Proportionate share of income (loss) from Evertec minority interest (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2012 E V E R T E C Inc [Member]	Mar. 31, 2010 E V E R T E C Inc [Member]
Related Party Transaction [Line Items]
Income Loss From Equity Method Investments	$ 2,252	$ 6,826	$ 1,730	$ 11,792
Intercompany Income (Loss) Eliminations			(13,345)	(13,713)
Income (Loss) From Equity Method Investments Net Of Intercompany Income (Loss) Eliminations			$ (11,615)	$ (1,921)

This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

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+ Details