Commitments and Contingencies (Details)	6 Months Ended
	Jun. 30, 2016 USD ($)
Litigation Settlement, Amount	$ 1,500,000
Loss Contingency Accrual, Period Increase (Decrease)	(500,000)
Loss Contingency Accrual	$ 1,000,000
Projects in various stages of development	8
Units in various stages of development	2,850
Consolidated Project Under Development Commitment Fund	$ 491,500,000
Various stages of development with estimated completion dates ranging through December 31, 2018	Dec. 31, 2018
Partially Owned Properties – Unconsolidated
Number Of Unconsolidated Projects	2