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Stock-Based Compensation (Fair Value Assumptions) (Details) (USD $) 除非另有说明 |
3 Months Ended | ||
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Sep. 30, 2011 |
Sep. 30, 2010 |
Jun. 30, 2011 |
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| ESPP最大员工订阅率 | 10.00% | ||
| 基于股票的薪酬安排，市场价格折扣，发行期或购买日期较少 | 85.00% | ||
| ESPP maximum annual share replenishment | 2.0 | ||
| ESPP share replenishment In period | 2.0 | ||
| Number of ESPP shares available for future issuance | 3.5 | ||
| ESPP祭期间,几个月 | 6 | ||
| Share-based Compensation Arrangement, Fair Value Assumptions and Methodology [Abstract] | |||
| 预期股票价格波动 | 33.00% | 41.00％ | |
| 无风险利率 | 0.10% | 0.20% | |
| Dividend yield | 3.40% | 3.70％ | |
| Expected life of options (in years) | 0.50 | 0.50 | |
| Employee Stock Purchase Plan Additional Information [Abstract] | |||
| Tax benefits realized in connection with the disqualifying dispositions of shares purchased under the ESPP | $ 475 | $ 356 | |
| 加权平均平均公允价值基于黑色choles模型 | $ 9.16 | $ 6.53 | |
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- Definition
Employee Stock Purchase Plan Additional Information [Abstract]
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- Definition
Espp Maximum Annual Share Replenishment
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- Definition
ESPP在期间分享补给
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- Definition
Number Of Espp Shares Available For Future Issuance
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- Definition
Stock Based Compensation Offering Period In Months
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- Definition
ESPP实现的税收优惠
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- Definition
加权平均公允价值每股
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- Definition
参与者支付股票的发行日期的折现率。 Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
预计基于股权的奖励将是杰出的。基于股权的奖励的预期期限通常是根据工具的合同期限以及员工预期的行使和投票后就业终止行为的影响确定的。 Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
预计股价在一段时间内会波动的估计量度。波动率也可以定义为对平均值收益分散的概率加权度量。股价的波动性是指定期间连续复合回报率的标准偏差。这与股票价格自然对数差异的标准偏差以及在此期间的股息（如果有的话）相同。 Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The risk-free interest rate assumption that is used in valuing an option on its own shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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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