Schedule II - Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Tenant and other receivables—allowance
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	$ 18,637	$ 16,592	$ 17,618
Additions Charged Against Operations	3,726	6,106	10,630
Uncollectible Accounts Written-off/Recovery (1)	(6,661)	(4,061)	(11,656)
Balance at End of Year	15,702	18,637	16,592
Deferred rent receivable—allowance
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	17,207	25,203	21,730
Additions Charged Against Operations	491	2,321	13,620
Uncollectible Accounts Written-off/Recovery (1)	(2,241)	(10,317)	(10,147)
Balance at End of Year	$ 15,457	$ 17,207	$ 25,203