Supplemental Information to Statements of Cash Flows (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Non Cash Investing and Financing Information [Line Items]
Interest paid, net of capitalized interest	$ 66,252	$ 69,680
Interest capitalized	1,247	0
Income taxes paid	3,369	2,569
Non-Cash Investing and Financing Activities:
Distributions payable on shares/units	9,306		$ 58,564
Issuance of common shares for LTIP unit redemption	2,831	0
Accrued additions and improvements to hotel properties	7,842	6,754
Right of use assets obtained in exchange for lease liabilities	0	257,167
Purchase of ground lease	0	16,604
Write off of Deferred Debt Issuance Cost	0	2,697
Common shares/units
Non-Cash Investing and Financing Activities:
Distributions payable on shares/units	1,748	50,878
Preferred shares
Non-Cash Investing and Financing Activities:
Distributions payable on shares/units	7,558	7,558
Board of Trustees compensation
Non-Cash Investing and Financing Activities:
Issuance of shares/units	$ 637	$ 740