Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in carrying amounts of goodwill

The changes in carrying amounts of goodwill during the three months ended March 31, 2013 were as follows:

	Metals Segment			Plastics Segment		Total
Balance as of January 1, 2013
Goodwill	$	117,544		$	12,973	$	130,517
Accumulated impairment losses	(60,217		)	—		(60,217		)
Balance as of January 1, 2013	57,327			12,973		70,300
Currency valuation	(293		)	—		(293		)
Balance as of March 31, 2013
Goodwill	117,251			12,973		130,224
Accumulated impairment losses	(60,217		)	—		(60,217		)
Balance as of March 31, 2013	$	57,034		$	12,973	$	70,007

Summary of the components of intangible assets

The following table summarizes the components of intangible assets:

	March 31, 2013				December 31, 2012
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Customer relationships	$	118,589	$	47,726	$	119,118	$	45,317
Non-compete agreements	3,888		3,319		3,888		3,235
Trade name	8,255		1,382		8,297		1,188
Developed technology	1,400		603		1,400		486
Total	$	132,132	$	53,030	$	132,703	$	50,226

Summary of the estimated annual amortization expense

The following is a summary of the estimated annual amortization expense for 2013 and each of the next 4 years:

2013	$	11,769
2014	11,735
2015	10,969
2016	10,969
2017	8,945