Employee Benefit Plans (Schedule Of Revenue Growth Targets) (Details) - Performance-Based Restricted Stock Units [Member]	9 Months Ended
	Sep. 30, 2015
Vesting Target One [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of RSU Vesting	150.00%
Vesting Target One [Member] | Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Achievment of Revenue Growth Objective	20.00%
Vesting Target Two [Member] | Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Achievment of Revenue Growth Objective	15.00%
Percentage of RSU Vesting	100.00%
Vesting Target Two [Member] | Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Achievment of Revenue Growth Objective	20.00%
Percentage of RSU Vesting	150.00%
Vesting Target Three [Member] | Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Achievment of Revenue Growth Objective	10.00%
Percentage of RSU Vesting	50.00%
Vesting Target Three [Member] | Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Achievment of Revenue Growth Objective	15.00%
Percentage of RSU Vesting	100.00%
Vesting Target Four [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of RSU Vesting	0.00%
Vesting Target Four [Member] | Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Achievment of Revenue Growth Objective	10.00%