Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Segment Reporting Information [Line Items]
Net Sales	$ 378,030	$ 338,430	$ 715,810	$ 636,000
Operating profit (loss)	41,640	43,200	65,380	71,940
Packaging [Member]
Segment Reporting Information [Line Items]
Net Sales	78,640	70,700	152,990	125,010
Operating profit (loss)	19,600	16,570	34,230	26,460
Energy [Member]
Segment Reporting Information [Line Items]
Net Sales	58,820	47,170	113,740	97,760
Operating profit (loss)	5,210	4,350	11,080	10,740
Aerospace & Defense [Member]
Segment Reporting Information [Line Items]
Net Sales	23,740	19,330	44,710	37,190
Operating profit (loss)	5,520	4,820	9,270	9,680
Engineered Components [Member]
Segment Reporting Information [Line Items]
Net Sales	50,020	52,620	96,290	102,300
Operating profit (loss)	5,890	8,600	11,590	16,310
Cequent Asia Pacific Europe Africa [Member]
Segment Reporting Information [Line Items]
Net Sales	38,290	28,550	70,380	56,750
Operating profit (loss)	2,550	2,010	5,730	5,050
Cequent Americas [Member]
Segment Reporting Information [Line Items]
Net Sales	128,520	120,060	237,700	216,990
Operating profit (loss)	12,890	15,500	13,590	19,660
Corporate [Member]
Segment Reporting Information [Line Items]
Operating profit (loss)	$ (10,020)	$ (8,650)	$ (20,110)	$ (15,960)