Commitments and Contingencies - Ground Leases Annual Rent (Details) - USD ($)	1 Months Ended	12 Months Ended
	Jan. 31, 2031	Dec. 31, 2016
Schedule of Ground Leased Assets [Line Items]
Annual increase in rent		5.50%
Courtyard Manhattan / Fifth Avenue
Schedule of Ground Leased Assets [Line Items]
Term		49 years
Ground leases renewal option (in years)		49 years
Courtyard Manhattan / Fifth Avenue \| Maximum
Schedule of Ground Leased Assets [Line Items]
Annual rent (as a percentage of gross revenue)		5.00%
Marriott Salt Lake City Downtown
Schedule of Ground Leased Assets [Line Items]
Ownership percentage of hotel land		21.00%
Annual rent reimbursed by hotel		21.00%
Boston Westin Waterfront
Schedule of Ground Leased Assets [Line Items]
Term		30 years
Boston Westin Waterfront \| Maximum
Schedule of Ground Leased Assets [Line Items]
Annual rent (as a percentage of gross revenue)		2.50%
JW Marriot Denver at Cherry Creek
Schedule of Ground Leased Assets [Line Items]
Ground leases renewal option (in years)		5 years
Renaissance Worthington
Schedule of Ground Leased Assets [Line Items]
Ground leases renewal option (in years)		15 years
Through 4/2087 \| Bethesda Marriott Suites
Schedule of Ground Leased Assets [Line Items]
Annual rent		$ 702,020
10/2007 - 9/2017 \| Courtyard Manhattan / Fifth Avenue
Schedule of Ground Leased Assets [Line Items]
Annual rent		906,000
10/2017 - 9/2027 \| Courtyard Manhattan / Fifth Avenue
Schedule of Ground Leased Assets [Line Items]
Annual rent		1,132,812
10/2027 - 9/2037 \| Courtyard Manhattan / Fifth Avenue
Schedule of Ground Leased Assets [Line Items]
Annual rent		1,416,015
10/2037 - 9/2047 \| Courtyard Manhattan / Fifth Avenue
Schedule of Ground Leased Assets [Line Items]
Annual rent		1,770,019
10/2047 - 9/2057 \| Courtyard Manhattan / Fifth Avenue
Schedule of Ground Leased Assets [Line Items]
Annual rent		2,212,524
10/2057 - 9/2067 \| Courtyard Manhattan / Fifth Avenue
Schedule of Ground Leased Assets [Line Items]
Annual rent		2,765,655
10/2067 - 9/2077 \| Courtyard Manhattan / Fifth Avenue
Schedule of Ground Leased Assets [Line Items]
Annual rent		3,457,069
10/2077 - 9/2085 \| Courtyard Manhattan / Fifth Avenue
Schedule of Ground Leased Assets [Line Items]
Annual rent		4,321,336
Through 12/2056 \| Salt Lake City Marriott Downtown
Schedule of Ground Leased Assets [Line Items]
Annual rent		$ 132,000
Annual rent expense (as a percentage of gross room sales)		2.60%
1/2013 - 12/2017 \| Salt Lake City Marriott Downtown
Schedule of Ground Leased Assets [Line Items]
Annual rent		$ 11,305
1/2013 - 12/2015 \| Boston Westin Waterfront
Schedule of Ground Leased Assets [Line Items]
Annual rent		500,000
1/2015 - 12/2020 \| Boston Westin Waterfront
Schedule of Ground Leased Assets [Line Items]
Annual rent		750,000
1/2021 - 12/2025 \| Boston Westin Waterfront
Schedule of Ground Leased Assets [Line Items]
Annual rent		1,000,000
1/2021 - 12/2025 \| JW Marriot Denver at Cherry Creek
Schedule of Ground Leased Assets [Line Items]
Annual rent		55,000
1/2025 - 12/2030 \| Boston Westin Waterfront
Schedule of Ground Leased Assets [Line Items]
Annual rent		1,500,000
1/2025 - 12/2030 \| JW Marriot Denver at Cherry Creek
Schedule of Ground Leased Assets [Line Items]
Annual rent		60,000
1/2031 - 12/2035 \| Boston Westin Waterfront
Schedule of Ground Leased Assets [Line Items]
Annual rent		1,750,000
1/2036 - 5/2099 \| Boston Westin Waterfront
Schedule of Ground Leased Assets [Line Items]
Annual rent		$ 0
Through 12/2015 \| Boston Westin Waterfront
Schedule of Ground Leased Assets [Line Items]
Annual rent (as a percentage of gross revenue)		0.00%
1/2016 - 12/2025 \| Boston Westin Waterfront
Schedule of Ground Leased Assets [Line Items]
Annual rent (as a percentage of gross revenue)		1.00%
1/2026 - 12/2035 \| Boston Westin Waterfront
Schedule of Ground Leased Assets [Line Items]
Annual rent (as a percentage of gross revenue)		1.50%
1/2036 - 12/2045 \| Boston Westin Waterfront
Schedule of Ground Leased Assets [Line Items]
Annual rent (as a percentage of gross revenue)		2.75%
1/2046 - 12/2055 \| Boston Westin Waterfront
Schedule of Ground Leased Assets [Line Items]
Annual rent (as a percentage of gross revenue)		3.00%
1/2056 - 12/2065 \| Boston Westin Waterfront
Schedule of Ground Leased Assets [Line Items]
Annual rent (as a percentage of gross revenue)		3.25%
1/2066 - 5/2099 \| Boston Westin Waterfront
Schedule of Ground Leased Assets [Line Items]
Annual rent (as a percentage of gross revenue)		3.50%
1/2015 - 12/2020 \| JW Marriot Denver at Cherry Creek
Schedule of Ground Leased Assets [Line Items]
Annual rent		$ 50,000
Through 4/2016 \| Shorebreak Hotel
Schedule of Ground Leased Assets [Line Items]
Annual rent		115,542
5/2016 - 4/2021 \| Shorebreak Hotel
Schedule of Ground Leased Assets [Line Items]
Annual rent		$ 126,649
Rent increase (in years)		5 years
8/2013 - 7/2022 \| Renaissance Worthington
Schedule of Ground Leased Assets [Line Items]
Annual rent		$ 40,400
8/2022 - 7/2037 \| Renaissance Worthington
Schedule of Ground Leased Assets [Line Items]
Annual rent		46,081
8/2037 - 7/2052 \| Renaissance Worthington
Schedule of Ground Leased Assets [Line Items]
Annual rent		51,763
8/2052 - 7/2067 \| Renaissance Worthington
Schedule of Ground Leased Assets [Line Items]
Annual rent		$ 57,444
Scenario, Forecast \| JW Marriot Denver at Cherry Creek
Schedule of Ground Leased Assets [Line Items]
Annual increase in rent	3.00%
Rent increase (in years)	1 year