Goodwill (Goodwill) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Goodwill, Beginning Balance	$ 561,458	$ 461,374
Additions	0	98,310
Effects of Currency Translation	(1,734)	1,773
Goodwill, Ending Balance	559,724	561,458
Aerospace [Member]
Goodwill, Beginning Balance	455,107	356,773
Additions	0	98,310
Effects of Currency Translation	316	23
Goodwill, Ending Balance	455,423	455,107
Energy [Member]
Goodwill, Beginning Balance	106,351	104,601
Additions	0	0
Effects of Currency Translation	(2,050)	1,750
Goodwill, Ending Balance	$ 104,301	$ 106,351