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Equity Based Compensation (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Award vesting period (years)     5 years  
Total unrecognized compensation costs $ 1.0   $ 1.0  
Weighted average period of recognition (years)     2 years 2 months  
Selling, General and Administrative Expenses [Member]        
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Unit-based compensation expense $ 0.1 $ 0.1 $ 0.3 $ 0.2