Business Acquisitions (Details Textual) (USD $) In Millions, unless otherwise specified	1 Months Ended		3 Months Ended
	Jan. 31, 2014	Jan. 31, 2013	Mar. 31, 2014
Payments to Acquire Businesses, Gross	$ 7.7
Goodwill, Impairment Loss		0.3
Business Acquisition, Pro Forma Revenue			0.7
Business Acquisition Of Property Earnings			0.1
CSH Montreal LP [Member]
Equity Method Investment, Ownership Percentage			35.00%	[1]
Harrison Street Real Estate [Member]
Equity Method Investment, Ownership Percentage	80.00%
Harrison Street Real Estate Campus Crest I, Llc [Member]
Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value		$ 1.9
The Grove at Denton, Texas [Member]
Equity Method Investment, Ownership Percentage	20.00%

[1] As of March 31, 2014, we had CAD 16.0 million ($14.4 million) of preferred bridge equity in CSH Montreal. See discussion above.