Equity-Based Compensation (Summary Of Purchase /Carry Interests) (Details) (Predecessor Purchase/Carry Interests [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	100.00%
Granted	0.00%
Vested	(7.50%)
Forfeited	0.00%
Nonvested percentage of interest granted, Ending balance	100.00%
Nonvested weighted average grant date fair value per 1%, Beginning balance	$ 13,278
Granted
Forfeited
Nonvested weighted average grant date fair value Per 1%, Ending balance	$ 13,278
Excluding Vested Percentage [Member]
Predecessor Compensation Plan [Line Items]
Nonvested percentage of interest granted, Ending balance	92.50%