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OTHER INCOME AND OTHER EXPENSE (Notes) | 6 Months Ended
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Jun. 30, 2018
Other Income and Other Expense Disclosure [Text Block] |
11. | OTHER INCOME AND OTHER EXPENSE
The following table sets forth the components of other income and other expense for the periods indicated:
|  | Three Months Ended |  | Six Months Ended
|  | June 30, |  | June 30,
|  | 2018 |  | 2017 |  | 2018 |  | 2017
|  | (Thousands of dollars)
Net periodic benefit cost other than service cost |  | $ | (2,403 | ) |  | $ | (4,313 | ) |  | $ | (4,137 | ) |  | $ | (8,626 | )
Other, net |  | 209 |  |  | 413 |  |  | (221 | ) |  | 1,319 |
Total other income (expense), net |  | $ | (2,194 | ) |  | $ | (3,900 | ) |  | $ | (4,358 | ) |  | $ | (7,307 | )

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- Definition The entire disclosure for the components of non-operating income or non-operating expense, including, but not limited to, amounts earned from dividends, interest on securities, gain (loss) on securities sold, equity earnings of unconsolidated affiliates, gain (loss) on sales of business, interest expense and other miscellaneous income or expense items. + References No definition available. + Details
Name: | us-gaap_OtherNonoperatingIncomeAndExpenseTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration