Income Taxes (Schedule Of Effective Tax Rate Reconciliation) (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Taxes [Abstract]
Tax provision based on the federal statutory rate	35.00%	35.00%	35.00%
Release of valuation allowances		(12.40%)	(19.20%)
Use of non-operating losses against U.S. taxable income, taxes		(14.60%)	(24.80%)
Deemed income related to foreign operations	0.20%	0.10%	0.70%
Income not subject to tax			(2.00%)
State taxes, net of federal benefit, before valuation allowance	2.40%	2.30%	1.30%
Research credits	(0.60%)
Foreign income tax rate differential	(0.30%)	(0.70%)	(0.60%)
Domestic production deduction	(3.60%)
Return to provision adjustments, foreign current and deferred balances	(0.40%)	0.50%	(0.70%)
Other	(1.60%)	(0.20%)	1.10%
Effective tax rate	31.10%	10.00%	(9.20%)