Supplemental Information to Statements of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018	Dec. 31, 2017
Supplemental Cash Flow Elements [Abstract]
Cash, cash equivalents, and restricted cash reserves, end of period	$ 241,481	$ 401,943
Restricted cash reserves	54,217	76,380	$ 64,695
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	295,698	478,323	$ 384,842	$ 659,076
Interest paid	15,701	32,257
Income taxes paid	43	1,623
In conjunction with the sale of hotel properties, the Company recorded the following:
Sale of hotel properties	0	119,200
Transaction costs	0	(2,587)
Operating prorations	0	(537)
Proceeds from the sale of hotel properties, net	0	116,076
Supplemental non-cash transactions
Accrued capital expenditures	6,720	$ 5,314
Operating Lease, Lease Income, Lease Payments	$ 3,589