Condensed Consolidated Balance Sheets (Parenthetical) - shares	Jun. 30, 2015	Apr. 10, 2015	Dec. 31, 2014	Jun. 30, 2014	Dec. 31, 2013
Common units, issued	99,629,218	4,600,000	95,029,218
Common units, outstanding	99,629,218		95,029,218	88,691,000	88,691,000