Supplemental Information to Statements of Cash Flows - Schedule of Supplemental Information to Statements of Cash Flows (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
Supplemental Cash Flows [Line Items]
Restricted cash reserves	$ 6,100		$ 4,100
Sale of hotel properties	0	$ 147,377
Transaction costs	(42)	(1,682)
Operating prorations	0	(536)
Proceeds from the sale of hotel properties, net	(42)	145,159
Rangers Sub I, LLC
Supplemental Cash Flows [Line Items]
Cash and cash equivalents	64,740	12,695	19,572
Restricted cash reserves	6,072	6,056	4,147
Cash, cash equivalents, and restricted cash reserves	70,812	18,751	$ 23,719	$ 24,562
Interest paid	20,291	20,518
Interest paid to a related party	2,472	3,105
Income taxes paid	114	0
Operating Lease, Payments	4,254	6,332
Accrued capital expenditures	$ 3,414	$ 3,662