Information on Business Segments Details 1 (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013		Dec. 31, 2012
Segment Reporting Information [Line Items]
Assets	$ 1,875,608		$ 1,868,596
Aerospace [Member]
Segment Reporting Information [Line Items]
Assets	531,920		533,465
Industrial [Member]
Segment Reporting Information [Line Items]
Assets	907,505		907,124
Other [Member]
Segment Reporting Information [Line Items]
Assets	$ 436,183	[1]	$ 428,007	[1]

[1] "Other" assets include corporate-controlled assets, the majority of which are cash and deferred tax assets, as well as the assets of BDNA which are classified as held for sale in the accompanying consolidated balance sheet as of March 31, 2013. See Note 2.