Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in the carrying amount of goodwill for the years ended December 31, 2014 and 2013 are as follows:



									Engineered		Cequent		Cequent
	Packaging			Energy			Aerospace		Components		APEA		Americas			Total
	(dollars in thousands)
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
Goodwill from acquisitions	15,810			—			149,050		—		—		—			164,860
Foreign currency translation and other	(4,520		)	(2,740		)	—		—		—		(600		)	(7,860		)
Balance, December 31, 2014	$	169,350		$	73,180		$	210,130	$	7,420	$	—	$	6,580		$	466,660

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, 2014 and 2013 are summarized below. The Company amortizes these assets over periods ranging from one to 30 years.



	As of December 31, 2014					As of December 31, 2013
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	$	109,460	$	(44,370	)	$	105,090	$	(36,260	)
Customer relationships, 15 - 25 years	237,610		(103,390		)	154,610		(94,200		)
Total customer relationships	347,070		(147,760		)	259,700		(130,460		)
Technology and other, 1 - 15 years	71,830		(32,250		)	38,980		(28,940		)
Technology and other, 17 - 30 years	44,120		(27,560		)	43,990		(25,310		)
Total technology and other	115,950		(59,810		)	82,970		(54,250		)
Indefinite-lived intangible assets:
Trademark/Trade names	108,480		—			61,570		—
Total other intangible assets	$	571,500	$	(207,570	)	$	404,240	$	(184,710	)

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,
	2014		2013		2012
	(dollars in thousands)
Technology and other, included in cost of sales	$	5,310	$	4,870	$	4,940
Customer relationships, included in selling, general and administrative expenses	18,400		14,900		14,880
Total amortization expense	$	23,710	$	19,770	$	19,820

Schedule of Expected Amortization Expense [Table Text Block]

Estimated amortization expense for the next five fiscal years beginning after December 31, 2014 is as follows:



Year ended December 31,	Estimated Amortization Expense
	(dollars in thousands)
2015		$28,760
2016		$27,970
2017		$27,600
2018		$24,020
2019		$23,100