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v2.3.0.11

Summary of Significant Accounting Policies (Details) | 6 Months Ended
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Jun. 17, 2011 weeks hotels
Weeks in First Three Reporting Quarters | 12
Minimum [Member] |
Weeks in Fourth Reporting Quarter | 16
Maximum [Member] |
Weeks in Fourth Reporting Quarter | 17
Land, Buildings and Improvements [Member] |
Property, Plant and Equipment, Useful Life, Minimum | 15
Property, Plant and Equipment, Useful Life, Maximum | 40
Machinery and Equipment [Member] |
Property, Plant and Equipment, Useful Life, Minimum | 1
Property, Plant and Equipment, Useful Life, Maximum | 10

X
- Definition Weeks in First Three Reporting Quarters + Details
Name: | drh_WeeksInFirstThreeReportingQuarters
Namespace Prefix: | drh
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weeks in Fourth Reporting Quarter + Details
Name: | drh_WeeksInFourthReportingQuarter
Namespace Prefix: | drh
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The maximum useful life of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. + Details
Name: | us-gaap_PropertyPlantAndEquipmentUsefulLifeMaximum
Namespace Prefix: | us-gaap
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- Definition The minimum useful life of long lived, physical assets used in the normal conduct of business and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. + Details
Name: | us-gaap_PropertyPlantAndEquipmentUsefulLifeMinimum
Namespace Prefix: | us-gaap
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration