Segment Information (Consolidated Total Assets by Segment) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Sep. 30, 2013
Assets	$ 2,238,440	$ 2,218,518
Property, plant and equipment, net	401,050	350,048
Aerospace [Member]
Assets	1,362,822	1,361,861
Energy [Member]
Assets	586,551	599,007
Unallocated Corporate [Member]
Property, plant and equipment, net	62,944	50,115
Other unallocated assets	226,123	207,535
Total of Reporting Segments [Member]
Assets	$ 1,949,373	$ 1,960,868