Goodwill and Other Intangible Assets Goodwill Rollforward (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2015 USD ($)
Goodwill [Roll Forward]
Balance, beginning	$ 460,080
Balance, ending	457,720
Packaging [Member]
Goodwill [Roll Forward]
Balance, beginning	169,350
Translation and purchase accounting adjustments	(1,510)
Balance, ending	167,840
Energy [Member]
Goodwill [Roll Forward]
Balance, beginning	73,180
Translation and purchase accounting adjustments	(850)
Balance, ending	72,330
Aerospace [Member]
Goodwill [Roll Forward]
Balance, beginning	210,130
Translation and purchase accounting adjustments	0
Balance, ending	210,130
Engineered Components [Member]
Goodwill [Roll Forward]
Balance, beginning	7,420
Translation and purchase accounting adjustments	0
Balance, ending	$ 7,420