Basis of Presentation	3 Months Ended
Mar. 31, 2013
Basis of Presentation
Basis of Presentation	2. Basis of Presentation The accompanying unaudited consolidated financial statements include the accounts of all controlled subsidiaries, and all significant intercompany amounts have been eliminated. Due to the seasonal nature of certain operational activities, the results for the interim period ended March 31, 2013, are not necessarily indicative of the results to be expected for the full year. These consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q and include all of the information and disclosures required by accounting principles generally accepted in the United States (GAAP) for interim reporting. Accordingly, they do not include all of the disclosures required by GAAP for complete financial statements. In the opinion of management, all adjustments necessary for fair presentation (including normal recurring accruals) have been included. The consolidated financial statements in this Form 10-Q should be read in conjunction with the audited consolidated financial statements and related notes contained in our 2012 Annual Report on Form 10-K. As of March 31, 2013, we consolidated 220 wholly-owned properties and 18 additional properties that are less than wholly-owned, but which we control or for which we are the primary beneficiary. We account for the remaining 87 properties, or the joint venture properties, as well as our investment in Klépierre, using the equity method of accounting, as we have determined we have significant influence over their operations. We manage the day-to-day operations of 71 of the 87 joint venture properties, but have determined that our partner or partners have substantive participating rights with respect to the assets and operations of these joint venture properties. Our investments in joint ventures in Japan, South Korea, Malaysia, and Mexico comprise 12 of the remaining 16 properties. The international properties are managed locally by joint ventures in which we share oversight responsibility with our partner. We allocate our net operating results after preferred distributions based on our partners' respective weighted average ownership. Simon Property owns a majority of our units of partnership interest, or units, and certain series of our preferred units of partnership interest, or preferred units, which have terms comparable to outstanding shares of Simon Property preferred stock. Simon Property's weighted average ownership interest in us was 85.6% and 82.9% for the three months ended March 31, 2013 and 2012, respectively. As of March 31, 2013 and December 31, 2012, Simon Property's ownership interest in us was 85.6%. We adjust the noncontrolling limited partners' interests at the end of each period to reflect their respective interests in us. Preferred unit requirements in the accompanying consolidated statements of operations and comprehensive income represent distributions on outstanding preferred units of partnership interests held by limited partners and are recorded when declared. *Reclassifications* We made certain reclassifications of prior period amounts in the consolidated financial statements to conform to the 2013 presentation. These reclassifications had no impact on previously reported net income attributable to unitholders or earnings per unit.

2. Basis of Presentation

The accompanying unaudited consolidated financial statements include the accounts of all controlled subsidiaries, and all significant intercompany amounts have been eliminated. Due to the seasonal nature of certain operational activities, the results for the interim period ended March 31, 2013, are not necessarily indicative of the results to be expected for the full year.

These consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q and include all of the information and disclosures required by accounting principles generally accepted in the United States (GAAP) for interim reporting. Accordingly, they do not include all of the disclosures required by GAAP for complete financial statements. In the opinion of management, all adjustments necessary for fair presentation (including normal recurring accruals) have been included. The consolidated financial statements in this Form 10-Q should be read in conjunction with the audited consolidated financial statements and related notes contained in our 2012 Annual Report on Form 10-K.

As of March 31, 2013, we consolidated 220 wholly-owned properties and 18 additional properties that are less than wholly-owned, but which we control or for which we are the primary beneficiary. We account for the remaining 87 properties, or the joint venture properties, as well as our investment in Klépierre, using the equity method of accounting, as we have determined we have significant influence over their operations. We manage the day-to-day operations of 71 of the 87 joint venture properties, but have determined that our partner or partners have substantive participating rights with respect to the assets and operations of these joint venture properties. Our investments in joint ventures in Japan, South Korea, Malaysia, and Mexico comprise 12 of the remaining 16 properties. The international properties are managed locally by joint ventures in which we share oversight responsibility with our partner.

We allocate our net operating results after preferred distributions based on our partners' respective weighted average ownership. Simon Property owns a majority of our units of partnership interest, or units, and certain series of our preferred units of partnership interest, or preferred units, which have terms comparable to outstanding shares of Simon Property preferred stock. Simon Property's weighted average ownership interest in us was 85.6% and 82.9% for the three months ended March 31, 2013 and 2012, respectively. As of March 31, 2013 and December 31, 2012, Simon Property's ownership interest in us was 85.6%. We adjust the noncontrolling limited partners' interests at the end of each period to reflect their respective interests in us.

Preferred unit requirements in the accompanying consolidated statements of operations and comprehensive income represent distributions on outstanding preferred units of partnership interests held by limited partners and are recorded when declared.

Reclassifications

We made certain reclassifications of prior period amounts in the consolidated financial statements to conform to the 2013 presentation. These reclassifications had no impact on previously reported net income attributable to unitholders or earnings per unit.