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OTHER INCOME AND OTHER EXPENSE (Tables)
 9 Months Ended
Sep. 30, 2018
Other Income and Other Expense Disclosure
The following table sets forth the components of other income and other expense for the periods indicated:
 
 
Three Months Ended
 
Nine Months Ended
 
 
September 30,
 
September 30,
 
 
2018
 
2017
 
2018
 
2017
 
 
(Thousands of dollars)
Net periodic benefit cost other than service cost
 
$
(2,336
)
 
$
(4,313
)
 
$
(6,473
)
 
$
(12,939
)
Other, net
 
407

 
598

 
186

 
1,917

Total other income (expense), net
 
$
(1,929
)
 
$
(3,715
)
 
$
(6,287
)
 
$
(11,022
)