Supplemental Information to Statements of Cash Flows (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Non Cash Investing and Financing Information [Line Items]
Interest paid, net of capitalized interest	$ 47,741	$ 18,729
Income taxes paid	1,461	99
Non-Cash Investing and Financing Activities:
Distributions payable on shares/units	58,307		$ 43,759
Accrued additions and improvements to hotel properties	4,040	1,566
Right of use assets obtained in exchange for lease liabilities	247,139	0
Purchase of ground lease	16,444	0
Write-off of deferred financing costs	1,281	0
Common shares/units
Non-Cash Investing and Financing Activities:
Distributions payable on shares/units	50,749	27,987
Preferred shares
Non-Cash Investing and Financing Activities:
Distributions payable on shares/units	7,558	3,442
Board of Trustees compensation
Non-Cash Investing and Financing Activities:
Issuance of shares/units	$ 740	$ 662