Units Outstanding (Tables)

12 Months Ended

Dec. 31, 2011

Limited Partners' Capital Account [Abstract]

Changes in Holding Units Outstanding

Changes in Holding Units outstanding for the years ended December 31, 2011 and 2010 were as follows:

	2011		2010
Outstanding as of January 1,		105,086,799		101,351,749
Options exercised		86,543		486,017
Units issued		-		3,249,861
Units forfeited		-		(828	)
Outstanding as of December 31,		105,173,342		105,086,799