Segment Information (Consolidated Total Assets by Segment) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013
Assets	$ 2,200,173	$ 2,218,518
Property, plant and equipment, net	375,589	350,048
Aerospace [Member]
Assets	1,331,896	1,361,861
Energy [Member]
Assets	586,846	599,007
Unallocated Corporate [Member]
Property, plant and equipment, net	57,824	50,115
Other unallocated assets	223,607	207,535
Total of Reporting Segments [Member]
Assets	$ 1,918,742	$ 1,960,868