Equity-Based Compensation (Summary Of General Partner Promote Interests) (Details) (Predecessor General Partner Promote Interest [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 21, 2010
Predecessor Compensation Plan [Line Items]
Nonvested percentage of interest granted, beginning balance	78.83%
Granted	17.45%
Vested	(10.92%)
Forfeited	0.00%
Nonvested percentage of interest granted, Ending balance	96.28%
Nonvested weighted average grant date fair value per 1%, Beginning balance	$ 71,534
Granted	97,544
Nonvested weighted average grant date fair value Per 1%, Ending balance	$ 169,078
Excluding Vested Percentage [Member]
Predecessor Compensation Plan [Line Items]
Nonvested percentage of interest granted, Ending balance	85.36%