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Stock-Based Compensation Plans - Employee Stock Purchase Plans - Additional Information (Detail)
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12 Months Ended |
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Dec. 31, 2013
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Payroll deductions maximum percentage to purchase shares on common stock on purchase dates | 15.00% |
| Maximum shares of common stock purchase during each purchase period | 1,250 |
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Employee Stock Purchase Plan [Member]
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Common stock reserved and available for issuance | 366,667 |
| Common stock available for future issuance authorized annual percentage increase | 1.00% |
| Length of purchase intervals | 6 months |
| ESPP offering period description | The offering periods generally start on the first trading day on or after May 15 and November 15 of each year. The first offering period is expected to begin on May 15, 2014. |
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- Definition
Employee Stock Purchase Plan Offering Period Description No definition available.
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- Definition
Maximum Number Of Common Stock Shares To Be Purchased No definition available.
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- Definition
Represents the length of purchase intervals. No definition available.
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- Definition
Percentage of available share increase in share reserve allowed under the 2013 Equity and 2013 ESPP plans, calculated as a percentage of outstanding shares. No definition available.
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- Definition
Aggregate number of common shares reserved for future issuance. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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