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Variable Interest Entities (Tables)
12 Months Ended
Dec. 31, 2018
Variable Interest Entities [Abstract]  
Summarized Financial Information for Noncontrolling Interest
Summarized financial information for Valencia is as follows:
Results of Operations
 
Year Ended December 31,
 
2018
 
2017
 
2016
 
(In thousands)
Operating revenues
$
21,025

 
$
20,887

 
$
20,371

Operating expenses
(5,913
)
 
(5,870
)
 
(5,852
)
Earnings attributable to non-controlling interest
$
15,112

 
$
15,017

 
$
14,519

 
Financial Position
 
December 31,
 
2018
 
2017
 
(In thousands)
Current assets
$
2,684

 
$
2,688

Net property, plant and equipment
62,066

 
64,109

Total assets
64,750

 
66,797

Current liabilities
538

 
602

Owners’ equity – non-controlling interest
$
64,212

 
$
66,195