Equity Based Compensation (Notes)	3 Months Ended
Equity Based Compensation (Notes)	Mar. 31, 2015
Equity Based Compensation [Abstract]
Equity Based Compensation	Equity Based Compensation We incurred $0.1 million of unit-based compensation expense related to the Partnership during both the three months ended March 31, 2015 and 2014. These amounts are included in general and administrative expenses in the accompanying condensed consolidated statements of income. The fair value of phantom unit awards under the LTIP is determined based on the closing price of our common limited partner units on the grant date. The estimated fair value of our phantom units is amortized over the vesting period using the straight line method. All awards made through March 31, 2015 vest over a five-year service period unless such awards are amended in accordance with the LTIP. As of March 31, 2015, there was $0.8 million of total unrecognized compensation cost related to non-vested equity-based compensation arrangements, which is expected to be recognized over a weighted-average period of 2.8 years.

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

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