Information on Business Segments Details 1 (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Assets	$ 2,221,883	$ 2,061,866
Aerospace [Member]
Segment Reporting Information [Line Items]
Assets	637,232	654,147
Industrial [Member]
Segment Reporting Information [Line Items]
Assets	1,441,695	1,241,206
Other [Member]
Segment Reporting Information [Line Items]
Assets	$ 142,956	$ 166,513