Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Segment Reporting Information [Line Items]
Net Sales	$ 355,620	$ 335,870	$ 1,071,430	$ 971,870
Operating profit (loss)	43,290	36,600	108,670	108,540
Packaging [Member]
Segment Reporting Information [Line Items]
Net Sales	82,010	77,240	235,000	202,250
Operating profit (loss)	31,320	18,240	65,550	44,700
Energy [Member]
Segment Reporting Information [Line Items]
Net Sales	47,680	45,460	161,420	143,220
Operating profit (loss)	1,450	3,780	12,530	14,520
Aerospace & Defense [Member]
Segment Reporting Information [Line Items]
Net Sales	26,540	20,810	71,250	58,000
Operating profit (loss)	6,060	6,030	15,330	15,710
Engineered Components [Member]
Segment Reporting Information [Line Items]
Net Sales	47,540	51,880	143,830	154,180
Operating profit (loss)	2,860	6,310	14,450	22,620
Cequent Asia Pacific Europe Africa [Member]
Segment Reporting Information [Line Items]
Net Sales	40,950	37,480	111,330	94,230
Operating profit (loss)	3,570	3,950	9,300	9,000
Cequent Americas [Member]
Segment Reporting Information [Line Items]
Net Sales	110,900	103,000	348,600	319,990
Operating profit (loss)	7,440	8,430	21,030	28,090
Corporate [Member]
Segment Reporting Information [Line Items]
Operating profit (loss)	$ (9,410)	$ (10,140)	$ (29,520)	$ (26,100)