Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Change in Net Carrying Amount of Goodwill by Segment

4. GOODWILL AND OTHER INTANGIBLE ASSETS: The change in the net carrying amount of goodwill for the three months ended March 31, 2018 by segment was as follows (in thousands):

	Steel Mills			Steel Products			Raw Materials		Total
Balance at December 31, 2017	$	745,484		$	720,997		$	729,577	$	2,196,058
Translation		—			(493	)		—		(493	)
Reclassifications		(153,498	)		153,498			—		—
Balance at March 31, 2018	$	591,986		$	874,002		$	729,577	$	2,195,565

Schedule of Intangible Assets

Intangible assets with estimated useful lives of five to 22 years are amortized on a straight-line or accelerated basis and were comprised of the following as of March 31, 2018 and December 31, 2017 (in thousands):

	March 31, 2018				December 31, 2017
	Gross Amount		Accumulated Amortization		Gross Amount		Accumulated Amortization
Customer relationships	$	1,420,166	$	659,469	$	1,420,224	$	641,089
Trademarks and trade names		176,457		79,833		176,471		77,208
Other		62,807		28,007		62,805		26,557
	$	1,659,430	$	767,309	$	1,659,500	$	744,854