Disposition Of Hotel Properties And Discontinued Operations (Narrative) (Details)			3 Months Ended			6 Months Ended
	Jul. 13, 2015 property	Oct. 01, 2014 property	Jun. 30, 2016 USD ($) property	Mar. 31, 2016 property	Jun. 30, 2015 USD ($) property	Jun. 30, 2016 USD ($) property	Jun. 30, 2015 USD ($) property	Dec. 31, 2015 property
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of hotels | property			31			31
Number of properties sold | property			7	7	3	11	7
Number of hotels reclassified as held for sale | property			11			12
Number of hotels reclassified as held for sale that represent a strategic shift | property		0
Number of hotels held for sale included in discontinued operations | property						1
Number of hotels included in continuing operations | property			37		46	40	46
Number of hotels included in discontinued operations | property			1		6	2	10
Gain on sale of real estate | $			$ 8,886,000		$ 727,000	$ 12,945,000	$ 1,666,000
Net gain (loss) on disposition of assets | $			8,858,000		(135,000)	12,226,000	(122,000)
Net income (loss) | $			8,165,000		(5,615,000)	15,463,000	(2,446,000)
Net earnings (loss) attributable to controlling interests | $			$ 178,000		(284,000)	567,000	(3,000)
Alexandria, Virginia [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net income (loss) | $						81,000	(1,020,000)
Impairment expense | $					447,000	4,000	1,309,000
Net earnings (loss) attributable to controlling interests | $							(117,000)
Continuing Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale of real estate | $					8,886,000		$ 0
Net gain (loss) on disposition of assets | $					$ 0	$ 12,264,000
Continuing Operations [Member] | Alexandria, Virginia [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of properties sold | property	2
Held For Sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of hotels | property			17	13		17		16