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Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 28, 2019 | Sep. 29, 2018 | Sep. 28, 2019 | Sep. 29, 2018 | Dec. 31, 2018
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |
Goodwill | $ 2,186,499 |  | $ 2,186,499 |  | $ 2,184,336
Finite-lived intangible assets | 764,267 |  | 764,267 |  | 828,504
Intangible asset amortization expense | 22,000 | $ 22,100 | 64,700 | $ 66,700 |
Future amortization expense, in 2019 | 87,100 |  | 87,100 |  |
Future amortization expense, in 2020 | 84,700 |  | 84,700 |  |
Future amortization expense, in 2021 | 83,500 |  | 83,500 |  |
Future amortization expense, in 2022 | 81,200 |  | 81,200 |  |
Future amortization expense, in 2023 | 80,000 |  | $ 80,000 |  |
Minimum [Member] |  |  |  |  |
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |
Intangible assets, useful life |  |  | 5 years |  |
Maximum [Member] |  |  |  |  |
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |
Intangible assets, useful life |  |  | 22 years |  |
Rebar Fabrication [Member] |  |  |  |  |
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |
Percentage of fair value exceeded carrying value |  |  | 8.00% |  |
Goodwill | 354,900 |  | $ 354,900 |  | 353,000
Finite-lived intangible assets | 69,400 |  | $ 69,400 |  | $ 76,700
Grating unit [Member] |  |  |  |  |
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |
Percentage of fair value exceeded carrying value |  |  | 17.00% |  |
Goodwill | 36,700 |  | $ 36,700 |  |
Finite-lived intangible assets | $ 3,300 |  | $ 3,300 |  |

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- Definition Finite And Indefinite Lived Intangible Assets [Line Items] + References No definition available. + Details
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- Definition Percentage by which fair value exceeded carrying value in the most recent assessment that was performed. + References No definition available. + Details
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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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