Income Taxes (Reconciliation Of Income Tax Rates) (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Taxes [Abstract]
Statutory rate	35.00%	35.00%	35.00%
Foreign tax rate differential	(1.70%)	(3.00%)	(2.30%)
State income tax, net of federal benefit	2.60%	4.50%	2.20%
Nondeductible expenses	0.60%	1.40%	0.70%
Tax credits	(0.80%)	(2.20%)	(2.00%)
Change in liability for unrecognized tax benefits	(1.90%)	0.90%	(0.60%)
Other	(0.20%)	1.40%	(0.50%)
Effective income tax rate, total	33.60%	38.00%	32.50%