XML 96 R79.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Segment and Related Information (Details) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2017 USD ($) | Oct. 01, 2017 USD ($) | Jul. 02, 2017 USD ($) | Apr. 02, 2017 USD ($) | Dec. 31, 2016 USD ($) | Oct. 02, 2016 USD ($) | Jul. 03, 2016 USD ($) | Apr. 03, 2016 USD ($) | Dec. 31, 2017 USD ($) Segment | Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($)
Segment and Related Information [Abstract] |  |  |  |  |  |  |  |  |  |  |
Number of reportable segments | Segment |  |  |  |  |  |  |  |  | 4 |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 432.1 | $ 424.5 | $ 414.1 | $ 405.0 | $ 401.3 | $ 399.5 | $ 427.0 | $ 410.2 | $ 1,675.7 | $ 1,638.0 | $ 1,797.6
Income from operations | 45.7 | 66.8 | 68.5 | 61.7 | 56.5 | 67.3 | 39.5 | 57.6 | 242.7 | 220.9 | 200.3
Depreciation, depletion and amortization |  |  |  |  |  |  |  |  | 91.0 | 91.9 | 98.3
Segment assets | 2,970.4 |  |  |  | 2,863.4 |  |  |  | 2,970.4 | 2,863.4 | 2,980.0
Capital expenditures |  |  |  |  |  |  |  |  | 76.7 | 62.4 | 86.0
Income from operations before provision (benefit) for taxes on income [Abstract] |  |  |  |  |  |  |  |  |  |  |
Acquisition related transaction and integration costs |  |  |  |  |  |  |  |  | (3.4) | (8.0) | (11.8)
Unallocated corporate expenses |  |  |  |  |  |  |  |  | (8.4) | (6.0) | (7.0)
Consolidated income from operations | 45.7 | 66.8 | 68.5 | 61.7 | 56.5 | 67.3 | 39.5 | 57.6 | 242.7 | 220.9 | 200.3
Non-operating deductions, net |  |  |  |  |  |  |  |  | (51.8) | (50.6) | (67.7)
Income from continuing operations before provision (benefit) for taxes on income |  |  |  |  |  |  |  |  | 190.9 | 170.3 | 132.6
Specialty Minerals [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales | 143.9 | 147.7 | 147.0 | 146.2 | 138.0 | 147.3 | 150.6 | 155.6 |  |  |
Performance Materials [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales | 195.8 | 188.8 | 180.3 | 169.9 | 175.0 | 169.0 | 182.5 | 159.6 |  |  |
Refractories [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales | 71.3 | 69.0 | 68.9 | 70.2 | 68.0 | 63.4 | 73.9 | 69.2 |  |  |
Energy Services [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales | 21.1 | $ 19.0 | $ 17.9 | $ 18.7 | 20.3 | $ 19.8 | $ 20.0 | $ 25.8 |  |  |
Reportable Segments [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 1,675.7 | 1,638.0 | 1,797.6
Income from operations |  |  |  |  |  |  |  |  | 254.5 | 234.9 | 219.1
Depreciation, depletion and amortization |  |  |  |  |  |  |  |  | 91.0 | 91.9 | 98.3
Segment assets | 2,927.0 |  |  |  | 2,821.9 |  |  |  | 2,927.0 | 2,821.9 | 2,918.1
Capital expenditures |  |  |  |  |  |  |  |  | 76.1 | 60.5 | 85.2
Income from operations before provision (benefit) for taxes on income [Abstract] |  |  |  |  |  |  |  |  |  |  |
Consolidated income from operations |  |  |  |  |  |  |  |  | 254.5 | 234.9 | 219.1
Reportable Segments [Member] | Specialty Minerals [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 584.8 | 591.5 | 624.6
Income from operations |  |  |  |  |  |  |  |  | 88.9 | 102.7 | 100.8
Depreciation, depletion and amortization |  |  |  |  |  |  |  |  | 35.5 | 34.9 | 34.0
Segment assets | 519.4 |  |  |  | 491.7 |  |  |  | 519.4 | 491.7 | 505.3
Capital expenditures |  |  |  |  |  |  |  |  | 32.6 | 40.4 | 51.9
Income from operations before provision (benefit) for taxes on income [Abstract] |  |  |  |  |  |  |  |  |  |  |
Consolidated income from operations |  |  |  |  |  |  |  |  | 88.9 | 102.7 | 100.8
Reportable Segments [Member] | Performance Materials [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 734.8 | 686.1 | 694.9
