Significant Accounting Policies (Details 6) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Significant Accounting Policies
Interest expense	$ (284,491)	$ (288,896)	$ (849,482)	$ (835,532)
NET INCOME ATTRIBUTABLE TO UNITHOLDERS	364,022	302,595	1,091,831	1,338,770
Amount reclassified from accumulated other comprehensive income (loss)
Significant Accounting Policies
NET INCOME ATTRIBUTABLE TO UNITHOLDERS			(6,642)
Accumulated derivative losses, net | Amount reclassified from accumulated other comprehensive income (loss)
Significant Accounting Policies
Interest expense			$ (6,642)