Equity-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2013

Equity-Based Compensation [Abstract]

Summary Of Unit-Based Awards

	Number of			Number of
	Unvested	Weighted		Unvested	Weighted
	Service	Average		Performance	Average
	Restricted	Grant-Date		Restricted	Grant-Date
	Units	Fair Value		Units	Fair Value
Unvested units, December 31, 2010	148,160	$	20.03	-	$	-
Granted	214,588		20.51	-		-
Forfeited	(38,586)		20.75	-		-
Vested	(52,798)		20.31	-		-
Unvested units, December 31, 2011	271,364	$	20.26	-	$	-
Granted	437,211		18.22	121,137		10.35
Forfeited	(61,444)		19.47	(3,055)		10.45
Vested	(96,890)		20.05	-		-
Unvested units, December 31, 2012	550,241	$	18.80	118,082	$	10.34
Granted	491,847		17.97	149,407		10.03
Forfeited	(68,806)		18.41	-		-
Vested	(218,460)		19.01	-		-
Unvested units, December 31, 2013	754,822	$	18.22	267,489	$	10.17