Income from operations |  |  |  |  |  |  |  |  | 119.7 | 121.1 | 118.4
Depreciation, depletion and amortization |  |  |  |  |  |  |  |  | 40.5 | 38.9 | 39.4
Segment assets | 1,989.6 |  |  |  | 1,942.1 |  |  |  | 1,989.6 | 1,942.1 | 1,965.4
Capital expenditures |  |  |  |  |  |  |  |  | 33.1 | 12.8 | 11.1
Income from operations before provision (benefit) for taxes on income [Abstract] |  |  |  |  |  |  |  |  |  |  |
Consolidated income from operations |  |  |  |  |  |  |  |  | 119.7 | 121.1 | 118.4
Reportable Segments [Member] | Refractories [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 279.4 | 274.5 | 295.9
Income from operations |  |  |  |  |  |  |  |  | 39.8 | 37.0 | 27.8
Depreciation, depletion and amortization |  |  |  |  |  |  |  |  | 6.8 | 6.9 | 7.5
Segment assets | 307.4 |  |  |  | 283.4 |  |  |  | 307.4 | 283.4 | 292.7
Capital expenditures |  |  |  |  |  |  |  |  | 5.9 | 5.9 | 11.1
Income from operations before provision (benefit) for taxes on income [Abstract] |  |  |  |  |  |  |  |  |  |  |
Consolidated income from operations |  |  |  |  |  |  |  |  | 39.8 | 37.0 | 27.8
Reportable Segments [Member] | Energy Services [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 76.7 | 85.9 | 182.2
Income from operations |  |  |  |  |  |  |  |  | 6.1 | (25.9) | (27.9)
Depreciation, depletion and amortization |  |  |  |  |  |  |  |  | 8.2 | 11.2 | 17.4
Segment assets | 110.6 |  |  |  | 104.7 |  |  |  | 110.6 | 104.7 | 154.7
Capital expenditures |  |  |  |  |  |  |  |  | 4.5 | 1.4 | 11.1
Income from operations before provision (benefit) for taxes on income [Abstract] |  |  |  |  |  |  |  |  |  |  |
Consolidated income from operations |  |  |  |  |  |  |  |  | 6.1 | (25.9) | (27.9)
Corporate [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Segment assets | $ 43.4 |  |  |  | $ 41.5 |  |  |  | 43.4 | 41.5 | 61.9
Capital expenditures |  |  |  |  |  |  |  |  | $ 0.6 | $ 1.9 | $ 0.8

X
- Definition Amount of corporate headquarter items not allocated to segments. + References No definition available. + Details
Name: | mtx_UnallocatedCorporateExpenses
Namespace Prefix: | mtx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(12)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(11)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_Assets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=84229725&loc=d3e1043-128460 + Details
Name: | us-gaap_BusinessCombinationAcquisitionRelatedCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
Name: | us-gaap_DepreciationDepletionAndAmortization
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(1)(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
Name: | us-gaap_NonoperatingIncomeExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References No definition available. + Details
Name: | us-gaap_NumberOfReportableSegments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The net result for the period of deducting operating expenses from operating revenues. + References No definition available. + Details
Name: | us-gaap_OperatingIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_ReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
Name: | us-gaap_SalesRevenueNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_SegmentReportingAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=mtx_SpecialtyMineralsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=mtx_PerformanceMaterialsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=mtx_RefractoriesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=mtx_EnergyServicesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConsolidationItemsAxis=us-gaap_CorporateNonSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |