Units Outstanding (Tables)

9 Months Ended

Sep. 30, 2014

Units Outstanding [Abstract]

Changes in Holding Units Outstanding

Changes in Holding Units outstanding during the nine-month period ended September 30, 2014 are as follows:

Outstanding as of December 31, 2013	96,028,494
Options exercised	753,622
Units issued	566,277
Units retired	(188,215	)
Outstanding as of September 30, 2014	97,160,178