Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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

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Fair value as of the balance sheet date of all foreign currency derivative assets designated as cash flow hedging instruments.

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Fair value as of the balance sheet date of all foreign currency derivative liabilities designated as cash flow hedging instruments.

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Fair value portion of asset contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward contracts, and swaps.

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Fair value portion of liability contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into.

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Investment in short-term money-market instruments (such as commercial paper, banker's acceptances, repurchase agreements, government securities, certificates of deposit, and so forth) which are highly liquid (that is, readily convertible to known amounts of cash) and so near their maturity that they present an insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify as cash equivalents by definition. Original maturity means an original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.

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The amount of other than temporary impairment (OTTI) losses on equity securities, OTTI related to credit losses on debt securities, and OTTI losses on debt securities when the entity intends to sell the securities or it is more likely than not that the entity will be required to sell the securities before recovery of its amortized cost basis. Additionally, this item includes OTTI losses recognized during the period on investments accounted for under the cost method of accounting.

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Fair Value Measurements - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Detail) (USD $)									6 Months Ended		6 Months Ended							6 Months Ended
	Jun. 29, 2014	Dec. 31, 2013	Jun. 29, 2014 Corporate Bonds	Jun. 29, 2014 Treasury Bills	Jun. 29, 2014 Asset-Backed Securities	Jun. 29, 2014 Sovereign Bonds	Jun. 29, 2014 Municipal Bonds	Jun. 29, 2014 Agency Bonds	Jun. 29, 2014 Fair Value, Measurements, Nonrecurring	Jun. 29, 2014 Quoted Prices in Active Markets for Identical Assets (Level 1) Fair Value, Measurements, Recurring	Jun. 29, 2014 Significant Other Observable Inputs (Level 2) Fair Value, Measurements, Recurring	Jun. 29, 2014 Significant Other Observable Inputs (Level 2) Fair Value, Measurements, Recurring Corporate Bonds	Jun. 29, 2014 Significant Other Observable Inputs (Level 2) Fair Value, Measurements, Recurring Treasury Bills	Jun. 29, 2014 Significant Other Observable Inputs (Level 2) Fair Value, Measurements, Recurring Asset-Backed Securities	Jun. 29, 2014 Significant Other Observable Inputs (Level 2) Fair Value, Measurements, Recurring Sovereign Bonds	Jun. 29, 2014 Significant Other Observable Inputs (Level 2) Fair Value, Measurements, Recurring Municipal Bonds	Jun. 29, 2014 Significant Other Observable Inputs (Level 2) Fair Value, Measurements, Recurring Agency Bonds	Jun. 29, 2014 Fair Value, Inputs, Level 3 Fair Value, Measurements, Nonrecurring
Assets:
Money market instruments	$ 1,358,000	$ 520,000								$ 1,358,000	$ 0
Financial assets at fair value	425,446,000		235,780,000	87,967,000	70,692,000	18,915,000	10,592,000	1,500,000				235,780,000	87,967,000	70,692,000	18,915,000	10,592,000	1,500,000
Assets, Cash flow hedge forward contracts											45,000
Assets, Economic hedge forward contracts											6,000
Liabilities:
Liabilities, Cash flow hedge forward contracts											127,000
Liabilities, Economic hedge forward contracts											27,000
Asset Impairment Charges									0
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net											$ 0							$ 0