v2.4.0.8
Long-Term Incentive Plan (Narrative) (Details)
12 Months Ended
Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Limited partners' capital account, units issued 9,400,000.0
Limited partner unitholders, units remaining available 1,800,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Payout Calculation Established Financial Metric 80.00%
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Payout Calculation Established Financial Metric and Personal Performance 20.00%
Performance-based awards, description of payout calculation For performance-based awards, we base the payout calculation for 80% of the award solely on the attainment of a financial metric established by the compensation committee. We account for this portion of the award grants as equity. The payout calculation for the remaining 20% of the unit awards is based on both the attainment of a financial metric and the individual employee's personal performance as determined by the compensation committee.