Other Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid assets	$ 64,800	$ 63,600
Straight-line rent receivables	64,600	60,400
Above-market intangible assets, net	19,100	17,300
Additional long-lived assets, net	14,500	14,800
Ground lease modification, net	10,800	11,200
Accounts receivable	8,100	8,800
Allowance for uncollectible accounts	(100)	(200)
Credit facility deferred financing costs	4,900	2,200
Goodwill	3,487	3,487
Customer relationship intangible assets, net	1,800	1,900
Other	3,700	2,900
Other Assets	$ 195,666	$ 186,416