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Commitments and Contingencies - Ground Leases Annual Rent (Details) (USD $)	12 Months Ended
	Dec. 31, 2014
Schedule of Ground Leased Assets [Line Items]
Annual increase in rent	5.50%drh_GroundLeaseAnnualRentExpenseAnnualIncreasePercentage
Bethesda Marriott Suites [Member]
Schedule of Ground Leased Assets [Line Items]
Annual increase in rent	5.00%drh_GroundLeaseAnnualRentExpenseAnnualIncreasePercentage / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BethesdaMarriottSuitesMember
Courtyard Manhattan / Fifth Avenue [Member]
Schedule of Ground Leased Assets [Line Items]
Term	49 years
Ground leases renewal option (in years)	49 years
Courtyard Manhattan / Fifth Avenue [Member] | Maximum [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent (as a percentage of gross revenue)	5.00%drh_GroundLeaseAnnualRentExpensePercentageofGrossSales / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardManhattanFifthAvenueMember
Marriott Salt Lake City Downtown [Member]
Schedule of Ground Leased Assets [Line Items]
Ownership percentage of hotel land	21.00%drh_GroundLeasePercentageofOwnershipinHotelLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_MarriottSaltLakeCityDowntownMember
Annual rent reimbursed by hotel	21.00%drh_GroundLeaseAnnualRentReimbursedbyHotelPercentage / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_MarriottSaltLakeCityDowntownMember
Boston Westin Waterfront [Member]
Schedule of Ground Leased Assets [Line Items]
Term	30 years
Boston Westin Waterfront [Member] | Maximum [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent (as a percentage of gross revenue)	2.50%drh_GroundLeaseAnnualRentExpensePercentageofGrossSales / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BostonWestinWaterfrontMember
Renaissance Worthington [Member]
Schedule of Ground Leased Assets [Line Items]
Ground leases renewal option (in years)	15 years
Through 4/2087 [Member] | Bethesda Marriott Suites [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent	630,732drh_GroundLeaseAnnualRentExpense / drh_GroundLeaseTermPeriodAxis = drh_ThroughApril2087Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BethesdaMarriottSuitesMember
10/2007 - 9/2017 [Member] | Courtyard Manhattan / Fifth Avenue [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent	906,000drh_GroundLeaseAnnualRentExpense / drh_GroundLeaseTermPeriodAxis = drh_October2007throughSeptember2017Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardManhattanFifthAvenueMember
10/2017 - 9/2027 [Member] | Courtyard Manhattan / Fifth Avenue [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent	1,132,812drh_GroundLeaseAnnualRentExpense / drh_GroundLeaseTermPeriodAxis = drh_October2017throughSeptember2027Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardManhattanFifthAvenueMember
10/2027 - 9/2037 [Member] | Courtyard Manhattan / Fifth Avenue [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent	1,416,015drh_GroundLeaseAnnualRentExpense / drh_GroundLeaseTermPeriodAxis = drh_October2027throughSeptember2037Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardManhattanFifthAvenueMember
10/2037 - 9/2047 [Member] | Courtyard Manhattan / Fifth Avenue [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent	1,770,019drh_GroundLeaseAnnualRentExpense / drh_GroundLeaseTermPeriodAxis = drh_October2037throughSeptember2047Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardManhattanFifthAvenueMember
10/2047 - 9/2057 [Member] | Courtyard Manhattan / Fifth Avenue [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent	2,212,524drh_GroundLeaseAnnualRentExpense / drh_GroundLeaseTermPeriodAxis = drh_October2047throughSeptember2057Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardManhattanFifthAvenueMember
10/2057 - 9/2067 [Member] | Courtyard Manhattan / Fifth Avenue [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent	2,765,655drh_GroundLeaseAnnualRentExpense / drh_GroundLeaseTermPeriodAxis = drh_October2057throughSeptember2067Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardManhattanFifthAvenueMember
10/2067 - 9/2077 [Member] | Courtyard Manhattan / Fifth Avenue [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent	3,457,069drh_GroundLeaseAnnualRentExpense / drh_GroundLeaseTermPeriodAxis = drh_October2067throughSeptember2077Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardManhattanFifthAvenueMember
10/2077 - 9/2085 [Member] | Courtyard Manhattan / Fifth Avenue [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent	4,321,336drh_GroundLeaseAnnualRentExpense / drh_GroundLeaseTermPeriodAxis = drh_October2077throughSeptember2085Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_CourtyardManhattanFifthAvenueMember
Through 12/2056 [Member] | Salt Lake City Marriott Downtown [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent	132,000drh_GroundLeaseAnnualRentExpense / drh_GroundLeaseTermPeriodAxis = drh_ThroughDecember2056Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_SaltLakeCityMarriottDowntownMember
Annual Rent (as a percentage of gross room sales)	2.60%drh_GroundLeaseAnnualRentExpensePercentageofGrossRoomSales / drh_GroundLeaseTermPeriodAxis = drh_ThroughDecember2056Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_SaltLakeCityMarriottDowntownMember
1/2036 - 5/2099 [Member] | Boston Westin Waterfront [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent	0drh_GroundLeaseAnnualRentExpense / drh_GroundLeaseTermPeriodAxis = drh_January2036throughMay2099Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BostonWestinWaterfrontMember
1/2013 - 12/2017 [Member] | Salt Lake City Marriott Downtown [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent	11,305drh_GroundLeaseAnnualRentExpense / drh_GroundLeaseTermPeriodAxis = drh_January2013throughDecember2017Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_SaltLakeCityMarriottDowntownMember
1/2013 - 12/2015 [Member] | Boston Westin Waterfront [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent	500,000drh_GroundLeaseAnnualRentExpense / drh_GroundLeaseTermPeriodAxis = drh_January2013throughDecember2015Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BostonWestinWaterfrontMember
1/2015 - 12/2020 [Member] | Boston Westin Waterfront [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent	750,000drh_GroundLeaseAnnualRentExpense / drh_GroundLeaseTermPeriodAxis = drh_January2016throughDecember2020Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BostonWestinWaterfrontMember
1/2021 - 12/2025 [Member] | Boston Westin Waterfront [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent	1,000,000drh_GroundLeaseAnnualRentExpense / drh_GroundLeaseTermPeriodAxis = drh_January2021throughDecember2025Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BostonWestinWaterfrontMember
1/2025 - 12/2030 [Member] | Boston Westin Waterfront [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent	1,500,000drh_GroundLeaseAnnualRentExpense / drh_GroundLeaseTermPeriodAxis = drh_January2026throughDecember2030Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BostonWestinWaterfrontMember
1/2031 - 12/2035 [Member] | Boston Westin Waterfront [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent	1,750,000drh_GroundLeaseAnnualRentExpense / drh_GroundLeaseTermPeriodAxis = drh_January2031throughDecember2035Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BostonWestinWaterfrontMember
Through 12/2015 [Member] | Boston Westin Waterfront [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent (as a percentage of gross revenue)	0.00%drh_GroundLeaseAnnualRentExpensePercentageofGrossSales / drh_GroundLeaseTermPeriodAxis = drh_ThroughDecember2015Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BostonWestinWaterfrontMember
1/2016 - 12/2025 [Member] | Boston Westin Waterfront [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent (as a percentage of gross revenue)	1.00%drh_GroundLeaseAnnualRentExpensePercentageofGrossSales / drh_GroundLeaseTermPeriodAxis = drh_January2016throughDecember2025Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BostonWestinWaterfrontMember
1/2026 - 12/2035 [Member] | Boston Westin Waterfront [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent (as a percentage of gross revenue)	1.50%drh_GroundLeaseAnnualRentExpensePercentageofGrossSales / drh_GroundLeaseTermPeriodAxis = drh_January2026throughDecember2035Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BostonWestinWaterfrontMember
1/2036 - 12/2045 [Member] | Boston Westin Waterfront [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent (as a percentage of gross revenue)	2.75%drh_GroundLeaseAnnualRentExpensePercentageofGrossSales / drh_GroundLeaseTermPeriodAxis = drh_January2036throughDecember2045Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BostonWestinWaterfrontMember
1/2046 - 12/2055 [Member] | Boston Westin Waterfront [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent (as a percentage of gross revenue)	3.00%drh_GroundLeaseAnnualRentExpensePercentageofGrossSales / drh_GroundLeaseTermPeriodAxis = drh_January2046throughDecember2055Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BostonWestinWaterfrontMember
1/2056 - 12/2065 [Member] | Boston Westin Waterfront [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent (as a percentage of gross revenue)	3.25%drh_GroundLeaseAnnualRentExpensePercentageofGrossSales / drh_GroundLeaseTermPeriodAxis = drh_January2056throughDecember2065Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BostonWestinWaterfrontMember
1/2066 -5/2099 [Member] | Boston Westin Waterfront [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent (as a percentage of gross revenue)	3.50%drh_GroundLeaseAnnualRentExpensePercentageofGrossSales / drh_GroundLeaseTermPeriodAxis = drh_January2066throughMay2099Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_BostonWestinWaterfrontMember
1/2014 - 12/2014 [Member] | Hilton Minneapolis [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent	6,313,000drh_GroundLeaseAnnualRentExpense / drh_GroundLeaseTermPeriodAxis = drh_January2014throughDecember2014Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonMinneapolisMember
1/2015 - 12/2015 [Member] | Hilton Minneapolis [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent	6,629,000drh_GroundLeaseAnnualRentExpense / drh_GroundLeaseTermPeriodAxis = drh_January2015throughDecember2015Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonMinneapolisMember
1/2016 - 12/2016 [Member] | Hilton Minneapolis [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent	6,960,000drh_GroundLeaseAnnualRentExpense / drh_GroundLeaseTermPeriodAxis = drh_January2016throughDecember2016Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonMinneapolisMember
1/2017 - 12/2017 [Member] | Hilton Minneapolis [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent	7,308,000drh_GroundLeaseAnnualRentExpense / drh_GroundLeaseTermPeriodAxis = drh_January2017throughDecember2017Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonMinneapolisMember
1/2018 - 12/2018 [Member] | Hilton Minneapolis [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent	7,673,000drh_GroundLeaseAnnualRentExpense / drh_GroundLeaseTermPeriodAxis = drh_January2018throughDecember2018Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_HiltonMinneapolisMember
8/2013 - 7/2022 [Member] | Renaissance Worthington [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent	40,400drh_GroundLeaseAnnualRentExpense / drh_GroundLeaseTermPeriodAxis = drh_August2013throughJuly2022Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_RenaissanceWorthingtonMember
8/2022 - 7/2037 [Member] | Renaissance Worthington [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent	46,081drh_GroundLeaseAnnualRentExpense / drh_GroundLeaseTermPeriodAxis = drh_August2022throughJuly2037Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_RenaissanceWorthingtonMember
8/2037 - 7/2052 [Member] | Renaissance Worthington [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent	51,763drh_GroundLeaseAnnualRentExpense / drh_GroundLeaseTermPeriodAxis = drh_August2037throughJuly2052Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_RenaissanceWorthingtonMember
8/2052 - 7/2067 [Member] | Renaissance Worthington [Member]
Schedule of Ground Leased Assets [Line Items]
Annual Rent	57,444drh_GroundLeaseAnnualRentExpense / drh_GroundLeaseTermPeriodAxis = drh_August2052throughJuly2067Member / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = drh_RenaissanceWorthingtonMember

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