Acquisitions - Additional Information (Detail) - NetSpend Holdings Inc - Software And License	1 Months Ended
Sep. 30, 2015 USD ($)
Business Acquisition [Line Items]
Business combination, assets purchased	$ 750,000
Intangible asset amortization period	5 years

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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-Name Accounting Standards Codification

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-Publisher FASB

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