Employee Benefit Plans (Schedule Of Weighted Average Assumptions) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Employee Benefit Plans [Abstract]
Expected volatility	43.43%	45.12%	43.49%	46.97%
Risk-free interest rate	1.55%	1.89%	1.55%	1.87%
Expected term (in years)	4 years 8 months 27 days	6 years 3 months	4 years 8 months 27 days	6 years 29 days
Dividend yield			0.00%