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Equity Method Investments (Tables)
 12 Months Ended
Dec. 31, 2018
Equity Method Investments And Joint Ventures [Abstract]  
Schedule of Revenues and Operating Loss

 

 

2018

 

 

2017

 

Revenues

 

$

—

 

 

$

—

 

Operating loss

 

$

(115

)

 

$

—

 

 
Schedule of the Components of Assets and Liabilities

 

 

2018

 

 

2017

 

Assets

 

$

11,064

 

 

$

—

 

Liabilities

 

$

168

 

 

$

—