Summary of Significant Accounting Policies (Details)	6 Months Ended
Mar. 31, 2015
Accounting Policies [Abstract]
Ownership interests in certain subsidiaries under equity method investment, maximum	100.00%
Voting rights in investment businesses not traded publicly accounted for under the cost method, Maximum	20.00%

Voting rights in investment businesses not traded publicly accounted for under the cost method, Maximum

No definition available.

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration