Investment in Unconsolidated Entities (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Expenses:
Equity in earnings of unconsolidated entities	$ 1,302		$ 86		$ 3,608		$ 283
HSRE and DCV Holdings [Member]
Revenues	6,341		4,162		15,922		13,337
Expenses:
Operating expenses	3,070		2,159		8,327		7,242
Interest expense	1,260		1,091		3,553		3,790
Depreciation and amortization	1,592		1,134		4,298		3,555
Other expenses	4,571		0		4,588		0
Total expenses	10,493		4,384		20,766		14,587
Net loss	(4,152)		(222)		(4,844)		(1,250)
Company’s share of net income (loss)	(650)	[1]	(20)	[1]	(658)	[1]	(135)	[1]
Income on preferred investments	479		106		684		418
Equity in earnings of unconsolidated entities	(171)		86		26		283
Copper Beech [Member]
Revenues	22,899				49,400
Expenses:
Operating expenses	10,023				19,841
Interest expense	6,943				15,352
Depreciation and amortization	9,304				22,363
Other expenses	818				1,848
Total expenses	27,088				59,404
Net loss	(4,189)				(10,004)
Company’s share of net income (loss)	$ 1,473	[1]			$ 3,582	[1]

[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 and elimination of management fees.