Equity - Schedule of Dividends Payable (Details)	Jan. 13, 2020 $ / shares
Equity [Abstract]
Dividends per share (in dollars per share)	$ 0.125

Common Stock, Dividends, Per Share, Cash Paid And Distribution Per Unit Of Limited Partner Interest

No definition available.

Name:	drh_CommonStockDividendsPerShareCashPaidAndDistributionPerUnitOfLimitedPartnerInterest
Namespace Prefix:	drh_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration