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Stockholders Equity and Stock Options (Schedule Of Weighted-Average Assumptions Used In Calculation Of Fair Value) (Details)	7 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Share-based Compensation [Abstract]
Volatility		35.08%	39.02%	40.13%
Expected life of options (in years)		2.98	2.95	2.92
Risk-free interest rate		0.81%	1.25%	1.48%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	2.00%	0.70%	0.00%	0.00%

The period of time an equity-based award is expected to be outstanding. An equity-based award's expected term is generally determined based on, among other factors, the instrument's contractual term and the effects of employees' expected exercise and post-vesting employment termination behavior.

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