Segments Additional Information (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Gross real estate investments	$ 1,490,613	$ 1,477,565
Accumulated depreciation	(586,486)	(583,307)
Total real estate investments, net	904,127	894,258
Cash and cash equivalents	18,070	26,643
Total assets	943,898	937,151
Notes payable, net of deferred financing costs	439,293	438,895
Operating Segments [Member] | Real Estate Operations [Member]
Segment Reporting Information [Line Items]
Gross real estate investments	1,473,992	1,460,967
Accumulated depreciation	(580,416)	(577,392)
Total real estate investments, net	893,576	883,575
Cash and cash equivalents	15,281	24,412
Total assets	930,014	923,747
Notes payable, net of deferred financing costs	439,293	438,895
Operating Segments [Member] | Restaurant Operations [Member]
Segment Reporting Information [Line Items]
Gross real estate investments	16,621	16,598
Accumulated depreciation	(6,070)	(5,915)
Total real estate investments, net	10,551	10,683
Cash and cash equivalents	2,789	2,231
Total assets	13,884	13,404
Notes payable, net of deferred financing costs	$ 0	$ 0