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Other Income and Other Expense (Tables)
3 Months Ended
Mar. 31, 2018
Component of Other Income and Other Expense Nonoperating [Line Items]  
Detail of other income and other expense
The following table provides detail of Pinnacle West's Consolidated other income and other expense for the three months ended March 31, 2018 and 2017 (dollars in thousands):

 
Three Months Ended 
 March 31,
 
2018
 
2017
Other income:
 

 
 

Interest income
$
1,891

 
$
477

Debt return on Four Corners SCR deferral (Note 4)
2,092



Miscellaneous
2

 
3

Total other income
$
3,985

 
$
480

Other expense:
 

 
 

Non-operating costs
$
(1,646
)
 
$
(1,959
)
Investment losses — net
(176
)
 
(301
)
Miscellaneous
(1,407
)
 
(1,420
)
Total other expense
$
(3,229
)
 
$
(3,680
)
Arizona Public Service Company  
Component of Other Income and Other Expense Nonoperating [Line Items]  
Detail of other income and other expense
The following table provides detail of APS’s other income and other expense for the three months ended March 31, 2018 and 2017 (dollars in thousands):
 
Three Months Ended 
 March 31,
 
2018
 
2017
Other income:
 

 
 

Interest income
$
1,678

 
$
338

Debt return on Four Corners SCR deferral (Note 4)
2,092



Miscellaneous
2

 
4

Total other income
$
3,772

 
$
342

Other expense:
 

 
 

Non-operating costs
$
(1,539
)
 
$
(1,752
)
Miscellaneous
(1,406
)
 
(1,376
)
Total other expense
$
(2,945
)
 
$
(3,128
)