Share-Based Compensation
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Dec. 31, 2011
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Share-Based Compensation [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Share-Based Compensation |
The Company maintains two share-based compensation plans for executives, non-employee directors, and certain key employees which authorize the granting of stock options, unvested shares, unvested share units, and other types of awards consistent with the purpose of the plans. The number of shares authorized for issuance under the Company's plans as of December 31, 2011 totals 10.6 million, of which 4.1 million shares were available for future issuance. Stock options granted under these plans are generally non-qualified, and are granted with an exercise price equal to the market price of the Company's stock at the date of grant. The majority of the options issued to employees become exercisable in four equal installments, beginning one year from the date of grant, and generally expire 10 years from the date of grant. Stock options granted to non-employee directors cliff vest after one year. Unvested share and unvested share unit awards generally cliff vest after three years for employees and non-employee directors. The Company issued 341,876, 264,915 and 273,000 of unvested shares as compensation to key employees in 2011, 2010 and 2009, respectively. All unvested shares carry dividend and voting rights, and the sale of the shares is restricted prior to the date of vesting.
The Company accounts for share-based payments in accordance with ASC 718. Accordingly, the Company expenses the fair value of awards made under its share-based plans. That cost is recognized in the consolidated financial statements over the requisite service period of the grants. Weighted average option fair values and assumptions for the period specified are disclosed in the following table:
The assumptions are as follows:
The Company's policy is to recognize compensation cost on a straight-line basis over the requisite service period for the entire award. Additionally, the Company's general policy is to issue new shares of common stock to satisfy stock option exercises or grants of unvested shares. Total compensation cost for stock options is as follows:
Total compensation cost for unvested shares is as follows:
Recognition of compensation cost was consistent with recognition of cash compensation for the same employees. Compensation cost capitalized as part of inventory was immaterial. As of December 31, 2011, there was $8.3 million and $9.0 million of total unrecognized compensation cost related to stock options and unvested shares, respectively, that is expected to be recognized over a weighted-average period of 1.4 years and 1.1 years, respectively. A summary of the Company's stock option activity as of December 31, 2011, and changes during the year ended December 31, 2011 is presented in the following table:
The intrinsic value for stock options outstanding and exercisable is defined as the difference between the market value of the Company's common stock as of the end of the period, and the grant price. The total intrinsic value of options exercised in 2011, 2010 and 2009, was $21.9 million, $14.4 million and $5.3 million, respectively. In 2011, 2010 and 2009, cash received from options exercised was $33.1 million, $18.1 million and $7.7 million, respectively, while the actual tax benefit realized for the tax deductions from stock options exercised totaled $8.0 million, $5.2 million and $1.9 million, respectively. A summary of the Company's unvested share activity as of December 31, 2011, and changes during the year ending December 31, 2011 is presented in the following table:
Unvested share grants accrue dividends and their fair value is equal to the market price of the Company's stock at the date of the grant. |