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Debt - Schedule of Ratio of Net Indebtedness (Details) | 12 Months Ended
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Dec. 31, 2014
Line Of Credit Facility Leverage Range [Line Items] |
Percent Of Unused Portion Line Of Credit Facility Triggering Lower Commitment Fee Percentage | 50.00%drh_PercentOfUnusedPortionLineOfCreditFacilityTriggeringCommitmentFeePercentage
Minimum [Member] |
Line Of Credit Facility Leverage Range [Line Items] |
Commitment fee on unused percentage | 0.35%us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage / us-gaap_RangeAxis = us-gaap_MinimumMember
Maximum [Member] |
Line Of Credit Facility Leverage Range [Line Items] |
Commitment fee on unused percentage | 0.25%us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage / us-gaap_RangeAxis = us-gaap_MaximumMember
Line of Credit [Member] | Minimum [Member] | Greater than or equal to 4.00 to 1.00 but less than 5.00 to 1.00 [Member] |
Line Of Credit Facility Leverage Range [Line Items] |
Ratio of Net Indebtedness to EBITDA | 4 drh_RatioOfNetIndebtednesstoEbitda / drh_LineOfCreditFacilityLeverageRangeAxis = drh_LeverageRangeTwoMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MinimumMember
Line of Credit [Member] | Minimum [Member] | Greater than or equal to 5.00 to 1.00 but less than 5.50 to 1.00 [Member] |
Line Of Credit Facility Leverage Range [Line Items] |
Ratio of Net Indebtedness to EBITDA | 5 drh_RatioOfNetIndebtednesstoEbitda / drh_LineOfCreditFacilityLeverageRangeAxis = drh_LeverageRangeThreeMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MinimumMember
Line of Credit [Member] | Minimum [Member] | Greater than or equal to 5.50 to 1.00 but less than 6.00 to 1.00 [Member] |
Line Of Credit Facility Leverage Range [Line Items] |
Ratio of Net Indebtedness to EBITDA | 5.5 drh_RatioOfNetIndebtednesstoEbitda / drh_LineOfCreditFacilityLeverageRangeAxis = drh_LeverageRangeFourMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MinimumMember
Line of Credit [Member] | Minimum [Member] | Greater than or equal to 6.00 to 1.00 but less than 6.50 to 1.00 [Member] |
Line Of Credit Facility Leverage Range [Line Items] |
Ratio of Net Indebtedness to EBITDA | 6 drh_RatioOfNetIndebtednesstoEbitda / drh_LineOfCreditFacilityLeverageRangeAxis = drh_LeverageRangeFiveMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MinimumMember
Line of Credit [Member] | Minimum [Member] | Greater than or equal to 6.50 to 1.00 [Member] |
Line Of Credit Facility Leverage Range [Line Items] |
Ratio of Net Indebtedness to EBITDA | 6 drh_RatioOfNetIndebtednesstoEbitda / drh_LineOfCreditFacilityLeverageRangeAxis = drh_LeverageRangeSixMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MinimumMember
Line of Credit [Member] | Maximum [Member] | Less than 4.00 to 1.00 [Member] |
Line Of Credit Facility Leverage Range [Line Items] |
Ratio of Net Indebtedness to EBITDA | 4 drh_RatioOfNetIndebtednesstoEbitda / drh_LineOfCreditFacilityLeverageRangeAxis = drh_LeverageRangeOneMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MaximumMember
Line of Credit [Member] | Maximum [Member] | Greater than or equal to 4.00 to 1.00 but less than 5.00 to 1.00 [Member] |
Line Of Credit Facility Leverage Range [Line Items] |
Ratio of Net Indebtedness to EBITDA | 5 drh_RatioOfNetIndebtednesstoEbitda / drh_LineOfCreditFacilityLeverageRangeAxis = drh_LeverageRangeTwoMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MaximumMember
Line of Credit [Member] | Maximum [Member] | Greater than or equal to 5.00 to 1.00 but less than 5.50 to 1.00 [Member] |
Line Of Credit Facility Leverage Range [Line Items] |
Ratio of Net Indebtedness to EBITDA | 5.5 drh_RatioOfNetIndebtednesstoEbitda / drh_LineOfCreditFacilityLeverageRangeAxis = drh_LeverageRangeThreeMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MaximumMember
