Basis of Presentation and Significant Accounting Policies - Narrative (Details)	6 Months Ended
	Jun. 30, 2016 USD ($) Property segment
Significant Accounting Policies [Line Items]
Number of Parcels of Land Sold | Property	3
Gain (loss) on sale of land | $	$ 0
Number of reportable segments | segment	6
Minimum
Significant Accounting Policies [Line Items]
Percentage of sales price from construction management agreements	3.00%
Maximum
Significant Accounting Policies [Line Items]
Percentage of sales price from construction management agreements	5.00%