XML 25 R73.htm IDEA: XBRL DOCUMENT v2.4.0.6
Stock-Based Compensation Plans - Additional Information (Detail) (USD $)
 1 Months Ended 12 Months Ended 3 Months Ended 12 Months Ended 3 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended
Jul. 24, 2007
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2011
2009 Grant
Dec. 31, 2009
2009 Grant
Dec. 31, 2011
2010 Grant
Dec. 31, 2010
2010 Grant
Dec. 31, 2012
2011 Grant
Dec. 31, 2011
2012 Grant
Dec. 31, 2005
2005 Stock Incentive Plan
Jun. 14, 2012
2005 Stock Incentive Plan
Jul. 24, 2007
2005 Stock Incentive Plan
Dec. 31, 2012
Employee Stock Purchase Plan 1999
Dec. 31, 2011
Employee Stock Purchase Plan 1999
Dec. 31, 2010
Employee Stock Purchase Plan 1999
Dec. 31, 2012
Restricted share awards (RSAs)
Dec. 31, 2011
Restricted share awards (RSAs)
Dec. 31, 2010
Restricted share awards (RSAs)
Dec. 31, 2009
Restricted share awards (RSAs)
Dec. 31, 2012
Restricted share awards (RSAs)
Minimum
Dec. 31, 2012
Restricted share awards (RSAs)
Maximum
Dec. 31, 2012
Restricted share awards (RSAs)
S1 Corporation
Dec. 31, 2012
2002 Non-Employee Director Stock Option Plan
Dec. 31, 2012
1999 Stock Option Plan
Dec. 31, 2012
1999 Stock Option Plan
Minimum
Dec. 31, 2012
1999 Stock Option Plan
Maximum
Dec. 31, 2012
1996 Stock Option Plan
Dec. 31, 2012
1994 Stock Option Plan
Dec. 31, 2012
LTIP Performance Shares
Dec. 31, 2011
LTIP Performance Shares
Dec. 31, 2010
LTIP Performance Shares
Dec. 31, 2012
LTIP Performance Shares
Minimum
Dec. 31, 2011
LTIP Performance Shares
Minimum
Dec. 31, 2010
LTIP Performance Shares
Minimum
Dec. 31, 2012
LTIP Performance Shares
Maximum
Dec. 31, 2011
LTIP Performance Shares
Maximum
Dec. 31, 2010
LTIP Performance Shares
Maximum
Dec. 31, 2012
S1 2003 Stock Incentive Plan
Dec. 31, 2012
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                                                                
Number of shares authorized                       7,750,000 5,000,000 1,500,000                   250,000 4,000,000     1,008,000 1,910,976                      
Permitted designation for purchase of common stock under ESPP                           Participating employees are permitted to designate up to the lesser of $25,000, or 10% of their annual base compensation, for the purchase of common stock under the ESPP. Purchases under the ESPP are made one calendar month after the end of each fiscal quarter.                                                    
Employee participating annual base compensation designated for purchase of common stock, amount                           $ 25,000                                                    
Employee participating annual base compensation designated for purchase of common stock, percent                           10.00%                                                    
Price of common stock purchased under ESPP, description                           The price for shares of common stock purchased under the ESPP is 85% of the stock's fair market value on the last business day of the three-month participation period.                                                    
Price of common stock purchased under ESPP, percent                           85.00%                                                    
Shares issued under ESPP   40,798 40,669 57,734                                                                        
Discount offered pursuant to ESPP, percentage                           15.00%                                                    
Stock-based compensation expense   15,186,000 11,254,000 7,790,000                   200,000 200,000 200,000                                                
Employee stock purchase plan, amended plan start date May 01, 2008                                                                              
Employee stock purchase plan, amended plan end date Apr. 30, 2018                                                                              
Employee stock purchase plan term 10 years                   10 years                                                          
Shares of common stock reserved for issuance prior to amendment                     3,000,000                                                          
Awards granted requisite service period                                 3 years 3 years 3 years 4 years 3 years 4 years 4 years                                  
Restricted share awards, vesting increments on anniversary dates of grants                                 33.00% 33.00% 33.00% 25.00% 25.00% 33.00% 25.00%                                  
Vesting percentage if employee is terminated without cause within 12 months from acquisition date                                             100.00%                                  
Stock option plan expiration date                                               2005-03 2009-02     2005-03 2005-03                      
Term of outstanding options   5 years 3 months 11 days                                           10 years 10 years     10 years 10 years                      
Stock option vesting period                                                   3 years 4 years 4 years 4 years                      
Incentive plan, percentage of options expected to vest over the vesting period   94.30%                                                                            
Incentive plan, weighted-average grant date fair value of stock options granted   $ 20.56 $ 14.00 $ 12.22                                                                        
Incentive plan, total intrinsic value of stock options exercised   17,300,000 6,700,000 1,900,000                                                                        
Dividend yield   0.00%                                                                            
Maximum attainment percentage that may be achieved for LTIP Performance Shares                                                           200.00% 200.00% 200.00%                
LTIP Performance Shares, Performance period                                                                 1 year 1 year 1 year 3 years 3 years 3 years    
Expected attainment level for the awards granted, percentage         200.00% 150.00% 175.00% 100.00% 100.00% 100.00%                                                            
Restricted shares awards, shares vested                                 79,299 86,325 95,014                                       100,685  
Restricted shares withheld to pay employees' portion of minimum payroll withholding taxes                                 23,813 25,495 30,304                                       38,167  
Unrecognized compensation costs                                 3,900,000                         16,400,000                   10,400,000
Unrecognized compensation costs, weighted-average recognition periods                                 2 years 8 months 12 days                         2 years 4 months 24 days                   2 years 4 months 24 days
Stock-based compensation expenses tax benefits   5,500,000 4,100,000 2,900,000                                                                        
Proceeds from exercises of stock options   16,730,000 4,478,000 3,147,000                                                                        
Actual tax benefit realized from tax deductions of option exercises   $ 6,300,000 $ 2,500,000 $ 700,000