Accrued Liabilities (Restructuring and Other Charges) (Details) (USD $) In Thousands	12 Months Ended	3 Months Ended	12 Months Ended
Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010 Lease Settlement [Member] Business Acquisitions [Member]	Dec. 31, 2010 Facility Closing [Member] Business Acquisitions [Member]	Sep. 30, 2011 Non-Acquisition [Member]	Sep. 30, 2010 Non-Acquisition [Member]	Sep. 30, 2011 Business Acquisitions [Member]	Sep. 30, 2010 Business Acquisitions [Member]
Accrued restructuring charges, beginning balance	$ 6,113	$ 12,864			$ 667	$ 3,196	$ 5,446	$ 9,668
Payments	(984)	(8,357)			(279)	(2,027)	(705)	(6,330)
Purchase accounting adjustments	0	1,834					0	1,834
Non-cash adjustments	(2,219)	(189)	(103)	(1,513)	(22)	(463)	(2,197)	274
Foreign currency exchange rates	(1)	(39)			(1)	(39)
Accrued restructuring charges, ending balance	2,909	6,113			365	667	2,544	5,446
Non-current accrued restructuring charges	$ 420	$ 1,251

Amount of any reversal and other adjustment made during the period to the amount of a previously accrued liability for a specified type of restructuring cost, excluding adjustments for costs incurred during the period, costs settled during the period, and foreign currency translation adjustments.

Carrying amount as of the balance sheet date of known and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid after one year or beyond the next operating cycle, if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

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