Business Acquisition Number of Rooms Acquired.

No definition available.

Name:	drh_BusinessAcquisitionNumberOfRoomsAcquired
Namespace Prefix:	drh_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Unfavorable Lease Liability

+ References

No definition available.

+ Details

Name:	drh_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedUnfavorableLeaseLiability
Namespace Prefix:	drh_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Leasehold Purchase Option, Current Rent, Percentage Used In Equation

+ References

No definition available.

+ Details

Name:	drh_LeaseholdPurchaseOptionCurrentRentPercentageUsedInEquation
Namespace Prefix:	drh_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Management Agreement Term

+ References

No definition available.

+ Details

Name:	drh_ManagementAgreementTerm
Namespace Prefix:	drh_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Management Fees, Base Revenue Percentage

+ References

No definition available.

+ Details

Name:	drh_ManagementFeesBaseRevenuePercentage
Namespace Prefix:	drh_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Management Fees, Incentive Revenue Percentage

+ References

No definition available.

+ Details

Name:	drh_ManagementFeesIncentiveRevenuePercentage
Namespace Prefix:	drh_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Management Fees Revenue Percentage

+ References

No definition available.

+ Details

Name:	drh_ManagementFeesRevenuePercentage
Namespace Prefix:	drh_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Ownership of Undivided Interest, Percentage

+ References

No definition available.

+ Details

Name:	drh_OwnershipofUndividedInterestPercentage
Namespace Prefix:	drh_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Details

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

- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 30

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 30

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

+ Details

Name:	us-gaap_BusinessCombinationConsiderationTransferred1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(1)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

+ Details

Name:	us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

+ Details

Name:	us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	drh_ManagerOfPropertiesAxis=drh_KimptonHotelsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=drh_LandUnderlyingtheHotelandLeaseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=drh_LongTermGroundLeaseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Acquisitions (Details) (Shorebreak Hotel [Member], USD $)	0 Months Ended	3 Months Ended
	Feb. 06, 2015	Mar. 31, 2015	Feb. 06, 2015 room
Business Acquisition [Line Items]
Number of rooms acquired	157		157
Purchase price	$ 58,500,000
Revenue related to acquisitions		2,000,000
Net income related to acquisitions (less then .1 million)		100,000
Base management fee of gross revenues	1.25%drh_ManagementFeesBaseRevenuePercentage
Gross revenues percentage	2.50%drh_ManagementFeesRevenuePercentage
Incentive management fee for gross revenues	15.00%
Percentage used to calculate leasehold purchase option	10.00%		10.00%
Unfavorable lease liability	$ 349,000		$ 349,000
Kimpton Hotels [Member]
Business Acquisition [Line Items]
Management agreement	10 years
Land Underlying the Hotel and Lease [Member]
Business Acquisition [Line Items]
Percentage of undivided interest ownership	95.50%		95.50%
Long-Term Ground Lease [Member]
Business Acquisition [Line Items]
Percentage of undivided interest ownership	4.50%		4.50%