Changes in Carrying Amount of Goodwill and Intangible Assets (Detail) (USD $) In Thousands	9 Months Ended
Jun. 30, 2011
Goodwill
Balance as of September 30, 2010	$ 2,077,943
Acquisitions	222,545
Purchase accounting adjustments	4,366
Effect of foreign currency translation	13,701
Balance as of June 30, 2011	2,318,555
Intangible Assets
Balance as of September 30, 2010	685,865
Acquisitions	171,556
Purchase accounting adjustments	648
Amortization	(105,762)
Effect of foreign currency translation	5,292
Balance as of June 30, 2011	$ 757,599

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Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

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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.

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