Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

Changes in the carrying amount of goodwill for the years ended December 31, 2013 and 2012 are as follows:

							Aerospace		Engineered		Cequent		Cequent
	Packaging			Energy			& Defense		Components		APEA		Americas			Total
	(dollars in thousands)
Balance, December 31, 2011	$	122,330		$	48,720		$	41,130	$	3,180	$	—	$	—		$	215,360
Goodwill from acquisitions	35,420			15,500			—		—		—		3,470			54,390
Foreign currency translation and other	1,230			(10		)	—		—		—		(30		)	1,190
Balance, December 31, 2012	$	158,980		$	64,210		$	41,130	$	3,180	$	—	$	3,440		$	270,940
Goodwill from acquisitions	—			14,440			19,950		4,240		—		4,410			43,040
Goodwill associated with sold businesses	(2,060		)	—			—		—		—		—			(2,060		)
Foreign currency translation and other	1,140			(2,730		)	—		—		—		(670		)	(2,260		)
Balance, December 31, 2013	$	158,060		$	75,920		$	61,080	$	7,420	$	—	$	7,180		$	309,660

Schedule of Intangible Assets (excluding Goodwill) by Major Class

The gross carrying amounts and accumulated amortization of the Company's other intangibles as of December 31, 2013 and 2012 are summarized below. The Company amortizes these assets over periods ranging from one to 30 years.

	As of December 31, 2013					As of December 31, 2012
Intangible Category by Useful Life	Gross Carrying Amount		Accumulated Amortization			Gross Carrying Amount		Accumulated Amortization
	(dollars in thousands)
Finite-lived intangible assets:
Customer relationships, 5 - 12 years	$	105,090	$	(36,260	)	$	85,740	$	(30,080	)
Customer relationships, 15 - 25 years	154,610		(94,200		)	154,610		(85,960		)
Total customer relationships	259,700		(130,460		)	240,350		(116,040		)
Technology and other, 1 - 15 years	38,980		(28,940		)	37,130		(26,320		)
Technology and other, 17 - 30 years	43,990		(25,310		)	43,800		(23,070		)
Total technology and other	82,970		(54,250		)	80,930		(49,390		)
Indefinite-lived intangible assets:
Trademark/Trade names	61,570		—			50,310		—
Total other intangible assets	$	404,240	$	(184,710	)	$	371,590	$	(165,430	)

Schedule of Finite-Lived Intangible Assets, Amortization Expense

Amortization expense related to intangible assets as included in the accompanying consolidated statement of income is summarized as follows:

	Year ended December 31,
	2013		2012		2011
	(dollars in thousands)
Technology and other, included in cost of sales	$	4,870	$	4,940	$	3,490
Customer relationships, included in selling, general and administrative expenses	14,900		14,880		11,020
Total amortization expense	$	19,770	$	19,820	$	14,510

Schedule of Expected Amortization Expense [Table Text Block]

Estimated amortization expense for the next five fiscal years beginning after December 31, 2013 is as follows:

Year ended December 31,	Estimated Amortization Expense
	(dollars in thousands)
2014		$21,990
2015		$21,230
2016		$20,430
2017		$20,070
2018		$16,590