Tenant and Other Receivables, net	12 Months Ended
Tenant and Other Receivables, net	Dec. 31, 2017
Loans and Leases Receivable Disclosure [Abstract]
Tenant and Other Receivables, net	Tenant and Other Receivables, net: Included in tenant and other receivables, net is an allowance for doubtful accounts of $2,786 and $1,991 at December 31, 2017 and 2016, respectively. Also included in tenant and other receivables, net are accrued percentage rents of $8,711 and $9,509 at December 31, 2017 and 2016, respectively, and a deferred rent receivable due to straight-line rent adjustments of $61,859 and $56,761 at December 31, 2017 and 2016, respectively. On March 17, 2014, in connection with the sale of Lake Square Mall, a 559,000 square foot regional shopping center in Leesburg, Florida, the Company issued a note receivable for $6,500 that bore interest at an effective rate of 6.5% and was to mature on March 17, 2018 ("LSM Note A") and a note receivable for $3,103 that bore interest at 5.0% and was to mature on December 31, 2014 ("LSM Note B"). LSM Note A and LSM Note B were paid off on October 20, 2017 and September 2, 2014, respectively.

The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses.