This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Related Party Transactions and Arrangements - Investment in the Cole REITs Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Related Party Transaction [Line Items]
Aggregate equity investments	$ 44,931		$ 44,931		$ 46,077
Net loss			(431)	$ (276)
Cole REITs [Member]
Related Party Transaction [Line Items]
Aggregate equity investments	3,979		3,979
Net loss	64	$ 4	500	$ 100
Cole REITs [Member]
Related Party Transaction [Line Items]
Aggregate equity investments	$ 4,000		$ 4,000		$ 4,700