Employee Benefit Plans (Schedule Of Weighted Average Assumptions) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Employee Benefit Plans [Abstract]
Expected volatility	47.00%	51.51%	47.08%	51.60%
Risk-free interest rate	1.86%	0.80%	1.87%	1.04%
Expected term (in years)	6 years 29 days	5 years 4 months 2 days	6 years 26 days	5 years 11 months 12 days