XML 52 R40.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Revenue Recognition - Schedule of Company's Total Revenues by Category for each Reportable Segment (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Revenue Recognition [Line Items] |  |  |  |
Total | $ 1,219,640 | $ 1,087,732 | $ 3,224,047 | $ 2,995,116
Building Materials Business |  |  |  |
Revenue Recognition [Line Items] |  |  |  |
Total | 1,146,117 | 1,023,827 | 3,008,300 | 2,792,606
Products and Services |  |  |  |
Revenue Recognition [Line Items] |  |  |  |
Total | 1,142,218 | 1,022,487 | 3,024,300 | 2,811,646
Products and Services | Building Materials Business |  |  |  |
Revenue Recognition [Line Items] |  |  |  |
Total | 1,073,853 | 962,598 | 2,822,910 | 2,621,728
Freight |  |  |  |
Revenue Recognition [Line Items] |  |  |  |
Total | 77,422 | 65,245 | 199,747 | 183,470
Freight | Building Materials Business |  |  |  |
Revenue Recognition [Line Items] |  |  |  |
Total | 72,264 | 61,229 | 185,390 | 170,878
Operating Segments | Building Materials Business Mid-America Group |  |  |  |
Revenue Recognition [Line Items] |  |  |  |
Total | 377,005 | 308,472 | 906,377 | 788,390
Operating Segments | Building Materials Business Southeast Group |  |  |  |
Revenue Recognition [Line Items] |  |  |  |
Total | 125,547 | 94,843 | 318,749 | 277,474
Operating Segments | Building Materials Business West Group |  |  |  |
Revenue Recognition [Line Items] |  |  |  |
Total | 643,565 | 620,512 | 1,783,174 | 1,726,742
Operating Segments | Building Materials Business |  |  |  |
Revenue Recognition [Line Items] |  |  |  |
Total | 1,146,117 | 1,023,827 | 3,008,300 | 2,792,606
Operating Segments | Magnesia Specialties |  |  |  |
Revenue Recognition [Line Items] |  |  |  |
Total | 73,523 | 63,905 | 215,747 | 202,510
Operating Segments | Products and Services | Building Materials Business Mid-America Group |  |  |  |
Revenue Recognition [Line Items] |  |  |  |
Total | 348,429 | 287,085 | 841,897 | 734,406
Operating Segments | Products and Services | Building Materials Business Southeast Group |  |  |  |
Revenue Recognition [Line Items] |  |  |  |
Total | 121,661 | 91,427 | 308,306 | 266,690
Operating Segments | Products and Services | Building Materials Business West Group |  |  |  |
Revenue Recognition [Line Items] |  |  |  |
Total | 603,763 | 584,086 | 1,672,707 | 1,620,632
Operating Segments | Products and Services | Magnesia Specialties |  |  |  |
Revenue Recognition [Line Items] |  |  |  |
Total | 68,365 | 59,889 | 201,390 | 189,918
Operating Segments | Freight | Building Materials Business Mid-America Group |  |  |  |
Revenue Recognition [Line Items] |  |  |  |
Total | 28,576 | 21,387 | 64,480 | 53,984
Operating Segments | Freight | Building Materials Business Southeast Group |  |  |  |
Revenue Recognition [Line Items] |  |  |  |
Total | 3,886 | 3,416 | 10,443 | 10,784
Operating Segments | Freight | Building Materials Business West Group |  |  |  |
Revenue Recognition [Line Items] |  |  |  |
Total | 39,802 | 36,426 | 110,467 | 106,110
Operating Segments | Freight | Building Materials Business |  |  |  |
Revenue Recognition [Line Items] |  |  |  |
Total | 72,264 | 61,229 | 185,390 | 170,878
Operating Segments | Freight | Magnesia Specialties |  |  |  |
Revenue Recognition [Line Items] |  |  |  |
Total | $ 5,158 | $ 4,016 | $ 14,357 | $ 12,592

X
- Definition Revenue recognition. + References No definition available. + Details
Name: | mlm_RevenueRecognitionLineItems
Namespace Prefix: | mlm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

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

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

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

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

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

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

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