Disposition of Hotel Properties (Narrative) (Details) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2019 property	Jun. 30, 2018 USD ($) property	Mar. 31, 2018 USD ($)	Jun. 30, 2019 USD ($) property	Jun. 30, 2018 USD ($) property	Dec. 31, 2018 property
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of hotels | property	15			15
Number of properties sold | property	0	1		1	3
Net gain on sale of properties | $				$ 62	$ 1,984
Held For Sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of hotels | property	0			0		1
Continuing Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net gain on sale of properties | $		$ 1,947
Impairment Recovery [Member] | Sold [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment recovery, Sold hotels | $			$ 93		$ 93