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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 | MINERALS TECHNOLOGIES INC. & SUBSIDIARY COMPANIES SCHEDULE II-VALUATION AND QUALIFYING ACCOUNTS (millions of dollars)
Description |  | Balance at Beginning of Period |  |  | Additions Charged to Costs, Provisions and Expenses |  |  | Deductions (a) |  |  | Balance at End of Period |
Year ended December 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |
Valuation and qualifying accounts deducted from assets to which they apply: |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | 7.9 |  |  |  | 3.8 |  |  |  | (7.5 | ) |  |  | 4.2 |
Year ended December 31, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Valuation and qualifying accounts deducted from assets to which they apply: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | 4.4 |  |  |  | 6.2 |  |  |  | (2.7 | ) |  |  | 7.9 |
Year ended December 31, 2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Valuation and qualifying accounts deducted from assets to which they apply: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | 3.6 |  |  |  | 2.6 |  |  |  | (1.8 | ) |  |  | 4.4 |
(a) | Includes impact of translation of foreign currencies.

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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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