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v2.4.1.9

Capital Stock (Details) (USD $) | 0 Months Ended | 3 Months Ended | 0 Months Ended | 1 Months Ended
--- | --- | --- | --- | ---
Mar. 31, 2015 | Jan. 12, 2015 | Dec. 31, 2014 | Mar. 31, 2015 | Mar. 31, 2014 | Apr. 10, 2015 | Nov. 30, 2014
Dividends Payable [Line Items] |  |  |  |  |  |  |
Common stock, shares authorized | 400,000,000us-gaap_CommonStockSharesAuthorized |  | 400,000,000us-gaap_CommonStockSharesAuthorized | 400,000,000us-gaap_CommonStockSharesAuthorized |  |  |
Common stock, par value (in dollars per share) | $ 0.01us-gaap_CommonStockParOrStatedValuePerShare |  | $ 0.01us-gaap_CommonStockParOrStatedValuePerShare | $ 0.01us-gaap_CommonStockParOrStatedValuePerShare |  |  |
Proceeds from sale of common stock |  |  |  | $ 7,829,000us-gaap_ProceedsFromIssuanceOfCommonStock | $ 0us-gaap_ProceedsFromIssuanceOfCommonStock |  |
Preferred stock, shares authorized | 10,000,000us-gaap_PreferredStockSharesAuthorized |  | 10,000,000us-gaap_PreferredStockSharesAuthorized | 10,000,000us-gaap_PreferredStockSharesAuthorized |  |  |
Preferred stock, par value (in dollars per share) | $ 0.01us-gaap_PreferredStockParOrStatedValuePerShare |  | $ 0.01us-gaap_PreferredStockParOrStatedValuePerShare | $ 0.01us-gaap_PreferredStockParOrStatedValuePerShare |  |  |
Preferred Stock, shares outstanding | 0us-gaap_PreferredStockSharesOutstanding |  | 0us-gaap_PreferredStockSharesOutstanding | 0us-gaap_PreferredStockSharesOutstanding |  |  |
Operating Partnership Units Option To Redeem For Common Stock Ratio |  |  |  | 1drh_OperatingPartnershipUnitsOptionToRedeemForCommonStockRatio |  |  |
Payment Date |  | Jan. 12, 2015 |  |  |  |  |
Record Date | Mar. 31, 2015 |  | Dec. 31, 2014 |  |  |  |
Dividends per Share (in dollars per share) |  | $ 0.1025us-gaap_CommonStockDividendsPerShareCashPaid |  |  |  |  |
Subsequent Event [Member] |  |  |  |  |  |  |
Dividends Payable [Line Items] |  |  |  |  |  |  |
Payment Date |  |  |  |  |  | Apr. 10, 2015 |
Dividends per Share (in dollars per share) |  |  |  |  |  | $ 0.1250us-gaap_CommonStockDividendsPerShareCashPaid / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
Unaffiliated Third Parties [Member] |  |  |  |  |  |  |
Dividends Payable [Line Items] |  |  |  |  |  |  |
Units of Partnership Interest, Amount | 0us-gaap_UnitsOfPartnershipInterestAmount / dei_LegalEntityAxis = drh_UnaffiliatedThirdPartiesMember |  | 0us-gaap_UnitsOfPartnershipInterestAmount / dei_LegalEntityAxis = drh_UnaffiliatedThirdPartiesMember | 0us-gaap_UnitsOfPartnershipInterestAmount / dei_LegalEntityAxis = drh_UnaffiliatedThirdPartiesMember |  |  |
Common Stock [Member] |  |  |  |  |  |  |
Dividends Payable [Line Items] |  |  |  |  |  |  |
Aggregate offering price |  |  |  |  |  |  | 200,000,000drh_SaleofCommonStockAggregateOfferingPrice / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
Common stock sold in offering |  |  |  | 524,606us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |
Share price of common stock sold | $ 15.18us-gaap_SharePrice / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  | $ 15.18us-gaap_SharePrice / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |
Proceeds from sale of common stock |  |  |  | $ 7,800,000us-gaap_ProceedsFromIssuanceOfCommonStock / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |

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