyard Denver [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardDenverDowntownMember
Initial Cost - Land	9,400us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardDenverDowntownMember
Initial Cost - Buildings and Improvements	36,180us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardDenverDowntownMember
Costs Capitalized Subsequent to Acquisition	1,223us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardDenverDowntownMember
Gross Amount at End of Year - Land	9,400us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardDenverDowntownMember
Gross Amount at End of Year - Buildings and Improvements	37,403us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardDenverDowntownMember
Gross Amount at End of Year - Total	46,803us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardDenverDowntownMember
Accumulated Depreciation	(3,167)us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardDenverDowntownMember
Net Book Value	43,636us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardDenverDowntownMember
Depreciation Life (in years)	40 years
Deductions:
Balance at end of period	46,803us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardDenverDowntownMember
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at end of period	3,167us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardDenverDowntownMember
Courtyard Manhattan / Fifth Avenue [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	(48,970)us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardManhattanFifthAvenueMember
Initial Cost - Land	0us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardManhattanFifthAvenueMember
Initial Cost - Buildings and Improvements	34,685us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardManhattanFifthAvenueMember
Costs Capitalized Subsequent to Acquisition	2,695us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardManhattanFifthAvenueMember
Gross Amount at End of Year - Land	0us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardManhattanFifthAvenueMember
Gross Amount at End of Year - Buildings and Improvements	37,380us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardManhattanFifthAvenueMember
Gross Amount at End of Year - Total	37,380us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardManhattanFifthAvenueMember
Accumulated Depreciation	(9,324)us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardManhattanFifthAvenueMember
Net Book Value	28,056us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardManhattanFifthAvenueMember
Depreciation Life (in years)	40 years
Deductions:
Balance at end of period	37,380us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardManhattanFifthAvenueMember
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at end of period	9,324us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardManhattanFifthAvenueMember
Courtyard Manhattan / Midtown East [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	(86,000)us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardManhattanMidtownEastMember
Initial Cost - Land	16,500us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardManhattanMidtownEastMember
Initial Cost - Buildings and Improvements	54,812us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardManhattanMidtownEastMember
Costs Capitalized Subsequent to Acquisition	2,600us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardManhattanMidtownEastMember
Gross Amount at End of Year - Land	16,500us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardManhattanMidtownEastMember
Gross Amount at End of Year - Buildings and Improvements	57,412us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardManhattanMidtownEastMember
Gross Amount at End of Year - Total	73,912us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardManhattanMidtownEastMember
Accumulated Depreciation	(14,253)us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardManhattanMidtownEastMember
Net Book Value	59,659us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardManhattanMidtownEastMember
Depreciation Life (in years)	40 years
Deductions:
Balance at end of period	73,912us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardManhattanMidtownEastMember
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at end of period	14,253us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardManhattanMidtownEastMember
Frenchman's Reef and Morning Star Marriott Beach [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	(56,595)us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_FrenchmansReefandMorningStarMarriottBeachMember
Initial Cost - Land	17,713us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_FrenchmansReefandMorningStarMarriottBeachMember
Initial Cost - Buildings and Improvements	50,697us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_FrenchmansReefandMorningStarMarriottBeachMember
Costs Capitalized Subsequent to Acquisition	46,859us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_FrenchmansReefandMorningStarMarriottBeachMember
Gross Amount at End of Year - Land	17,713us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_FrenchmansReefandMorningStarMarriottBeachMember
Gross Amount at End of Year - Buildings and Improvements	97,556us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_FrenchmansReefandMorningStarMarriottBeachMember
Gross Amount at End of Year - Total	115,269us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_FrenchmansReefandMorningStarMarriottBeachMember
Accumulated Depreciation	(15,949)us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_FrenchmansReefandMorningStarMarriottBeachMember
Net Book Value	99,320us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_FrenchmansReefandMorningStarMarriottBeachMember
Depreciation Life (in years)	40 years
Deductions:
Balance at end of period	115,269us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_FrenchmansReefandMorningStarMarriottBeachMember
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at end of period	15,949us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_FrenchmansReefandMorningStarMarriottBeachMember
Hilton Boston [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonBostonMember
Initial Cost - Land	23,262us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonBostonMember
Initial Cost - Buildings and Improvements	128,628us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonBostonMember
Costs Capitalized Subsequent to Acquisition	2,086us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonBostonMember
Gross Amount at End of Year - Land	23,262us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonBostonMember
Gross Amount at End of Year - Buildings and Improvements	130,714us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonBostonMember
Gross Amount at End of Year - Total	153,976us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonBostonMember
Accumulated Depreciation	(8,005)us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonBostonMember
Net Book Value	145,971us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonBostonMember
Depreciation Life (in years)	40 years
Deductions:
Balance at end of period	153,976us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonBostonMember
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at end of period	8,005us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonBostonMember
Hilton Burlington [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonBurlingtonMember
Initial Cost - Land	9,197us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonBurlingtonMember
Initial Cost - Buildings and Improvements	40,644us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonBurlingtonMember
Costs Capitalized Subsequent to Acquisition	1,482us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonBurlingtonMember
Gross Amount at End of Year - Land	9,197us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonBurlingtonMember
Gross Amount at End of Year - Buildings and Improvements	42,126us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonBurlingtonMember
Gross Amount at End of Year - Total	51,323us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonBurlingtonMember
Accumulated Depreciation	(2,586)us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonBurlingtonMember
Net Book Value	48,737us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonBurlingtonMember
Depreciation Life (in years)	40 years
Deductions:
Balance at end of period	51,323us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonBurlingtonMember
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at end of period	2,586us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonBurlingtonMember
Hilton Garden Inn Chelsea/ New York City [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonGardenInnChelseaMember
Initial Cost - Land	14,800us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonGardenInnChelseaMember
Initial Cost - Buildings and Improvements	51,458us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonGardenInnChelseaMember
Costs Capitalized Subsequent to Acquisition	386us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonGardenInnChelseaMember
Gross Amount at End of Year - Land	14,800us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonGardenInnChelseaMember
Gross Amount at End of Year - Buildings and Improvements	51,844us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonGardenInnChelseaMember
Gross Amount at End of Year - Total	66,644us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonGardenInnChelseaMember
Accumulated Depreciation	(5,580)us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonGardenInnChelseaMember
Net Book Value	61,064us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonGardenInnChelseaMember
Depreciation Life (in years)	40 years
Deductions:
Balance at end of period	66,644us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonGardenInnChelseaMember
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at end of period	5,580us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonGardenInnChelseaMember
Hilton Garden Inn New York City/Times Square Central [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonGardenInnNewYorkCityTimesSquareCentralMember
Initial Cost - Land	60,300us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonGardenInnNewYorkCityTimesSquareCentralMember
Initial Cost - Buildings and Improvements	88,896us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonGardenInnNewYorkCityTimesSquareCentralMember
Costs Capitalized Subsequent to Acquisition	0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonGardenInnNewYorkCityTimesSquareCentralMember
Gross Amount at End of Year - Land	60,300us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonGardenInnNewYorkCityTimesSquareCentralMember
Gross Amount at End of Year - Buildings and Improvements	88,896us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonGardenInnNewYorkCityTimesSquareCentralMember
Gross Amount at End of Year - Total	149,196us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonGardenInnNewYorkCityTimesSquareCentralMember
Accumulated Depreciation	(741)us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonGardenInnNewYorkCityTimesSquareCentralMember
Net Book Value	148,455us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonGardenInnNewYorkCityTimesSquareCentralMember
Depreciation Life (in years)	40 years
Deductions:
Balance at end of period	149,196us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonGardenInnNewYorkCityTimesSquareCentralMember
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at end of period	741us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonGardenInnNewYorkCityTimesSquareCentralMember
Hilton Minneapolis [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	(92,732)us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonMinneapolisMember
Initial Cost - Land	0us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonMinneapolisMember
Initial Cost - Buildings and Improvements	129,640us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonMinneapolisMember
Costs Capitalized Subsequent to Acquisition	646us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonMinneapolisMember
Gross Amount at End of Year - Land	0us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonMinneapolisMember
Gross Amount at End of Year - Buildings and Improvements	130,286us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonMinneapolisMember
Gross Amount at End of Year - Total	130,286us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonMinneapolisMember
Accumulated Depreciation	(14,782)us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonMinneapolisMember
Net Book Value	115,504us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonMinneapolisMember
Depreciation Life (in years)	40 years
Deductions:
Balance at end of period	130,286us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonMinneapolisMember
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at end of period	14,782us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonMinneapolisMember
Hotel Rex [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HotelRexMember
Initial Cost - Land	7,856us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HotelRexMember
Initial Cost - Buildings and Improvements	21,085us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HotelRexMember
Costs Capitalized Subsequent to Acquisition	(100)us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HotelRexMember
Gross Amount at End of Year - Land	7,856us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HotelRexMember
