Redeemable Noncontrolling Interest (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Dec. 31, 2012	Dec. 31, 2011
Noncontrolling Interest [Abstract]
Temporary Equity, Increase From Business Acquisitions	$ 2,836
Increase (Decrease) in Temporary Equity [Roll Forward]
Balance as of September 30, 2012	53,681
Sale of additional shares to parent	(7,981)
Net income attributable to redeemable noncontrolling interest	1,438	0
Foreign currency translation adjustment attributable to noncontrolling interests	(651)
Balance as of December 31, 2012	$ 49,323

Carrying amount, attributable to parent and noncontrolling interests, of an entity's issued and outstanding stock which is not included within permanent equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer.

No definition available.

Name:	us-gaap_TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant