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Short-Term Investments (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Schedule of Investments [Line Items]
Investments in mutual funds at fair value	$ 149,828	$ 60,546	$ 25,027
Term deposits with banks	340,349	266,107	190,771
Total	$ 490,177	$ 326,653

- Definition

Other investments not otherwise specified in the taxonomy that will be realized in a short period of time, usually less than one year or the normal operating cycle, whichever is longer.

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