Management Agreements and Leases - Guarantees and Security Deposits Generally (Details) - Hotel - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Management Agreements and Leases [Line Items]
Amount by which the cash flow available to pay the entity's minimum rent or return was less than the minimum amount	$ 42,839	$ 27,586
Reduction of hotel operating expenses	22,465	10,851
Shortfalls due to unguaranteed portions of minimum returns	20,676	17,769
Amount by which the cash flow available to pay the entity's minimum rent or return was more than the minimum amount	0	1,275
Increase in guarantee provided and security deposit to the entity	$ 0	$ 1,275