Gross Amount at End of Year - Buildings and Improvements	20,985us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HotelRexMember
Gross Amount at End of Year - Total	28,841us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HotelRexMember
Accumulated Depreciation	(1,120)us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HotelRexMember
Net Book Value	27,721us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HotelRexMember
Depreciation Life (in years)	40 years
Deductions:
Balance at end of period	28,841us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HotelRexMember
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at end of period	1,120us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HotelRexMember
Inn At Key West [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_InnAtKeyWestMember
Initial Cost - Land	32,888us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_InnAtKeyWestMember
Initial Cost - Buildings and Improvements	13,371us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_InnAtKeyWestMember
Costs Capitalized Subsequent to Acquisition	0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_InnAtKeyWestMember
Gross Amount at End of Year - Land	32,888us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_InnAtKeyWestMember
Gross Amount at End of Year - Buildings and Improvements	13,371us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_InnAtKeyWestMember
Gross Amount at End of Year - Total	46,259us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_InnAtKeyWestMember
Accumulated Depreciation	(163)us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_InnAtKeyWestMember
Net Book Value	46,096us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_InnAtKeyWestMember
Depreciation Life (in years)	40 years
Deductions:
Balance at end of period	46,259us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_InnAtKeyWestMember
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at end of period	163us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_InnAtKeyWestMember
JW Marriot Denver at Cherry Creek [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	(38,552)us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_JwMarriotDenverAtCherryCreekMember
Initial Cost - Land	9,200us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_JwMarriotDenverAtCherryCreekMember
Initial Cost - Buildings and Improvements	63,183us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_JwMarriotDenverAtCherryCreekMember
Costs Capitalized Subsequent to Acquisition	1,145us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_JwMarriotDenverAtCherryCreekMember
Gross Amount at End of Year - Land	9,200us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_JwMarriotDenverAtCherryCreekMember
Gross Amount at End of Year - Buildings and Improvements	64,328us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_JwMarriotDenverAtCherryCreekMember
Gross Amount at End of Year - Total	73,528us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_JwMarriotDenverAtCherryCreekMember
Accumulated Depreciation	(5,756)us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_JwMarriotDenverAtCherryCreekMember
Net Book Value	67,772us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_JwMarriotDenverAtCherryCreekMember
Depreciation Life (in years)	40 years
Deductions:
Balance at end of period	73,528us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_JwMarriotDenverAtCherryCreekMember
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at end of period	5,756us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_JwMarriotDenverAtCherryCreekMember
Lexington Hotel New York [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	(170,368)us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_LexingtonHotelNewYorkMember
Initial Cost - Land	92,000us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_LexingtonHotelNewYorkMember
Initial Cost - Buildings and Improvements	229,368us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_LexingtonHotelNewYorkMember
Costs Capitalized Subsequent to Acquisition	6,239us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_LexingtonHotelNewYorkMember
Gross Amount at End of Year - Land	92,000us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_LexingtonHotelNewYorkMember
Gross Amount at End of Year - Buildings and Improvements	235,607us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_LexingtonHotelNewYorkMember
Gross Amount at End of Year - Total	327,607us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_LexingtonHotelNewYorkMember
Accumulated Depreciation	(20,712)us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_LexingtonHotelNewYorkMember
Net Book Value	306,895us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_LexingtonHotelNewYorkMember
Depreciation Life (in years)	40 years
Deductions:
Balance at end of period	327,607us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_LexingtonHotelNewYorkMember
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at end of period	20,712us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_LexingtonHotelNewYorkMember
Orlando Airport Marriott [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	(55,925)us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_OrlandoAirportMarriottMember
Initial Cost - Land	9,769us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_OrlandoAirportMarriottMember
Initial Cost - Buildings and Improvements	57,803us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_OrlandoAirportMarriottMember
Costs Capitalized Subsequent to Acquisition	3,747us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_OrlandoAirportMarriottMember
Gross Amount at End of Year - Land	9,769us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_OrlandoAirportMarriottMember
Gross Amount at End of Year - Buildings and Improvements	61,550us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_OrlandoAirportMarriottMember
Gross Amount at End of Year - Total	71,319us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_OrlandoAirportMarriottMember
Accumulated Depreciation	(13,783)us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_OrlandoAirportMarriottMember
Net Book Value	57,536us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_OrlandoAirportMarriottMember
Depreciation Life (in years)	40 years
Deductions:
Balance at end of period	71,319us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_OrlandoAirportMarriottMember
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at end of period	13,783us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_OrlandoAirportMarriottMember
Renaissance Charleston [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_RenaissanceCharlestonHistoricDistrictHotelMember
Initial Cost - Land	5,900us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_RenaissanceCharlestonHistoricDistrictHotelMember
