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Equity-Based Compensation Plans And Employee Benefit Plans (Assumptions Used To Determine Fair Value Of Rights) (Details)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Risk-free interest rate, Minimum 0.00% 0.00% 0.00%
Risk-free interest rate, Maximum 0.07% 0.07% 0.58%
Expected unit price volatility 39.30% 39.30% 40.60%
Expected future distribution yield 5.00% 5.00% 6.00%
Minimum [Member]
     
Expected life of rights (in years), Minimum     0 years
Maximum [Member]
     
Expected life of rights (in years), Minimum 1 year 1 year 3 years 4 months 28 days