Supplemental Information to Statements of Cash Flows (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Non Cash Investing and Financing Information [Line Items]
Interest paid, net of capitalized interest	$ 59,803	$ 66,252
Interest capitalized	675	1,247
Income taxes paid (refunded)	75	3,369
Non-Cash Investing and Financing Activities:
Convertible debt discount adjustment	113,099	0
Distributions payable on shares/units	13,802		$ 9,307
Issuance of common shares for LTIP units redemption	0	2,831
Accrued additions and improvements to hotel properties	2,292	7,842
Right of use assets obtained in exchange for lease liabilities	48,302	0
Write-off of deferred financing costs	5,043	0
Mortgage loan assumed in connection with acquisition	161,500	0
Below (above) market rate contracts assumed in connection with acquisition	3,071	0
Common shares/units
Non-Cash Investing and Financing Activities:
Distributions payable on shares/units	1,532	1,748
Preferred shares
Non-Cash Investing and Financing Activities:
Distributions payable on shares/units	12,270	7,558
Board of Trustees Compensation
Non-Cash Investing and Financing Activities:
Issuance of shares/units	516	637
Executive and Employee Bonuses
Non-Cash Investing and Financing Activities:
Issuance of shares/units	$ 1,446	$ 0