Summary of Nonvested Stock Options (Detail) (USD $)
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12 Months Ended |
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Dec. 31, 2014
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
Non-vested at January 1, 2014 | 1,357,654us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares |
Granted | 935,368us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross |
Vested | (721,385)us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares |
Forfeited | (526,475)us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares |
Non-vested at December 31, 2014 | 1,045,162us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares |
Weighted Average Grant-Date Fair Value Per Share | |
Non-vested at January 1, 2014 | $ 4.04us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue |
Granted | $ 3.85us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue |
Vested | $ 4.75us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue |
Forfeited | $ 3.82us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue |
Non-vested at December 31, 2014 | $ 3.50us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue |
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- Details
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- Definition
Gross number of share options (or share units) granted during the period. No definition available.
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- Definition
The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Number of non-vested options outstanding. No definition available.
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- Definition
Number of non-vested options forfeited. No definition available.
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- Definition
Weighted average grant-date fair value of non-vested options forfeited. No definition available.
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- Definition
Weighted average grant-date fair value of non-vested options outstanding. No definition available.
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- Details
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- Definition
Number of options vested. No definition available.
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- Definition
Weighted average grant-date fair value of options vested. No definition available.
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