Real Estate (Commitments) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017 USD ($)
Real Estate [Abstract]
Period for improvements to construction commitments	12 months
Total commitment	$ 110,995	[1]
Amount funded	67,951
Remaining commitment	$ 43,044

[1] Includes land, construction costs, tenant improvements and lease costs.