Information on Business Segments Details 1 (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Assets	$ 2,078,078	$ 2,073,885
Aerospace [Member]
Segment Reporting Information [Line Items]
Assets	645,555	655,042
Industrial [Member]
Segment Reporting Information [Line Items]
Assets	1,282,039	1,281,974
Other [Member]
Segment Reporting Information [Line Items]
Assets	$ 150,484	$ 136,869