Basis of Presentation and Consolidation (Details) - property	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Real Estate Properties
Total number of joint venture properties	81	82
Number of joint venture properties managed by the entity	58
Number of International joint venture properties	20
Number of joint venture properties managed by others	23
Simon Property Group, Inc
Ownership interest:
Ownership interest in the Operating Partnership (as a percent)	85.70%	85.50%
Simon Property Group, Inc | Weighted average
Ownership interest:
Ownership interest in the Operating Partnership (as a percent)	85.60%	85.50%	85.60%
Wholly owned properties
Real Estate Properties
Number of properties	137
Partially owned properties
Real Estate Properties
Number of properties	13
Premium Outlets | European Joint Venture
Real Estate Properties
Number of properties in which interest is acquired	6