XML 52 R41.htm IDEA: XBRL DOCUMENT v3.7.0.1
Acquisitions - Pro Forma Financial Information (Details) - Wyoming Refining Company
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2016
USD ($)
$ / shares
Business Acquisition [Line Items]  
Revenues | $ $ 438,233
Net loss | $ $ (31,155)
Earnings (loss) per share  
Basic (in dollars per shares) | $ / shares $ (0.76)
Diluted (in dollars per shares) | $ / shares $ (0.76)