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Subsequent Events (Schedule Of Restricted Units Granted) (Details) - Subsequent Event [Member] - Restricted Stock Units (RSUs) [Member]
shares in Thousands, $ in Thousands
1 Months Ended
Nov. 30, 2016
USD ($)
shares
TSR Units [Member]  
Subsequent Event [Line Items]  
Intrinsic Value | $ $ 23,482
Performance-based Award [Member]  
Subsequent Event [Line Items]  
Intrinsic Value | $ 14,991
Time-based Award [Member]  
Subsequent Event [Line Items]  
Intrinsic Value | $ $ 33,731
Maximum [Member] | TSR Units [Member]  
Subsequent Event [Line Items]  
Number Granted | shares 495
Maximum [Member] | Performance-based Award [Member]  
Subsequent Event [Line Items]  
Number Granted | shares 316
Maximum [Member] | Time-based Award [Member]  
Subsequent Event [Line Items]  
Number Granted | shares 711