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Organization (Details) | Jun. 15, 2012 rooms hotels | May 24, 2010 | Jul. 12, 2012 Acquisition [Member] rooms
--- | --- | --- | ---
Organization [Abstract] |  |  |
Number Of Hotel (in hotels) | 23 |  |
Number of rooms in hotels, resorts and senior loan secured facility (in rooms) | 10,406 |  |
Number of rooms in senior loan secured facility (in rooms) | 443 | 443 |
Business Acquisition [Line Items] |  |  |
Number of rooms acquired (in rooms) |  |  | 1,462

X
- Definition Business Acquisition Number of Rooms Acquired. + References No definition available. + Details
Name: | drh_BusinessAcquisitionNumberOfRoomsAcquired
Namespace Prefix: | drh_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of hotel properties + References No definition available. + Details
Name: | drh_NumberOfHotelProperties
Namespace Prefix: | drh_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of rooms in hotels and resorts owned + References No definition available. + Details
Name: | drh_NumberOfRoomsInHotelsAndResortsOwned
Namespace Prefix: | drh_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of Rooms in hotel that secures a senior loan we own. + References No definition available. + Details
Name: | drh_NumberOfRoomsInHotelThatSecuresSeniorLoanWeOwn
Namespace Prefix: | drh_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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

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- Details
Name: | us-gaap_BusinessAcquisitionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration