Financial Income, Net (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Statement [Abstract]
Interest income	$ 2,824us-gaap_InvestmentIncomeInterest	$ 3,884us-gaap_InvestmentIncomeInterest	$ 4,507us-gaap_InvestmentIncomeInterest
Gain on available-for-sale marketable securities, net	6	379	184
Amortization of premium on available-for-sale marketable securities, net	(1,121)	(1,504)	(1,267)
Foreign exchange loss, net	(565)	(45)	(44)
Accretion of Contingent Consideration	(169)
Financial income, net	$ 975us-gaap_InvestmentIncomeNet	$ 2,714us-gaap_InvestmentIncomeNet	$ 3,380us-gaap_InvestmentIncomeNet

This item represents the difference between the gross realized gains and losses realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. Additionally, this item would include any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt and equity securities.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 9

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Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.

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-Publisher FASB

-Name Accounting Standards Codification

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Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.

+ References

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-Name Accounting Standards Codification

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Amount of amortization of purchase premium on nonoperating securities.

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Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.

+ References

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-Publisher SEC

-Name Regulation S-X (SX)

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Amount after accretion (amortization) of discount (premium), and investment expense, of interest income and dividend income on nonoperating securities.

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