Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2014

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, 2014 were as follows:

	Metals Segment			Plastics Segment		Total
Balance as of January 1, 2014
Goodwill	$	116,533		$	12,973	$	129,506
Accumulated impairment losses	(60,217		)	—		(60,217		)
Balance as of January 1, 2014	56,316			12,973		69,289
Currency valuation	(535		)	—		(535		)
Balance as of March 31, 2014
Goodwill	115,998			12,973		128,971
Accumulated impairment losses	(60,217		)	—		(60,217		)
Balance as of March 31, 2014	$	55,781		$	12,973	$	68,754

Summary of the components of intangible assets

The following table summarizes the components of intangible assets:

	March 31, 2014				December 31, 2013
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Customer relationships	$	117,141	$	57,579	$	117,794	$	55,157
Non-compete agreements	3,888		3,652		3,888		3,569
Trade name	7,953		2,114		8,025		1,939
Developed technology	1,400		1,069		1,400		953
Total	$	130,382	$	64,414	$	131,107	$	61,618

Summary of the estimated annual amortization expense

The following is a summary of the estimated annual amortization expense for 2014 and each of the next 4 years:

2014	$	11,639
2015	10,872
2016	10,872
2017	8,849
2018	4,728