Segment Information Operating Net Assets by Segment (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting, Asset Reconciling Item [Line Items]
Operating Net Assets	$ 1,039,270	$ 883,760	$ 765,560
Current Liabilities	261,510	247,200	226,340
Consolidated Assets	1,300,780	1,130,960	991,900
Continuing Operations [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Operating Net Assets	1,039,270	883,760	765,560
Continuing Operations [Member] | Packaging [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Operating Net Assets	377,480	376,040	310,520
Continuing Operations [Member] | Energy [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Operating Net Assets	180,410	158,710	116,980
Continuing Operations [Member] | Aerospace & Defense [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Operating Net Assets	150,750	80,620	71,280
Continuing Operations [Member] | Engineered Components [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Operating Net Assets	73,780	68,870	63,420
Continuing Operations [Member] | Cequent Asia Pacific [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Operating Net Assets	81,120	51,790	42,010
Continuing Operations [Member] | Cequent Americas [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Operating Net Assets	164,590	145,360	126,680
Continuing Operations [Member] | Corporate [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Operating Net Assets	$ 11,140	$ 2,370	$ 34,670