Real Estate Properties - Property Acquisition, Purchase Price Allocation (Details) - Jun. 30, 2015 - Series Of Real Estate Property Acquisitions Year2014 [Member] - USD ($) $ in Thousands	Total
Allocation of purchase prices of assets acquired and liabilities assumed
Total consideration	$ 107,750
Adjustments to preliminary allocations of purchase price of properties
Total consideration	0
Previously reported
Allocation of purchase prices of assets acquired and liabilities assumed
Total consideration	107,750
Acquisition-related intangible assets (in acquired lease intangibles, net)
Allocation of purchase prices of assets acquired and liabilities assumed
Acquisition related intangibles	710
Adjustments to preliminary allocations of purchase price of properties
Acquisition related intangibles	710
Acquisition-related intangible assets (in acquired lease intangibles, net) | Previously reported
Allocation of purchase prices of assets acquired and liabilities assumed
Acquisition related intangibles	0
Land
Allocation of purchase prices of assets acquired and liabilities assumed
Real estate property	32,347
Adjustments to preliminary allocations of purchase price of properties
Real estate property	807
Land | Previously reported
Allocation of purchase prices of assets acquired and liabilities assumed
Real estate property	31,540
Building and Improvements
Allocation of purchase prices of assets acquired and liabilities assumed
Real estate property	74,693
Adjustments to preliminary allocations of purchase price of properties
Real estate property	(1,517)
Building and Improvements | Previously reported
Allocation of purchase prices of assets acquired and liabilities assumed
Real estate property	$ 76,210