Business and Organization (Details) - USD ($) $ in Millions	12 Months Ended	119 Months Ended
	Dec. 31, 2017	Dec. 31, 2017	Dec. 31, 2016	Jan. 19, 2007
Organization
Percentage of ownership interest by BHO II, Inc	0.10%
Percentage of remaining ownership interest held by BHO Business Trust II	99.90%
Common stock, shares outstanding (in shares)	24,646,494	24,646,494	25,218,770
Common stock, shares issued (in shares)	24,646,494	24,646,494	25,218,770
Convertible stock issued (in shares)	1,000	1,000	1,000
Initial Offering
Organization
Gross offering proceeds		$ 265.3
Common stock sold (in shares)		26,700,000
Common stock, shares outstanding (in shares)	24,600,000	24,600,000
Initial Offering | LightstoneGroup [Member]
Organization
Common stock, shares issued (in shares)	1,000	1,000
Initial Capitalization | Behringer Harvard Holdings
Organization
Common stock, shares issued (in shares)				22,500
Convertible stock issued (in shares)				1,000