Goodwill (Narrative) (Details) (USD $)	3 Months Ended
Dec. 31, 2012	Sep. 30, 2012
Goodwill addition	$ 81,898,000
Impairment		0
Assumed annual compound growth rate after five or ten years		4.05%
Aerospace [Member]
Goodwill addition	81,898,000
Energy [Member]
Goodwill addition	0
Minimum [Member]
Weighted average cost of capital assumption		8.88%
Maximum [Member]
Weighted average cost of capital assumption		9.60%
Business Acquisition, Acquiree - Duarte Business [Member] \| Aerospace [Member]
Goodwill addition	$ 81,898,000

The aggregate amount of goodwill acquired in the period and allocated to the reportable segment. The value is stated at fair value based on the purchase price allocation.

+ References+ Details

Loss recognized during the period that results from the write-down of goodwill after comparing the implied fair value of reporting unit goodwill with the carrying amount of that goodwill. Goodwill is assessed at least annually for impairment.

+ References

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+ Details