Information on Business Segments Details 1 (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Assets	$ 2,214,624	$ 2,123,673
Aerospace [Member]
Segment Reporting Information [Line Items]
Assets	658,948	567,080
Industrial [Member]
Segment Reporting Information [Line Items]
Assets	1,414,500	1,410,400
Other [Member]
Segment Reporting Information [Line Items]
Assets	$ 141,176	$ 146,193