Quarterly report pursuant to Section 13 or 15(d)

Equity and Long-Term Incentive Compensation Plans (Fair Value Assumptions) (Details)

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Equity and Long-Term Incentive Compensation Plans (Fair Value Assumptions) (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended 6 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2012
Dec. 31, 2011
Jun. 30, 2013
Total cash received from employees for the issuance of shares under the ESPP $ 20,139 $ 19,195 $ 20,139 $ 19,195
Number of shares purchased by employees through the ESPP 496,000 545,000 496,000 545,000
ESPP maximum employee subscription rate 10.00% 10.00%
Share-based compensation arrangement, discount from market price, lesser of commencement of offering period or purchase date 85.00%
ESPP maximum annual share replenishment 2,000,000
Number of ESPP shares available for future issuance 2,100,000 2,100,000
基于股份的薪酬安排,公允价值ssumptions and Methodology [Abstract]
Expected stock price volatility 30.20% 32.70% 30.20% 32.70%
Risk-free interest rate 0.10% 0.10% 0.10% 0.10%
Dividend yield 3.30% 3.40% 3.30% 3.40%
Expected life of options 6 months 6 months 6 months 6 months
Employee Stock Purchase Plan Additional Information [Abstract]
Tax benefits realized by the Company in connection with the disqualifying dispositions of shares purchased under the ESPP $ 68 $ 368 $ 674 $ 843
Weighted-average fair value per share based on Black-Scholes model $ 10.54 $ 9.16 $ 10.54 $ 9.16
Baidu