Goodwill and Other Intangible Assets - Goodwill Rollforward (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013
Goodwill [Roll Forward]
Balance, beginning	$ 270,940
Goodwill from acquisitions	22,700
Goodwill, Written off Related to Sale of Business Unit	(2,060)
Foreign currency translation	(1,310)
Balance, ending	290,270
Packaging [Member]
Goodwill [Roll Forward]
Balance, beginning	158,980
Goodwill from acquisitions	0
Goodwill, Written off Related to Sale of Business Unit	(2,060)
Foreign currency translation	410
Balance, ending	157,330
Energy [Member]
Goodwill [Roll Forward]
Balance, beginning	64,210
Goodwill from acquisitions	14,280
Goodwill, Written off Related to Sale of Business Unit	0
Foreign currency translation	(1,450)
Balance, ending	77,040
Aerospace & Defense [Member]
Goodwill [Roll Forward]
Balance, beginning	41,130
Goodwill from acquisitions	8,420
Goodwill, Written off Related to Sale of Business Unit	0
Foreign currency translation	0
Balance, ending	49,550
Engineered Components [Member]
Goodwill [Roll Forward]
Balance, beginning	3,180
Goodwill from acquisitions	0
Goodwill, Written off Related to Sale of Business Unit	0
Foreign currency translation	0
Balance, ending	3,180
Cequent Asia Pacific Europe Africa [Member]
Goodwill [Roll Forward]
Balance, beginning	0
Goodwill from acquisitions	0
Goodwill, Written off Related to Sale of Business Unit	0
Foreign currency translation	0
Balance, ending	0
Cequent Americas [Member]
Goodwill [Roll Forward]
Balance, beginning	3,440
Goodwill from acquisitions	0
Goodwill, Written off Related to Sale of Business Unit	0
Foreign currency translation	(270)
Balance, ending	$ 3,170