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Relationship with Managers - Schedule of Management Fees (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Relationships with Managers [Abstract]
Base management fees	$ 23,228	$ 21,473	$ 19,324
Incentive management fees	7,405	8,554	6,222
Management fees	$ 30,633	$ 30,027	$ 25,546

X

- Definition

Base Management Fees expense

+ References

No definition available.

+ Details

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Namespace Prefix:	drh_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Incentive management fees expense

+ References

No definition available.

+ Details

Name:	drh_IncentiveManagementFeesExpense
Namespace Prefix:	drh_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Relationships with Managers [Abstract]

+ References

No definition available.

+ Details

Name:	drh_RelationshipsWithManagersAbstract
Namespace Prefix:	drh_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The aggregate costs related to management of owned properties during the reporting period.

+ 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 210.5-03.2(d))
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration