XML 40 R29.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Summary of Significant Accounting Policies - Narrative (Details) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2018 USD ($) Hotel | Mar. 31, 2017 USD ($) | Dec. 31, 2017 USD ($)
Property, Plant and Equipment [Line Items] |  |  |
Proceeds from Insurance Settlement | $ 40,000,000 |  |
Proceeds from Insurance Settlement, Business Interruption | 18,800,000 |  |
Accrual for tax uncertainties | 0 |  | $ 0
Proceeds from insurance | 21,219,000 | $ 0 |
Gain on Business Interruption Insurance Recovery | $ 6,027,000 | $ 0 |
Hotels acquired | Hotel | 2 |  |
Minimum | Land, Buildings and Improvements |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Useful life | 5 years |  |
Minimum | Furniture, fixtures and equipment |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Useful life | 1 year |  |
Maximum | Land, Buildings and Improvements |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Useful life | 40 years |  |
Maximum | Furniture, fixtures and equipment |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Useful life | 10 years |  |
Other Hotel Expenses |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Insurance Recoveries | $ 1,900,000 |  |

X
- Definition Number Of Properties Acquired + References No definition available. + Details
Name: | drh_NumberOfPropertiesAcquired
Namespace Prefix: | drh_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Proceeds from Insurance Settlement + References No definition available. + Details
Name: | drh_ProceedsfromInsuranceSettlement
Namespace Prefix: | drh_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Proceeds from Insurance Settlement, Business Interruption + References No definition available. + Details
Name: | drh_ProceedsfromInsuranceSettlementBusinessInterruption
Namespace Prefix: | drh_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The net amount (to the extent disclosed within this portion of the income statement) by which an insurance settlement exceeds incremental costs incurred from the event causing an interruption of business, plus the insurance award for earnings lost from the event, such as a natural catastrophe, explosion or fire. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64839914&loc=d3e16285-107787 + Details
Name: | us-gaap_GainOnBusinessInterruptionInsuranceRecovery
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount recovered from insurance. These recoveries reduce costs and losses that are reported as a separate line item under operating expenses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
Name: | us-gaap_InsuranceRecoveries
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount recognized for uncertainty in income taxes classified as noncurrent. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.24) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LiabilityForUncertainTaxPositionsNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of cash inflow for proceeds from settlement of insurance claim, classified as investing activities. Excludes insurance settlement classified as operating activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3179-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 21B -URI http://asc.fasb.org/extlink&oid=98514028&loc=SL94080549-108585 + Details
Name: | us-gaap_ProceedsFromInsuranceSettlementInvestingActivities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_LandBuildingsAndImprovementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=drh_FurnitureFixturesAndEquipmentMember
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_IncomeStatementLocationAxis=drh_OtherHotelExpensesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |