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Debt - Mortgage Debt (Details)	Dec. 31, 2016 hotel	Jun. 30, 2016 USD ($)	May 11, 2016 USD ($)	Jan. 11, 2016 USD ($)
Debt Instrument [Line Items]
Number of hotel properties secured by mortgage debt | hotel	9
Number of hotels (in hotels) | hotel	26
Chicago Marriott Downtown Magnificent Mile | Mortgages
Debt Instrument [Line Items]
Outstanding principal balance				$ 201,700,000.0
Fixed rate percentage				5.98%
Courtyard Manhattan / Fifth Avenue | Mortgages
Debt Instrument [Line Items]
Outstanding principal balance			$ 48,100,000.0
Fixed rate percentage			6.48%
Hilton Minneapolis | Mortgages
Debt Instrument [Line Items]
Outstanding principal balance		$ 89,500,000.0
Fixed rate percentage		5.46%

X

- Definition

Number of hotel properties secured by mortgage debt.

+ References

No definition available.

+ Details

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Namespace Prefix:	drh_
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Balance Type:	na
Period Type:	instant

X

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

+ Details

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Balance Type:	credit
Period Type:	instant

X

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ 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 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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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.

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X

- Definition

The number of real estate properties owned as of the balance sheet date.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
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X

- Details

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Namespace Prefix:
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X

- Details

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- Details

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- Details

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