Subsequent Events - Distribution to Partners (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Feb. 15, 2016
Feb. 04, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Targeted annual distribution amount Net income (loss) per common unit (basic and diluted) (in dollars per share)     $ 1.15 $ 1.15 $ 1.15
Subsequent Event          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Partners' distribution (in dollars per share)   $ 0.3      
Targeted annual distribution amount Net income (loss) per common unit (basic and diluted) (in dollars per share)   1.2      
Distribution (in dollars per share)   $ 0.0075      
Increase in distribution (in dollars per share)   2.60%      
Increase in distribution   4.30%      
General partner distribution $ 138        
Common units | Subsequent Event          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Distribution paid 3,300        
Class A units | Subsequent Event          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Distribution paid 56        
Common Units and Subordinated Units [Member] | Subsequent Event          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Distribution paid $ 3,500