FAIR VALUE - Maturities of Short-Term Investments (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 28, 2012	Dec. 31, 2011
Short-term investments:
Less than one year	$ 69,995	$ 43,470
Due in 1-2 years	18,752	27,384
Total short-term investments	$ 88,747	$ 70,854

Amount of debt securities categorized neither as held-to-maturity nor trading.

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