Income Taxes (Reconciliation Of Provision For Income Taxes) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Income Taxes [Abstract]
Consolidated tax provision at federal statutory rate (in hundredths)	35.00%	35.00%	35.00%	35.00%
State income tax provisions, net of federal income tax benefit (in hundredths)	1.90%	9.20%	1.10%	(8.20%)
Noncontrolling interest (in hundredths)		(0.60%)
Tax reserve adjustment (in hundredths)	(3.20%)	7.70%	(1.60%)	(15.40%)
Changes in certain deferred tax balances (in hundredths)		(10.60%)	(2.50%)	22.60%
IRS audit adjustments (in hundredths)		(9.00%)		19.30%
All other, net (in hundredths)	(0.10%)	1.10%		0.80%
Effective tax rate (in hundredths)	33.60%	32.80%	32.00%	54.10%