Goodwill and Other Intangible Assets - Goodwill Rollforward (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Goodwill [Roll Forward]
Balance, beginning	$ 309,660us-gaap_Goodwill	$ 270,940us-gaap_Goodwill
Goodwill from acquisitions	164,860us-gaap_GoodwillAcquiredDuringPeriod	43,040us-gaap_GoodwillAcquiredDuringPeriod
Goodwill, Written off Related to Sale of Business Unit		(2,060)
Foreign currency translation	(7,860)us-gaap_GoodwillTranslationAdjustments	(2,260)us-gaap_GoodwillTranslationAdjustments
Balance, ending	466,660us-gaap_Goodwill	309,660us-gaap_Goodwill
Packaging [Member]
Goodwill [Roll Forward]
Balance, beginning	158,060	158,980
Goodwill from acquisitions	15,810	0
Goodwill, Written off Related to Sale of Business Unit		(2,060)
Foreign currency translation	(4,520)	1,140
Balance, ending	169,350	158,060
Energy [Member]
Goodwill [Roll Forward]
Balance, beginning	75,920	64,210
Goodwill from acquisitions	0	14,440
Goodwill, Written off Related to Sale of Business Unit		0
Foreign currency translation	(2,740)	(2,730)
Balance, ending	73,180	75,920
Aerospace [Member]
Goodwill [Roll Forward]
Balance, beginning	61,080	41,130
Goodwill from acquisitions	149,050	19,950
Goodwill, Written off Related to Sale of Business Unit		0
Foreign currency translation	0	0
Balance, ending	210,130	61,080
Engineered Components [Member]
Goodwill [Roll Forward]
Balance, beginning	7,420	3,180
Goodwill from acquisitions	0	4,240
Goodwill, Written off Related to Sale of Business Unit		0
Foreign currency translation	0	0
Balance, ending	7,420	7,420
Cequent Asia Pacific Europe Africa [Member]
Goodwill [Roll Forward]
Balance, beginning	0	0
Goodwill from acquisitions	0	0
Goodwill, Written off Related to Sale of Business Unit		0
Foreign currency translation	0	0
Balance, ending	0	0
Cequent Americas [Member]
Goodwill [Roll Forward]
Balance, beginning	7,180	3,440
Goodwill from acquisitions	0	4,410
Goodwill, Written off Related to Sale of Business Unit		0
Foreign currency translation	(600)	(670)
Balance, ending	$ 6,580	$ 7,180

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

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-Section 45

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

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-Section 50

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Amount of increase (decrease) from foreign currency translation adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

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-Section 50

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Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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