Other Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Acquired below-market ground leases	$ 13,028	$ 13,142
Acquired in-place leases	25,720	27,997
Deferred compensation plan	9,493	8,489
Deferred financing costs – unsecured senior line of credit	9,924	11,909
Deposits	3,387	3,713
Furniture, fixtures, and equipment, net	13,878	13,682
Interest rate hedge assets	110	596
Notes receivable	6,893	16,630
Prepaid expenses	7,360	17,651
Other assets	14,621	19,503
Total	$ 104,414	$ 133,312