Quarterly report pursuant to Section 13 or 15(d)

Equity and Long-Term Incentive Compensation Plans - Stock Options Activities (Details)

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Equity and Long-Term Incentive Compensation Plans - Stock Options Activities (Details) - USD ($)
$ in Thousands
3 Months Ended
Sep. 30, 2015
Dec. 31, 2014
Sep. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]      
Adjustments in period   4,245  
Options Exercised [Abstract]      
Total intrinsic value of options exercised $ 0   $ 3,478
Total cash received from employees and non-employee Board members as a result of stock option exercises 0   4,677
Tax benefits realized by the Company in connection with these exercises $ 0   $ 1,617