Reportable Segments Reportable Segments (Revenue Reconciliation) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Segment Reporting Information [Line Items]
Document Fiscal Year Focus	2014
Direct Costs of Leased and Rented Property or Equipment	$ (34,857)	$ (15,208)
Total consolidated revenues	81,723	38,262
Total Segment [Member]
Segment Reporting Information [Line Items]
Net operating property income, including discontinued operations	50,018	26,170
Residential Lot Sales Net of Cost of Sales Including Gain on Sale of Undepreciated Investment Properties	160	411
Fee income, Net of Reimbursed Expenses	2,339	3,654
Other Income	1,908	282
Direct Costs of Leased and Rented Property or Equipment	34,857	15,208
Plus residential lot, multi-family unit and outparcel cost of sales	0	1,145
Net operating income in joint venture	(6,499)	(6,447)
Net sales of joint ventures	0	(10)
Net operating income from discontinued operations not included in revenues	(892)	(1,806)
Fee income in discontinued operation	0	(74)
Discontinued Operations Other Income	7	26
Residential Lot Multi Family Unit Tract and Outparcel Sales Net of Cost of Sales Including Gain on Sale of Undepreciated Investment Properties	(161)	(245)
Total consolidated revenues	$ 81,723	$ 38,262