XML 118 R100.htm IDEA: XBRL DOCUMENT v3.6.0.2
Stockholders' Equity and Stock Incentive Plans (Stock Options) (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
May 17, 2012
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
May 16, 2012
Stock Options Activity [Roll Forward]          
Outstanding, beginning of period   4,605,055 7,169,668 9,143,910  
Granted   216,509 200,673 244,351  
Canceled   (1,260,750) (1,463,497) (1,656,359)  
Exercised   (452,898) (1,301,789) (562,234)  
Outstanding, end of period   3,107,916 4,605,055 7,169,668  
Exercisable   2,696,315 4,085,555    
Stock Options Activity, Weighted Average Option Price [Roll Forward]          
Outstanding, weighted average option price, beginning of period (in USD per share)   $ 26.14 $ 25.73 $ 26.62  
Granted, weighted average option price (in USD per share)   17.50 19.98 11.57  
Canceled, weighted average option price (in USD per share)   38.63 39.82 34.79  
Exercised, weighted average option price (in USD per share)   6.49 7.53 7.39  
Outstanding, weighted average option price, end of period (in USD per share)   23.36 26.14 $ 25.73  
Exercisable, weighted average option price (in USD per share)   $ 24.27 $ 27.65    
Additional Disclosures:          
Outstanding, weighted average remaining term   3 years 10 months 26 days      
Exercisable, weighted average remaining term   3 years 1 month 6 days 3 years 1 month 6 days    
Outstanding, aggregate intrinsic value   $ 15,739      
Exercisable, aggregate intrinsic value   14,587 $ 18,145    
Total intrinsic value of in-the-money options exercised during the period   5,900 11,100 $ 2,500  
Total fair value of options vested in period   2,000 $ 1,900 $ 2,300  
Stock Options          
Additional Disclosures:          
Total unrecognized share-based compensation costs related to unvested stock options   $ 1,400      
Total unrecognized share-based compensation costs related to unvested stock options, period for recognition   10 months 18 days      
Stock Incentive Plan 2012 [Member] | Stock Options          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Term of stock incentive plan 10 years        
Increase in number of common shares authorized under Stock Incentive Plan 4,000,000        
Number of common shares authorized for issuance under Stock Incentive Plan 21,000,000       17,000,000
Number of common shares available for grant under Stock Incentive Plan   2,900,000      
Number of authorized and unissued common shares under Stock Incentive Plan   9,000,000      
Award vesting period   3 years