Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2022

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Change in Net Carrying Amount of Goodwill by Segment

The change in the net carrying amount of goodwill for the years ended December 31, 2022 and 2021 by segment is as follows:

	(in thousands)
	Steel		Steel			Raw
	Mills		Products			Materials			Total
Balance, December 31, 2020	$	612,470	$	887,625		$	729,577		$	2,229,672
Acquisitions		705		553,704			44,718			599,127
Translation		—		(1,455	)		—			(1,455	)
Balance, December 31, 2021		613,175		1,439,874			774,295			2,827,344
Acquisitions		62,011		1,087,906			—			1,149,917
Divestitures		—		—			(39,466	)		(39,466	)
Translation		—		(17,735	)		—			(17,735	)
Balance, December 31, 2022	$	675,186	$	2,510,045		$	734,829		$	3,920,060

Schedule of Intangible Assets

	(in thousands)
	December 31, 2022				December 31, 2021
	Gross		Accumulated		Gross		Accumulated
	Amount		Amortization		Amount		Amortization
Customer relationships	$	4,174,724	$	1,087,834	$	1,872,348	$	924,506
Trademarks and trade names		364,106		142,363		217,255		99,906
Other		109,746		96,114		105,522		66,954
	$	4,648,576	$	1,326,311	$	2,195,125	$	1,091,366