Investment in Unconsolidated Entities (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Revenues	$ 8,353		$ 4,614
Expenses:
Operating expenses	3,901		2,556
Interest expense	2,381		1,337
Depreciation and amortization	3,083		1,207
Other expense	122		0
Total expenses	9,487		5,100
Net loss	(1,134)		(486)
Companys share of net income (loss)(1)	308	[1]	(60)	[1]
Income on preferred investments	102		156
Equity in earnings of unconsolidated entities	$ 410		$ 96

[1] Amount differs from net loss multiplied by our ownership percentage due to the amortization of the aggregate difference between our historical cost basis and our basis reflected at the entity level, elimination of management fees, and income on preferred investments.