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Restructuring Restructuring (Details) (USD $)	3 Months Ended		6 Months Ended
Restructuring Restructuring (Details) (USD $)	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013
Restructuring [Abstract]
Restructuring and Related Cost, Expected Cost	$ 2,000,000
Restructuring expense	$ 780,000	$ 0	$ 1,400,000

Amount expected to be charged against earnings in the current and future periods for the specified restructuring cost.

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- Definition

Amount charged against earnings in the period for incurred and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding asset retirement obligations.

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