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Schedule II Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2017
Schedule II - Valuation and Qualifying Accounts [Abstract] |
Schedule II - Valuation and Qualifying Accounts |
Valuation and Qualifying Accounts
Fiscal Years Ended in December
(Thousands of Dollars)
|  | Balance at |  |  |  |  |  |  |  |  |  |  | Balance
|  | Beginning of |  | Expense |  | Other |  | Write-Offs |  | at End of
|  | Year |  | (Benefit) |  | Additions |  | and Other |  | Year
Valuation accounts deducted from assets |  |  |  |  |  |  |  |  |  |  |  |  |  |
| to which they apply – for doubtful |  |  |  |  |  |  |  |  |  |  |  |  |  |
| accounts receivable: |  |  |  |  |  |  |  |  |  |  |  |  |  |
2017 | $ | 16,800 |  |  | 9,571 |  |  | — |  |  | (2,485) |  | $ | 23,886
2016 | $ | 14,900 |  |  | 19,500 |  |  | — |  |  | (17,600) |  | $ | 16,800
2015 | $ | 15,900 |  |  | 2,400 |  |  | — |  |  | (3,400) |  | $ | 14,900

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- Definition The entire disclosure for any allowance and reserve accounts (their beginning and ending balances, as well as a reconciliation by type of activity during the period). Alternatively, disclosure of the required information may be within the footnotes to the financial statements or a supplemental schedule to the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -URI http://asc.fasb.org/topic&trid=2122369 + Details
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- References No definition available. + Details
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