Commitments, Contingencies and Guarantees - Additional Information (Detail)	Sep. 29, 2014 USD ($)
Commitments and Contingencies Disclosure [Abstract]
FDIC civil monetary penalties	$ 3,300,000
Maximum
Loss Contingencies [Line Items]
Contingency refund	$ 30,000,000

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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