Income Taxes (Reconciliation Between The Effective Income Tax Rate And The Federal Statutory Rate) (Details)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Income Taxes [Abstract]
Federal statutory rate	35.00%	35.00%	35.00%
State taxes, net of federal benefit	2.00%	2.00%	1.00%
Operations taxed at less than U.S. rate	(2.00%)	(9.00%)	(5.00%)
Legal settlement, non-deductible portion	2.00%
Other, net	(1.00%)	1.00%
Total	36.00%	29.00%	31.00%