Stock Based Compensation (Tables) - Stock Options [Member] |
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Jun. 30, 2015 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Summary of Stock Options granted, exercised, expired, forfeited and canceled outstanding | A summary of stock options granted, exercised, expired and forfeited under our stock incentive plans and stock options outstanding as of, and changes made during, the six months ended June 30, 2015, is presented below (shares in thousands):
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Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs | Stock-based compensation expense related to stock options is allocated as follows for the three and six months ended June 30, 2015 and 2014 (in thousands):
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