Goodwill and Other Intangible Assets - Goodwill Rollforward (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013
Goodwill [Roll Forward]
Balance, beginning	$ 270,940
Goodwill from acquisitions	15,140
Foreign currency translation	(1,700)
Balance, ending	284,380
Packaging [Member]
Goodwill [Roll Forward]
Balance, beginning	158,980
Goodwill from acquisitions	0
Foreign currency translation	(1,790)
Balance, ending	157,190
Energy [Member]
Goodwill [Roll Forward]
Balance, beginning	64,210
Goodwill from acquisitions	6,720
Foreign currency translation	50
Balance, ending	70,980
Aerospace & Defense [Member]
Goodwill [Roll Forward]
Balance, beginning	41,130
Goodwill from acquisitions	8,420
Foreign currency translation	0
Balance, ending	49,550
Engineered Components [Member]
Goodwill [Roll Forward]
Balance, beginning	3,180
Goodwill from acquisitions	0
Foreign currency translation	0
Balance, ending	3,180
Cequent Asia Pacific [Member]
Goodwill [Roll Forward]
Balance, beginning	0
Goodwill from acquisitions	0
Foreign currency translation	0
Balance, ending	0
Cequent Americas [Member]
Goodwill [Roll Forward]
Balance, beginning	3,440
Goodwill from acquisitions	0
Foreign currency translation	40
Balance, ending	$ 3,480