STOCK-BASED COMPENSATION (Tables)
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Dec. 31, 2012
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Share-based Compensation [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Restricted Stock Units Outstanding, Including Reinvested Dividends |
As of December 31, 2012, we had the following Restricted Units outstanding, including reinvested dividends:
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Options to Purchase Shares of Class A Common Stock Issued and Outstanding |
The following is an analysis of options to purchase shares of class A common stock issued and outstanding:
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Fair Value of Employee Stock Options Granted as Determined by Black-Scholes Valuation Model Assumptions |
The fair value of each option grant is estimated using the Black-Scholes option pricing model. The weighted average assumptions used, by year, and the calculated weighted average fair values of options, are as follows:
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Summarized Information about Stock Options Outstanding and Exercisable |
The following table summarizes information about stock options outstanding and exercisable at December 31, 2012:
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- Definition
Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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