Organization (Details)	0 Months Ended																					12 Months Ended		12 Months Ended
	Dec. 13, 2013 2014 Forecasted Spinoff property	Mar. 14, 2012 Klepierre	Dec. 31, 2013 U.S. and Puerto Rico property Item	Dec. 31, 2013 U.S. and Puerto Rico Malls property	Dec. 31, 2013 U.S. and Puerto Rico Premium Outlets property	Dec. 31, 2013 U.S. and Puerto Rico Community/Lifestyle Centers property	Dec. 31, 2013 U.S. and Puerto Rico The Mills property	Dec. 31, 2013 U.S. and Puerto Rico Other shopping centers or outlet centers property	Dec. 31, 2013 Japan property	Dec. 31, 2012 Japan property	Dec. 31, 2013 Japan Premium Outlets property	Dec. 31, 2013 South Korea property	Dec. 31, 2012 South Korea property	Dec. 31, 2013 South Korea Premium Outlets property	Dec. 31, 2013 Canada Premium Outlets property	Dec. 31, 2013 Mexico property	Dec. 31, 2012 Mexico property	Dec. 31, 2013 Mexico Premium Outlets property	Dec. 31, 2013 Malaysia property	Dec. 31, 2012 Malaysia property	Dec. 31, 2013 Malaysia Premium Outlets property	Dec. 31, 2013 Europe property	Dec. 31, 2013 Europe Klepierre country	Dec. 31, 2013 Italy property	Dec. 31, 2013 Austria property	Dec. 31, 2013 Netherlands property	Dec. 31, 2013 United Kingdom property
Owned, developed and managed retail properties:
Number of income-producing properties			308	156	66	62	13	11	9	8	9	3	2	3	1	1	1	1	1	1	1
Number of U.S. states containing property locations			38
Number of properties in which interest is acquired																						5		2	1	1	1
Joint venture ownership percentage		28.70%																					28.90%
Number of countries																							13
Number of properties merged under spin off into publicly traded REIT (SpinCo)	98