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Equity Method Investments (Tables)
 6 Months Ended
Jun. 30, 2017
Equity Method Investments and Joint Ventures [Abstract]  
Equity Method Investments [Table Text Block]
Combined summarized financial information for our equity method investees is shown below (in thousands):

 
 
June 30, 2017
 
December 31, 2016
Current assets
 
$
9,888

 
$
7,760

Noncurrent assets
 
$
244,110

 
$
237,516

Current liabilities
 
$
2,040

 
$
4,512

 
 
 
 
 
 
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
 
2017
 
2016
 
2017
 
2016
Revenues
 
$
7,022

 
$
—

 
$
12,693

 
$
—

Gross profit
 
$
7,022

 
$
—

 
$
12,693

 
$
—

Net income (loss)
 
$
3,379

 
$
(793
)
 
$
4,392

 
$
(1,319
)