Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jul. 04, 2015

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 six months ended July 4, 2015, by segment is as follows (in thousands):

	Steel Mills			Steel Products			Raw Materials		Total
Balance at December 31, 2014	$	594,402		$	744,685		$	729,577	$	2,068,664
Translation		—			(18,566	)		—		(18,566	)
Other		(4,000	)		—			—		(4,000	)
Balance at July 4, 2015	$	590,402		$	726,119		$	729,577	$	2,046,098

Schedule of Intangible Assets

Intangible assets with estimated useful lives of 5 to 22 years are amortized on a straight-line or accelerated basis and are comprised of the following (in thousands):

	July 4, 2015				December 31, 2014
	Gross Amount		Accumulated Amortization		Gross Amount		Accumulated Amortization
Customer relationships	$	1,194,549	$	485,849	$	1,199,942	$	454,353
Trademarks and trade names		157,604		53,077		158,584		48,356
Other		23,047		17,224		22,823		16,547
	$	1,375,200	$	556,150	$	1,381,349	$	519,256