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Stock-Based Compensation
9 Months Ended
Sep. 30, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Stock-Based Compensation
13.
Stock-Based Compensation
Our stock-based compensation plans are described in Note 15 of the 2011 annual report on Form 10-K. During the three months ended September 30, 2012 and 2011 we recognized total Stock-Based Compensation Expense of $3,264 and $1,079, respectively. During the nine months ended September 30, 2012 and 2011 we recognized total Stock-Based Compensation Expense of $7,175 and $3,569, respectively. The total income tax benefit recognized in the income statement for share-based compensation arrangements during the nine months ended September 30, 2012 and 2011 was $1,213 and $801, respectively. During the first nine months of 2012 we granted 34,972 restricted shares. The weighted average grant date fair value of each share awarded was $43.07. Restricted share awards generally have a 3 year vesting period from the effective date of the grant. The total fair value of shares vested during the nine months ended September 30, 2012 and 2011 was $524 and $623, respectively.