Stock-Based Compensation - Narrative (Details) - Employee Stock Purchase Plan |
12 Months Ended |
|---|---|
|
Dec. 31, 2015
USD ($)
purchase_period
shares
| |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| ESPP offering period | 24 months |
| Number of purchase periods | purchase_period | 4 |
| Maximum percentage in payroll deductions to acquire shares of common stock | 15.00% |
| Maximum deductible fair market value of shares available for employee to purchase per calendar year | $ | $ 25,000 |
| Maximum number of shares available for employee to purchase per offering period (in shares) | shares | 10,000 |
| X | ||||||||||
- Definition Share based compensation arrangement by share based payment award maximum deductible fair market value of shares per calendar year. No definition available.
|
| X | ||||||||||
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Number of Purchase Periods No definition available.
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The highest quantity of shares an employee can purchase under the plan per period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|