Real Estate Investments (Summary of Real Estate Assets Acquired and Liabilities Assumed) (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2016 USD ($) property
Real estate investments, at cost:
Land	$ 0
Building and improvements	148,647
Total tangible assets	148,647
Acquired intangibles:
Total intangible assets, net	29,868
Total assets acquired, net	178,515
Mortgage notes payable used to acquire real estate investments	(99,000)
Premiums on mortgages assumed	0
Other assets acquired	0
Other liabilities assumed	(353)
Cash paid for acquired real estate investment	$ 79,162
Number of properties purchased | property	1
In-place leases
Acquired intangibles:
Finite-lived intangibles acquired	$ 27,433
Above-market lease assets
Acquired intangibles:
Finite-lived intangibles acquired	5,230
Other intangibles
Acquired intangibles:
Finite-lived intangibles acquired	0
Below-market lease liabilities
Acquired intangibles:
Below-market lease liabilities	(5,277)
Below-market ground lease asset
Acquired intangibles:
Finite-lived intangibles acquired	$ 2,482