Supplemental Information to Statements of Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Non Cash Investing and Financing Information [Line Items]
Interest paid, net of capitalized interest	$ 91,918	$ 48,658	$ 33,999
Interest capitalized	347	0	0
Income taxes paid	4,568	4,047	575
Non-Cash Investing and Financing Activities:
Distributions payable on shares/units	58,564	43,759
Accrued additions and improvements to hotel properties	3,192	8,620	961
Right of use assets obtained in exchange for lease liabilities	257,167	0	0
Purchase of ground lease	16,604	0	0
Write-off of fully depreciated building, furniture, fixtures and equipment	28,120	0	14,134
Write-off of deferred financing costs	3,013	0	5,956
Common shares/units
Non-Cash Investing and Financing Activities:
Distributions payable on shares/units	51,006	36,201	28,381
Preferred shares
Non-Cash Investing and Financing Activities:
Distributions payable on shares/units	7,558	7,558	3,442
Board of Trustees compensation
Non-Cash Investing and Financing Activities:
Issuance of shares/units	740	662	503
LaSalle Hotel Properties
Non-Cash Investing and Financing Activities:
Exchange of LaSalle shares as part of purchase price	0	346,544	0
Operating partnership units | LaSalle Hotel Properties
Non-Cash Investing and Financing Activities:
Issuance of shares/units	0	4,665	0
Common shares/units | LaSalle Hotel Properties
Non-Cash Investing and Financing Activities:
Issuance of shares/units	0	2,144,057	0
Preferred shares | LaSalle Hotel Properties
Non-Cash Investing and Financing Activities:
Issuance of shares/units	$ 0	$ 234,222	$ 0