CONSOLIDATED STATEMENT OF CHANGES IN EQUITY - 3 months ended Mar. 31, 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 and operating partnership units	1,014	0	0	1,014	0	0	1,014	0
Foreign currency translation	(651)	0	0	0	0	(558)	(558)	(93)
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	4,483	0	0	0	0	0	0	4,483
Net income (loss)	10,683	0	0	0	12,840	0	12,840	(2,157)
Balance at Mar. 31, 2015	$ 566,107	$ 61	$ 648	$ 780,665	$ (288,726)	$ (3,174)	$ 489,474	$ 76,633