Equity-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]

A summary of our unit award activity for the nine months ended September 30, 2015, is set forth below:

	Number of Phantom Units		Weighted Average Grant Date Fair Value
Not vested at December 31, 2014	280,251		$	28.30
Awards granted	72,005		28.33
Awards vested	(60,556	)	28.95
Awards forfeited	(11,913	)	30.78
Not vested at September 30, 2015	279,787		28.06