Goodwill (Goodwill) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Jun. 30, 2013
Goodwill, Beginning Balance	$ 461,374
Additions	88,163
Effects of Currency Translation	(812)
Goodwill, Ending Balance	548,725
Energy [Member]
Goodwill, Beginning Balance	104,601
Additions	0
Effects of Currency Translation	(361)
Goodwill, Ending Balance	104,240
Aerospace [Member]
Goodwill, Beginning Balance	356,773
Additions	88,163
Effects of Currency Translation	(451)
Goodwill, Ending Balance	$ 444,485