Schedule III-Reconciliation of Carrying Amounts and Accumulated Depreciation (Details) - Hotel properties - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Reconciliation of land and buildings and improvements
Balance at the beginning of the year	$ 3,595,301	$ 3,654,623	$ 3,667,466
Acquisitions	704	15,147	166,871
Improvements	78,579	96,481	91,067
Impairment loss	(34,888)	(1,797)	(67,345)
Changes in reporting presentation	(58,799)	171,675	(53,047)
Dispositions	(29,182)	(340,828)	(150,389)
Balance at the end of the year	3,551,715	3,595,301	3,654,623
Reconciliation of accumulated depreciation
Balance at the beginning of the year	815,628	776,077	803,913
Depreciation	107,949	108,175	112,176
Changes in reporting presentation	(22,249)	56,872	(87,427)
Retirement	(12,950)	(125,496)	(52,585)
Balance at the end of the year	$ 888,378	$ 815,628	$ 776,077