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Financial Instruments and Risk - Additional Information (Detail)
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12 Months Ended | |
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Dec. 31, 2013
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Dec. 31, 2012
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| Financial Instruments And Risk Textual [Abstract] | ||
| Maturity period of securities | One year or less | |
| Average days to maturity of Company's portfolio of cash equivalents and marketable securities | 50 days | 121 days |
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- Definition
Average period to maturity for portfolio of cash and marketable securities. No definition available.
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- Details
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- Definition
Maturity period description. No definition available.
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