Financing Arrangement	12 Months Ended
Dec. 31, 2018
Co-Venture Arrangement [Abstract]
Financing Arrangement	Financing Arrangement: On September 30, 2009, the Company formed a joint venture, whereby a third party acquired a 49.9% interest in Chandler Fashion Center, a 1,318,000 square foot regional shopping center in Chandler, Arizona, and Freehold Raceway Mall, a 1,672,000 square foot regional shopping center in Freehold, New Jersey, referred to herein as Chandler Freehold. As a result of the Company having certain rights under the agreement to repurchase the assets after the seventh year of the formation of Chandler Freehold, the transaction did not qualify for sale treatment. The Company, however, is not obligated to repurchase the assets. The transaction was initially accounted for as a co-venture arrangement, and accordingly the assets, liabilities and operations of the properties remain on the books of the Company and a co-venture obligation was established for the net cash proceeds received from the third party less costs allocated to a warrant. The co-venture obligation was increased for the allocation of income to the co-venture partner and decreased for distributions to the co-venture partner. Upon adoption of ASC 606 on January 1, 2018, the Company changed its accounting for Chandler Freehold from a co-venture arrangement to a financing arrangement. Accordingly, the Company replaced its $31,150 distributions in excess of co-venture obligation (See Note 8—Deferred Charges and Other Assets, net) with a financing arrangement liability of $393,709 on its consolidated balance sheets. This resulted in the recognition of a $424,859 increase in the Company’s accumulated deficit as a cumulative effect adjustment under the modified retrospective method of adoption. The fair value (Level 3 measurement) of the financing arrangement obligation was based upon a multiple on net operating income of 21 times, a discount rate of 5.8% and market rents per square foot of $20 to $225. The fair value of the financing arrangement obligation is sensitive to these significant unobservable inputs and a change in these inputs may result in a significantly higher or lower fair value measurement. Distributions to the partner and subsequent changes in fair value of the financing arrangement obligation are recognized as interest expense in the Company's consolidated statements of operations. During the year ended December 31, 2018, the Company incurred interest expense (income) in connection with the financing arrangement that included $9,079 from distributions of the partner's share of net income, $6,376 from the distributions in excess of the partner's share of net income and $(15,225) from the adjustment to fair value of the financing arrangement obligation.

Financing Arrangement:

On September 30, 2009, the Company formed a joint venture, whereby a third party acquired a 49.9% interest in Chandler Fashion Center, a 1,318,000 square foot regional shopping center in Chandler, Arizona, and Freehold Raceway Mall, a 1,672,000 square foot regional shopping center in Freehold, New Jersey, referred to herein as Chandler Freehold. As a result of the Company having certain rights under the agreement to repurchase the assets after the seventh year of the formation of Chandler Freehold, the transaction did not qualify for sale treatment. The Company, however, is not obligated to repurchase the assets. The transaction was initially accounted for as a co-venture arrangement, and accordingly the assets, liabilities and operations of the properties remain on the books of the Company and a co-venture obligation was established for the net cash proceeds received from the third party less costs allocated to a warrant. The co-venture obligation was increased for the allocation of income to the co-venture partner and decreased for distributions to the co-venture partner.

Upon adoption of ASC 606 on January 1, 2018, the Company changed its accounting for Chandler Freehold from a co-venture arrangement to a financing arrangement. Accordingly, the Company replaced its $31,150 distributions in excess of co-venture obligation (See Note 8—Deferred Charges and Other Assets, net) with a financing arrangement liability of $393,709 on its consolidated balance sheets. This resulted in the recognition of a $424,859 increase in the Company’s accumulated deficit as a cumulative effect adjustment under the modified retrospective method of adoption. The fair value (Level 3 measurement) of the financing arrangement obligation was based upon a multiple on net operating income of 21 times, a discount rate of 5.8% and market rents per square foot of $20 to $225. The fair value of the financing arrangement obligation is sensitive to these significant unobservable inputs and a change in these inputs may result in a significantly higher or lower fair value measurement. Distributions to the partner and subsequent changes in fair value of the financing arrangement obligation are recognized as interest expense in the Company's consolidated statements of operations.

During the year ended December 31, 2018, the Company incurred interest expense (income) in connection with the financing arrangement that included $9,079 from distributions of the partner's share of net income, $6,376 from the distributions in excess of the partner's share of net income and $(15,225) from the adjustment to fair value of the financing arrangement obligation.