Income Taxes (Tables)

6 Months Ended

Jun. 30, 2013

Income Taxes [Abstract]

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

	For the Three Months Ended June 30,				For the Six Months Ended June 30,
	2013		2012		2013		2012
U.S. federal statutory rate	35.0	%	35.0	%	35.0	%	35.0	%
State income taxes	2.0	%	2.6	%	1.7	%	1.6	%
Changes in reserve for uncertain tax positions as a result of settlements and lapsed statutes and related interest	(0.3)	%	(0.6)	%	(0.2)	%	(0.4)	%
Other	0.2	%	(0.5)	%	0.1	%	0.2	%
Effective tax rate	36.9	%	36.5	%	36.6	%	36.4	%