XML 72 R57.htm IDEA: XBRL DOCUMENT v3.6.0.2
Acquisitions - Acquisition of CenStar Energy Corp (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
 [1]
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Business Acquisition [Line Items]        
Goodwill $ 79,147 $ 18,379 [1] $ 0 $ 0
CenStar        
Business Acquisition [Line Items]        
Cash   371    
Net working capital, net of cash acquired   8,819    
Property and equipment   52    
Goodwill   6,396    
Deferred tax liability   191    
Fair value of derivative liabilities   3,475    
Total   18,117    
Customer Relationships— Acquired | CenStar        
Business Acquisition [Line Items]        
Other assets - trademarks   5,494    
Trademarks | CenStar        
Business Acquisition [Line Items]        
Other assets - trademarks   $ 651    
[1] See Note 4 "Equity" for disclosure of our variable interest entity in Spark HoldCo, LLC.