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Stock-Based Option Grants
3 Months Ended
Mar. 31, 2012
Stock-Based Option Grants
J. Stock-Based Option Grants

On January 1, 2012, the Company granted options to purchase an aggregate of 18,600 shares of the Company’s Class A Common Stock with a weighted average fair value of $47.55 per share, of which an option for 7,500 shares was a special long-term retention stock option granted to a key employee. The special long-term retention stock option is service-based with 60% of the shares vesting on January 1, 2017 and the remaining shares vesting annually in equal tranches over the following four years.

On February 27, 2012, the Company granted an additional option to purchase 24,000 shares of the Company’s Class A Common Stock with a weighted average fair value of $41.64 per share. The option is a service-based stock option and vests annually at approximately 33% per year starting on the third anniversary of the grant date.