XML 67 R54.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Segment and Related Information, Sales By Product Category (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 01, 2018 | Jul. 02, 2017 | Jul. 01, 2018 | Jul. 02, 2017
Revenue from External Customer [Abstract] |  |  |  |
Net Sales | $ 464.7 | $ 414.1 | $ 896.0 | $ 819.1
Metalcasting [Member] |  |  |  |
Revenue from External Customer [Abstract] |  |  |  |
Net Sales | 88.8 | 75.7 | 168.0 | 142.3
Household, Personal Care and Specialty Products [Member] |  |  |  |
Revenue from External Customer [Abstract] |  |  |  |
Net Sales | 58.6 | 39.7 | 107.3 | 80.8
Environmental Products [Member] |  |  |  |
Revenue from External Customer [Abstract] |  |  |  |
Net Sales | 25.2 | 19.6 | 37.9 | 30.2
Building Materials [Member] |  |  |  |
Revenue from External Customer [Abstract] |  |  |  |
Net Sales | 18.0 | 20.2 | 36.9 | 37.6
Basic Minerals [Member] |  |  |  |
Revenue from External Customer [Abstract] |  |  |  |
Net Sales | 23.9 | 25.1 | 51.7 | 59.3
Paper PCC [Member] |  |  |  |
Revenue from External Customer [Abstract] |  |  |  |
Net Sales | 94.5 | 92.3 | 191.5 | 185.7
Specialty PCC [Member] |  |  |  |
Revenue from External Customer [Abstract] |  |  |  |
Net Sales | 17.3 | 17.4 | 34.3 | 34.4
Ground Calcium Carbonate [Member] |  |  |  |
Revenue from External Customer [Abstract] |  |  |  |
Net Sales | 25.2 | 23.3 | 47.7 | 44.8
Talc [Member] |  |  |  |
Revenue from External Customer [Abstract] |  |  |  |
Net Sales | 13.9 | 14.0 | 27.0 | 28.3
Refractory Products [Member] |  |  |  |
Revenue from External Customer [Abstract] |  |  |  |
Net Sales | 66.7 | 56.1 | 129.0 | 112.8
Metallurgical Products [Member] |  |  |  |
Revenue from External Customer [Abstract] |  |  |  |
Net Sales | 12.9 | 12.8 | 25.9 | 26.3
Energy Services [Member] |  |  |  |
Revenue from External Customer [Abstract] |  |  |  |
Net Sales | $ 19.7 | $ 17.9 | $ 38.8 | $ 36.6

X
- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045 + Details
Name: | us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- Details
Name: | srt_ProductOrServiceAxis=mtx_MetalcastingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=mtx_HouseholdPersonalCareAndSpecialtyProductsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=mtx_EnvironmentalProductsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=mtx_BuildingMaterialsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=us-gaap_MineralMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=mtx_PaperPccMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=mtx_SpecialtyPccMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=mtx_GroundCalciumCarbonateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=mtx_TalcMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=mtx_RefractoryProductsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=mtx_MetallurgicalProductsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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