Stock-Based Compensation (Schedule Of Stock Available For Future Grants) (Details)
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12 Months Ended | ||
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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Ltip | |||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
Available for future grants | 4,899,428 | 5,945,033 | 7,638,688 |
Shares of Common Stock issued | 2,168,641 | 2,765,986 | 2,337,179 |
TSOP | |||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
Available for future grants | 998,896 | 1,172,256 | 1,434,356 |
Shares of Common Stock issued | 252,042 | 331,282 | 153,423 |