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Palo Verde Sale Leaseback Variable Interest Entities (Tables)
12 Months Ended
Dec. 31, 2018
Variable Interest Entities [Abstract]  
Amounts relating to the VIEs included in Consolidated Balance Sheets Our Consolidated Balance Sheets at December 31, 2018 and December 31, 2017 include the following amounts relating to the VIEs (dollars in thousands):
 
 
December 31, 2018
 
December 31, 2017
Palo Verde sale leaseback property, plant and equipment, net of accumulated depreciation
$
105,775

 
$
109,645

Equity-Noncontrolling interests
125,790

 
129,040