Income Taxes (Tables)

9 Months Ended

Sep. 30, 2012

Income Taxes [Abstract]

Schedule Of Reconciliation Of The U.S. Federal Statutory Rate To Effective Tax Rate

	For the Three Months Ended September 30,						For the Nine Months Ended September 30,
	2012			2011			2012			2011
U.S. federal statutory rate		35.0	%		35.0	%		35.0	%		35.0	%
State income taxes		1.7	%		1.5	%		1.6	%		1.9	%
Changes in reserve for uncertain tax positions as a result of settlements and lapsed statutes and related interest		-0.4	%		-0.2	%		-0.4	%		-0.6	%
Other		0.5	%		0.2	%		0.3	%		0.0	%
Effective tax rate		36.8	%		36.5	%		36.5	%		36.3	%