Income Taxes (Reconciliation Of Provision For Income Taxes) (Details)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Income Taxes [Abstract]
Consolidated tax provision at federal statutory rate (in hundredths)	35.00%	35.00%
State income tax provisions, net of federal income tax benefit (in hundredths)	0.30%	3.60%
Noncontrolling interest (in hundredths)		(0.40%)
Tax reserve adjustment (in hundredths)		0.40%
Changes in certain deferred tax balances (in hundredths)	(5.10%)
All other, net (in hundredths)	0.20%	1.00%
Effective tax rate (in hundredths)	30.40%	39.60%