v3.3.0.814
Equity-Based Compensation Plan Equity-Based Compensation Plan - Summary of Phantom Unit Award Activity (Details) - Phantom Units [Member]
9 Months Ended
Sep. 30, 2015
$ / shares
shares
Number of Units  
Outstanding at December 31, 2014 | shares 100,769
Granted | shares 35,630
Settled | shares 32,313
Outstanding at September 30, 2015 | shares 104,086
Weighted Average Fair Value  
Outstanding at December 31, 2014 $ 41.66
Granted (in USD per unit) 80.16
Settled (in USD per unit) 40.18
Outstanding at September 30, 2015 $ 55.30