XML 86 R63.htm IDEA: XBRL DOCUMENT v2.4.0.8
Employee Stock and Benefit Plans (Equity Compensation Plans Narrative) (Details) (USD $)
Share data in Millions, except Per Share data, unless otherwise specified
9 Months Ended 12 Months Ended
Sep. 30, 2011
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock reserved for future issuance   2.4    
Capital shares reserved for future issuance   0.5    
Total stock-based compensation expense   $ 7,468,000 $ 8,123,000 $ 11,747,000
Total unrecognized compensation cost   $ 12,100,000    
Total unrecognized compensation cost, expected recognition period (in years)   3 years    
Cash dividend (in dollars per share) $ 1.00      
Stock Options
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period   4 years    
Stock Options | Minimum
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Expiration period   7 years    
Stock Options | Maximum
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Expiration period   10 years    
Restricted Stock | Minimum
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period   2 years    
Restricted Stock | Maximum
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period   4 years    
2005 Plan | Restricted Stock Unit
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Factor for increase   1.6