Initial Cost - Buildings and Improvements	32,511us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_RenaissanceCharlestonHistoricDistrictHotelMember
Costs Capitalized Subsequent to Acquisition	508us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_RenaissanceCharlestonHistoricDistrictHotelMember
Gross Amount at End of Year - Land	5,900us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_RenaissanceCharlestonHistoricDistrictHotelMember
Gross Amount at End of Year - Buildings and Improvements	33,019us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_RenaissanceCharlestonHistoricDistrictHotelMember
Gross Amount at End of Year - Total	38,919us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_RenaissanceCharlestonHistoricDistrictHotelMember
Accumulated Depreciation	(3,589)us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_RenaissanceCharlestonHistoricDistrictHotelMember
Net Book Value	35,330us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_RenaissanceCharlestonHistoricDistrictHotelMember
Depreciation Life (in years)	40 years
Deductions:
Balance at end of period	38,919us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_RenaissanceCharlestonHistoricDistrictHotelMember
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at end of period	3,589us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_RenaissanceCharlestonHistoricDistrictHotelMember
Renaissance Worthington [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	(52,859)us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_RenaissanceWorthingtonMember
Initial Cost - Land	15,500us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_RenaissanceWorthingtonMember
Initial Cost - Buildings and Improvements	63,428us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_RenaissanceWorthingtonMember
Costs Capitalized Subsequent to Acquisition	3,197us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_RenaissanceWorthingtonMember
Gross Amount at End of Year - Land	15,500us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_RenaissanceWorthingtonMember
Gross Amount at End of Year - Buildings and Improvements	66,625us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_RenaissanceWorthingtonMember
Gross Amount at End of Year - Total	82,125us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_RenaissanceWorthingtonMember
Accumulated Depreciation	(15,467)us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_RenaissanceWorthingtonMember
Net Book Value	66,658us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_RenaissanceWorthingtonMember
Depreciation Life (in years)	40 years
Deductions:
Balance at end of period	82,125us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_RenaissanceWorthingtonMember
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at end of period	15,467us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_RenaissanceWorthingtonMember
Salt Lake City Marriott Downtown [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	(61,352)us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_MarriottSaltLakeCityDowntownMember
Initial Cost - Land	0us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_MarriottSaltLakeCityDowntownMember
Initial Cost - Buildings and Improvements	45,815us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_MarriottSaltLakeCityDowntownMember
Costs Capitalized Subsequent to Acquisition	3,917us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_MarriottSaltLakeCityDowntownMember
Gross Amount at End of Year - Land	855us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_MarriottSaltLakeCityDowntownMember
Gross Amount at End of Year - Buildings and Improvements	48,877us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_MarriottSaltLakeCityDowntownMember
Gross Amount at End of Year - Total	49,732us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_MarriottSaltLakeCityDowntownMember
Accumulated Depreciation	(11,975)us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_MarriottSaltLakeCityDowntownMember
Net Book Value	37,757us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_MarriottSaltLakeCityDowntownMember
Depreciation Life (in years)	40 years
Deductions:
Balance at end of period	49,732us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_MarriottSaltLakeCityDowntownMember
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at end of period	11,975us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_MarriottSaltLakeCityDowntownMember
The Lodge at Sonoma, a Renaissance Resort and Spa [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	(30,058)us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_LodgeAtSonomaRenaissanceResortAndSpaMember
Initial Cost - Land	3,951us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_LodgeAtSonomaRenaissanceResortAndSpaMember
Initial Cost - Buildings and Improvements	22,720us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_LodgeAtSonomaRenaissanceResortAndSpaMember
Costs Capitalized Subsequent to Acquisition	853us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_LodgeAtSonomaRenaissanceResortAndSpaMember
Gross Amount at End of Year - Land	3,951us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_LodgeAtSonomaRenaissanceResortAndSpaMember
Gross Amount at End of Year - Buildings and Improvements	23,573us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_LodgeAtSonomaRenaissanceResortAndSpaMember
Gross Amount at End of Year - Total	27,524us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_LodgeAtSonomaRenaissanceResortAndSpaMember
Accumulated Depreciation	(8,299)us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_LodgeAtSonomaRenaissanceResortAndSpaMember
Net Book Value	19,225us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_LodgeAtSonomaRenaissanceResortAndSpaMember
Depreciation Life (in years)	40 years
Deductions:
Balance at end of period	27,524us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_LodgeAtSonomaRenaissanceResortAndSpaMember
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at end of period	8,299us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_LodgeAtSonomaRenaissanceResortAndSpaMember
Westin Fort Lauderdale Beach Resort [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinFortLauderdaleBeachResortMember
Initial Cost - Land	54,293us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinFortLauderdaleBeachResortMember
Initial Cost - Buildings and Improvements	83,227us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinFortLauderdaleBeachResortMember
Costs Capitalized Subsequent to Acquisition	0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinFortLauderdaleBeachResortMember
Gross Amount at End of Year - Land	54,293us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinFortLauderdaleBeachResortMember
Gross Amount at End of Year - Buildings and Improvements	83,227us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinFortLauderdaleBeachResortMember
Gross Amount at End of Year - Total	137,520us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinFortLauderdaleBeachResortMember
Accumulated Depreciation	(177)us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinFortLauderdaleBeachResortMember
Net Book Value	137,343us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinFortLauderdaleBeachResortMember
Depreciation Life (in years)	40 years
Deductions:
Balance at end of period	137,520us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinFortLauderdaleBeachResortMember
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at end of period	177us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinFortLauderdaleBeachResortMember
Westin San Diego [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	(68,937)us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinSanDiegoMember
Initial Cost - Land	22,902us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinSanDiegoMember
Initial Cost - Buildings and Improvements	95,617us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinSanDiegoMember
Costs Capitalized Subsequent to Acquisition	6,179us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinSanDiegoMember
Gross Amount at End of Year - Land	22,902us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinSanDiegoMember
Gross Amount at End of Year - Buildings and Improvements	101,796us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinSanDiegoMember
Gross Amount at End of Year - Total	124,698us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinSanDiegoMember
Accumulated Depreciation	(6,049)us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinSanDiegoMember
Net Book Value	118,649us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinSanDiegoMember
Depreciation Life (in years)	40 years
Deductions:
Balance at end of period	124,698us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinSanDiegoMember
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at end of period	6,049us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinSanDiegoMember
Westin Washington, D.C. City Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	(70,635)us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinWashingtonDCCityCenterMember
Initial Cost - Land	24,579us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinWashingtonDCCityCenterMember
Initial Cost - Buildings and Improvements	122,229us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinWashingtonDCCityCenterMember
Costs Capitalized Subsequent to Acquisition	6,254us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinWashingtonDCCityCenterMember
Gross Amount at End of Year - Land	24,579us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinWashingtonDCCityCenterMember
Gross Amount at End of Year - Buildings and Improvements	128,483us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinWashingtonDCCityCenterMember
Gross Amount at End of Year - Total	153,062us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinWashingtonDCCityCenterMember
Accumulated Depreciation	(7,678)us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinWashingtonDCCityCenterMember
Net Book Value	145,384us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinWashingtonDCCityCenterMember
Depreciation Life (in years)	40 years
Deductions:
Balance at end of period	153,062us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinWashingtonDCCityCenterMember
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at end of period	7,678us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_WestinWashingtonDCCityCenterMember
Vail Marriott Mountain Resort & Spa [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_VailMarriottMountainResortSpaMember
Initial Cost - Land	5,800us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_VailMarriottMountainResortSpaMember
Initial Cost - Buildings and Improvements	52,463us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_VailMarriottMountainResortSpaMember
Costs Capitalized Subsequent to Acquisition	2,300us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_VailMarriottMountainResortSpaMember
Gross Amount at End of Year - Land	5,800us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_VailMarriottMountainResortSpaMember
Gross Amount at End of Year - Buildings and Improvements	54,763us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_VailMarriottMountainResortSpaMember
Gross Amount at End of Year - Total	60,563us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_VailMarriottMountainResortSpaMember
Accumulated Depreciation	(12,877)us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_VailMarriottMountainResortSpaMember
Net Book Value	47,686us-gaap_RealEstateInvestmentPropertyNet / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_VailMarriottMountainResortSpaMember
Depreciation Life (in years)	40 years
Deductions:
Balance at end of period	60,563us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_VailMarriottMountainResortSpaMember
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at end of period	$ 12,877us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_VailMarriottMountainResortSpaMember

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Amount of decrease to accumulated depreciation for real estate investments sold and other deductions for entities with a substantial portion of business acquiring and holding investment real estate.

+ References

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Amount of real estate investments sold and other deductions for entities with a substantial portion of business acquiring and holding investment real estate. Also includes amount of other deductions to real estate investments.

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Amount of accumulated depreciation pertaining to real estate investments for entities with a substantial portion of business acquiring and holding investment real estate.

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Amount of lien or mortgage outstanding on real estate investment properties for entities with a substantial portion of business acquiring and holding investment real estate.

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Amount before accumulated depreciation of buildings and improvements for entities with a substantial portion of business acquiring and holding investment real estate. Excludes real estate not held as an investment or interest.

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Amount of land for entities with a substantial portion of business acquiring and holding investment real estate. Excludes real estate not held as an investment or interest.

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