Line of Credit [Member] | Maximum [Member] | Greater than or equal to 5.50 to 1.00 but less than 6.00 to 1.00 [Member] |
Line Of Credit Facility Leverage Range [Line Items] |
Ratio of Net Indebtedness to EBITDA | 6 drh_RatioOfNetIndebtednesstoEbitda / drh_LineOfCreditFacilityLeverageRangeAxis = drh_LeverageRangeFourMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MaximumMember
Line of Credit [Member] | Maximum [Member] | Greater than or equal to 6.00 to 1.00 but less than 6.50 to 1.00 [Member] |
Line Of Credit Facility Leverage Range [Line Items] |
Ratio of Net Indebtedness to EBITDA | 6.5 drh_RatioOfNetIndebtednesstoEbitda / drh_LineOfCreditFacilityLeverageRangeAxis = drh_LeverageRangeFiveMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MaximumMember
LIBOR [Member] | Line of Credit [Member] |
Line Of Credit Facility Leverage Range [Line Items] |
Applicable Margin | 1.90%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember
LIBOR [Member] | Line of Credit [Member] | Less than 4.00 to 1.00 [Member] |
Line Of Credit Facility Leverage Range [Line Items] |
Applicable Margin | 1.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / drh_LineOfCreditFacilityLeverageRangeAxis = drh_LeverageRangeOneMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember
LIBOR [Member] | Line of Credit [Member] | Greater than or equal to 4.00 to 1.00 but less than 5.00 to 1.00 [Member] |
Line Of Credit Facility Leverage Range [Line Items] |
Applicable Margin | 1.90%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / drh_LineOfCreditFacilityLeverageRangeAxis = drh_LeverageRangeTwoMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember
LIBOR [Member] | Line of Credit [Member] | Greater than or equal to 5.00 to 1.00 but less than 5.50 to 1.00 [Member] |
Line Of Credit Facility Leverage Range [Line Items] |
Applicable Margin | 2.10%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / drh_LineOfCreditFacilityLeverageRangeAxis = drh_LeverageRangeThreeMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember
LIBOR [Member] | Line of Credit [Member] | Greater than or equal to 5.50 to 1.00 but less than 6.00 to 1.00 [Member] |
Line Of Credit Facility Leverage Range [Line Items] |
Applicable Margin | 2.20%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / drh_LineOfCreditFacilityLeverageRangeAxis = drh_LeverageRangeFourMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember
LIBOR [Member] | Line of Credit [Member] | Greater than or equal to 6.00 to 1.00 but less than 6.50 to 1.00 [Member] |
Line Of Credit Facility Leverage Range [Line Items] |
Applicable Margin | 2.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / drh_LineOfCreditFacilityLeverageRangeAxis = drh_LeverageRangeFiveMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember
LIBOR [Member] | Line of Credit [Member] | Greater than or equal to 6.50 to 1.00 [Member] |
Line Of Credit Facility Leverage Range [Line Items] |
Applicable Margin | 2.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / drh_LineOfCreditFacilityLeverageRangeAxis = drh_LeverageRangeSixMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember

X
- Details
Name: | drh_LineOfCreditFacilityLeverageRangeLineItems
Namespace Prefix: | drh_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percent Of Unused Portion Line Of Credit Facility Triggering Commitment Fee Percentage + References No definition available. + Details
Name: | drh_PercentOfUnusedPortionLineOfCreditFacilityTriggeringCommitmentFeePercentage
Namespace Prefix: | drh_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Ratio Of Net Indebtedness to Ebitda + References No definition available. + Details
Name: | drh_RatioOfNetIndebtednesstoEbitda
Namespace Prefix: | drh_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. + References No definition available. + Details
Name: | us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |