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Revenue Recognition - Schedule of Company's Total Revenues by Category for each Reportable Segment (Detail) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2019 | Mar. 31, 2018
Revenue Recognition [Line Items] |  |
Total | $ 938,955 | $ 802,004
Building Materials Business |  |
Revenue Recognition [Line Items] |  |
Total | 864,881 | 732,742
Products and Services |  |
Revenue Recognition [Line Items] |  |
Total | 878,305 | 753,305
Products and Services | Building Materials Business |  |
Revenue Recognition [Line Items] |  |
Total | 809,131 | 688,436
Freight |  |
Revenue Recognition [Line Items] |  |
Total | 60,650 | 48,699
Freight | Building Materials Business |  |
Revenue Recognition [Line Items] |  |
Total | 55,750 | 44,306
Operating Segments | Building Materials Business Mid-America Group |  |
Revenue Recognition [Line Items] |  |
Total | 248,813 | 178,781
Operating Segments | Building Materials Business Southeast Group |  |
Revenue Recognition [Line Items] |  |
Total | 119,237 | 80,239
Operating Segments | Building Materials Business West Group |  |
Revenue Recognition [Line Items] |  |
Total | 496,831 | 473,722
Operating Segments | Building Materials Business |  |
Revenue Recognition [Line Items] |  |
Total | 864,881 | 732,742
Operating Segments | Magnesia Specialties |  |
Revenue Recognition [Line Items] |  |
Total | 74,074 | 69,262
Operating Segments | Products and Services | Building Materials Business Mid-America Group |  |
Revenue Recognition [Line Items] |  |
Total | 230,308 | 167,890
Operating Segments | Products and Services | Building Materials Business Southeast Group |  |
Revenue Recognition [Line Items] |  |
Total | 115,312 | 77,563
Operating Segments | Products and Services | Building Materials Business West Group |  |
Revenue Recognition [Line Items] |  |
Total | 463,511 | 442,983
Operating Segments | Products and Services | Magnesia Specialties |  |
Revenue Recognition [Line Items] |  |
Total | 69,174 | 64,869
Operating Segments | Freight | Building Materials Business Mid-America Group |  |
Revenue Recognition [Line Items] |  |
Total | 18,505 | 10,891
Operating Segments | Freight | Building Materials Business Southeast Group |  |
Revenue Recognition [Line Items] |  |
Total | 3,925 | 2,676
Operating Segments | Freight | Building Materials Business West Group |  |
Revenue Recognition [Line Items] |  |
Total | 33,320 | 30,739
Operating Segments | Freight | Building Materials Business |  |
Revenue Recognition [Line Items] |  |
Total | 55,750 | 44,306
Operating Segments | Freight | Magnesia Specialties |  |
Revenue Recognition [Line Items] |  |
Total | $ 4,900 | $ 4,393

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- 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
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