Other Assets Other Assets (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Other Assets [Abstract]
Incentive to Lessee	$ 12,245	$ 12,548
Furniture, Fixture and Equipments and Leasehold Improvements	10,590	8,743
Prepaid Expense and Other Assets, Current	3,428	3,606
Predevelopment Costs and Earnest Money	1,789	821
Deferred Finance Costs, Net	6,878	4,176
Other Assets	34,930	29,894
Accumulated Amortization Incentives to Lessees	5,475	4,181
Furniture, Fixture and Equipments and Leasehold Improvements Accumulated Depreciation	19,137	17,684
Accumulated Amortization, Deferred Finance Costs	$ 2,286	$ 2,621