根据第13和15（d）条的年度报告

注意8.基于股票的补偿Fair Value Assumptions and ESPP (Details)

v2.3.0.11
注意8.基于股票的补偿Fair Value Assumptions and ESPP (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
6Months Ended 12 Months Ended
Jun. 30, 2010
Dec. 31, 2009
Dec. 31, 2008
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2009
ESPP, Maximum Employee Subscription Rate 10.00%
ESPP，在几个月内提供期限 24 6 6
ESPP, Discounted Purchase Price Percentage 85.00% 95.00％ 85.00%
ESPP, Discount from Market Price, Offering Date 15.00% 5.00% 15.00%
ESPP活动[摘要]
Total Cash Received from Employees for the Issuance of Shares Under the ESPP $ 30,085 $ 20,714 $ 30,306
员工通过ESPP购买的股票数量 1,123,000 758,000 1,615,000
Tax Benefits Realized in Connection with the disqualifying Dispositions of Shares Purchased under the ESPP $ 2,194 $ 994 $ 1,612
Weighted Average Fair Value Per Share Based on Black-Scholes Model $ 7.41 $ 8.51 $ 11.06
Number of ESPP Shares Available for Future Issuance 3,500,000
ESPP Share Replenishment in Period 2,000,000 2,000,000 2,000,000 2,000,000
ESPP Maximum Annual Share Replenishment 2,000,000
员工股票购买计划成员[会员]
ESPP, Fair Value Assumptions and Methodology [Abstract]
Expected stock price volatility 38.00% 35.00％ 41.00％
Risk free interest rate 0.20％ 0.20％ 1.80％
股息产量 3.10% 1.60% 1.40%
Expected life of options (in years) 0.5 0.5 1.3
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