Subsequent Events (Schedule Of Leverage Ratios And Applicable Margins) (Details) - Subsequent Event [Member] - SVB 2016 Modification Agreement [Member]	Nov. 01, 2016
Leverage Ratio Range One [Member]
Debt Instrument [Line Items]
Applicable Margin for Prime Rate Loans	1.50%
Leverage Ratio Range Two [Member]
Debt Instrument [Line Items]
Applicable Margin for Prime Rate Loans	1.00%
Leverage Ratio Range Three [Member]
Debt Instrument [Line Items]
Applicable Margin for Prime Rate Loans	0.50%
Minimum [Member] | Leverage Ratio Range One [Member]
Debt Instrument [Line Items]
Total Leverage Ratio	2.50
Minimum [Member] | Leverage Ratio Range Two [Member]
Debt Instrument [Line Items]
Total Leverage Ratio	1.75
Maximum [Member] | Leverage Ratio Range Two [Member]
Debt Instrument [Line Items]
Total Leverage Ratio	2.50
Maximum [Member] | Leverage Ratio Range Three [Member]
Debt Instrument [Line Items]
Total Leverage Ratio	1.75