Annual report pursuant to Section 13 and 15(d)

Equity-Based Compensation (Schedule Of Fair Value Assumptions) (Details)

v3.10.0.1
Equity-Based Compensation (Schedule Of Fair Value Assumptions) (Details) - Stock-Settled Stock Appreciation Rights [Member]
12 Months Ended
Dec. 31, 2016
$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Expected volatility 47.50%
Risk-free interest rate 1.10%
Expected life 3 years 8 months 12 days
Expected dividend yield 0.00%
Weighted-average exercise price $ 63.16