Stock-Based Compensation (Summary Of Outstanding Restricted Stock Awards And Units) (Details) shares in Thousands, $ in Thousands |
9 Months Ended |
|---|---|
|
Sep. 30, 2016
USD ($)
shares
| |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Unvested awards/units | shares | 855 |
| Unrecognized compensation cost | $ | $ 9,907 |
| Period to recognize compensation cost | 1 year 10 months 13 days |
| Restricted Stock Awards [Member] | |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Unvested awards/units | shares | 359 |
| Unrecognized compensation cost | $ | $ 4,311 |
| Period to recognize compensation cost | 1 year 2 months 12 days |
| Restricted Stock Units [Member] | |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Unvested awards/units | shares | 496 |
| Unrecognized compensation cost | $ | $ 5,596 |
| Period to recognize compensation cost | 2 years 4 months 24 days |