CONSOLIDATED STATEMENT OF CHANGES IN EQUITY - 6 months ended Jun. 30, 2015 - USD ($) $ in Thousands	Total	Series A Cumulative Redeemable Preferred Stock [Member]	Common Stock [Member]	Additional Common and Preferred Paid-in Capital [Member]	Accumulated Deficit and Distributions [Member]	Accumulated Other Comprehensive Loss [Member]	Total Stockholder's Equity [Member]	Noncontrolling Interests [Member]
Balance at Dec. 31, 2014	$ 479,234	$ 61	$ 648	$ 773,998	$ (301,566)	$ (2,616)	$ 470,525	$ 8,709
Amortization of restricted stock awards	1,629	0	0	1,629	0	0	1,629	0
Foreign currency translation	(553)	0	0	0	0	(474)	(474)	(79)
Non-controlling interest in Copper Beech at Ames	0	0	0	5,653	0	0	5,653	(5,653)
Non-controlling interest -OP units	71,344	0	0	0	0	0	0	71,344
Non-controlling interest -CBTC 8 and 9	(29)	0	0	0	0	0	0	(29)
Non-controlling interest -CBTC 29 and IUP BUY	12,996	0	0	0	0	0	0	12,996
Net loss	(6,367)	0	0	0	(210)	0	(210)	(6,157)
Balance at Jun. 30, 2015	$ 558,254	$ 61	$ 648	$ 781,280	$ (301,776)	$ (3,090)	$ 477,123	$ 81,131