XML 86 R62.htm IDEA: XBRL DOCUMENT v3.8.0.1
Acquisitions - Unaudited Pro Forma Financial Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Wyoming Refining Company    
Business Acquisition [Line Items]    
Revenues $ 2,026,237 $ 2,369,513
Net loss $ (51,239) $ (51,582)
Earnings Per Share [Abstract]    
Basic (in dollars per share) $ (1.21) $ (1.24)
Diluted (in dollars per share) $ (1.21) $ (1.24)
Mid Pac Petroleum, LLC    
Business Acquisition [Line Items]    
Revenues   $ 2,093,587
Net loss   $ (54,941)