Stock-Based Compensation Plans (Tables)
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3 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Mar. 31, 2014
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Disclosure of Compensation Related Costs, Share-based Payments [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] | The following table summarizes the Company’s stock option activity for the three month period ended March 31, 2014:
* The aggregate intrinsic value of outstanding and exercisable stock options is defined as the difference between the closing price of the Company's stock on March 31, 2014, the last trading day of the quarter, of $27.02 and the exercise price multiplied by the number of in-the-money outstanding and exercisable stock options. |
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Schedule of Cash Proceeds Received from Share-based Payment Awards [Table Text Block] | The following table summarizes the Company’s stock option activity for the three months ended March 31, 2014 and 2013:
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Schedule of Nonvested Restricted Stock Units Activity [Table Text Block] | The following table summarizes the Company’s restricted stock award activity for three month period ended March 31, 2014:
* The aggregate intrinsic value of non-vested restricted stock was calculated using the closing price of the Company's stock on March 31, 2014, the last trading day of the quarter, of $27.02 multiplied by the number of non-vested restricted shares outstanding. |