Organization and Description of Business (Details)	9 Months Ended
	Sep. 30, 2017 item
Organization and Description of Business
Number of hotels held for investment	27
Marriott
Organization and Description of Business
Number of hotels held for investment	11
Interstate Hotels & Resorts, Inc
Organization and Description of Business
Number of hotels held for investment	4
Highgate Hotels L.P. and an affiliate
Organization and Description of Business
Number of hotels held for investment	3
Crestline Hotels & Resorts
Organization and Description of Business
Number of hotels held for investment	2
Hilton Worldwide
Organization and Description of Business
Number of hotels held for investment	2
Hyatt Corporation
Organization and Description of Business
Number of hotels held for investment	2
Davidson Hotels & Resorts
Organization and Description of Business
Number of hotels held for investment	1
HEI Hotels & Resorts
Organization and Description of Business
Number of hotels held for investment	1
Singh Hospitality, LLC
Organization and Description of Business
Number of hotels held for investment	1
Sunstone Hotel Partnership, LLC
Organization and Description of Business
Controlling interest owned (as a percent)	100.00%