Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Finite And Indefinite Lived Intangible Assets [Line Items]
Goodwill	$ 2,827,344,000	$ 2,229,672,000	$ 2,201,063,000
Intangible asset amortization expense	129,200,000	83,400,000	85,700,000
Future amortization expense, in 2022	154,600,000
Future amortization expense, in 2023	132,900,000
Future amortization expense, in 2024	132,100,000
Future amortization expense, in 2025	131,200,000
Future amortization expense, in 2026	128,200,000
Impairment of goodwill	0	0	$ 0
Finite-lived intangible assets	$ 1,103,759,000	$ 668,021,000
Rebar Fabrication [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Percentage of fair value exceeded carrying value	54.00%
Goodwill	$ 363,000,000.0
Finite-lived intangible assets	$ 45,000,000.0
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