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Commitments and Contingencies - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014
Contingencies And Commitments [Line Items]
Material Reserves For Litigation	$ 0
Purchase price of receivable portfolios	1,000,000,000
Purchase price	127,000,000
Purchase commitments in past one year	$ 0

Minimum amount to be expended to satisfy the terms of arrangements in which the entity has agreed to expend funds to procure goods or services, excluding long-term purchase commitments or unconditional purchase obligations.

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