Supplemental Information to Statements of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Non Cash Investing and Financing Information [Line Items]
Interest paid, net of capitalized interest	$ 22,589	$ 7,655
Income taxes paid	(163)	0
Non-Cash Investing and Financing Activities:
Distributions payable on shares/units	58,179		$ 43,759
Accrued additions and improvements to hotel properties	2,313	1,286
Right of use assets obtained in exchange for lease liabilities	247,162	0
Purchase of ground lease	16,444	0
Common shares/units
Non-Cash Investing and Financing Activities:
Distributions payable on shares/units	50,621	27,902
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