v2.4.0.8
Stock-Based Compensation (Details 2) (Stock options, USD $)
 12 Months Ended
Dec. 31, 2013
Exercise prices for stock options outstanding and exercisable:  
Number of stock options outstanding (in shares) 6,271,058
Outstanding, Weighted-Average Remaining Contractual Term 6 years
Outstanding, Weighted-Average Exercise Price (in dollars per share) $ 30.43
Number of stock options exercisable (in shares) 2,712,891
Exercisable, Weighted-Average Remaining Contractual Term 6 years
Exercisable, Weighted-Average Exercise Price (in dollars per share) $ 28.69
Range of Exercise Prices $00.00 - $10.00
  
Exercise prices for stock options outstanding and exercisable:  
Exercise prices, outstanding stock option awards, low end of range (in dollars per share) $ 0.00
Exercise prices, outstanding stock option awards, high end of range (in dollars per share) $ 10.00
Number of stock options outstanding (in shares) 2,653
Outstanding, Weighted-Average Remaining Contractual Term 2 years
Outstanding, Weighted-Average Exercise Price (in dollars per share) $ 1.98
Number of stock options exercisable (in shares) 2,653
Exercisable, Weighted-Average Remaining Contractual Term 2 years
Exercisable, Weighted-Average Exercise Price (in dollars per share) $ 1.98
Range of Exercise Prices $10.01 - $15.00
  
Exercise prices for stock options outstanding and exercisable:  
Exercise prices, outstanding stock option awards, low end of range (in dollars per share) $ 10.01
Exercise prices, outstanding stock option awards, high end of range (in dollars per share) $ 15.00
Number of stock options outstanding (in shares) 232,579
Outstanding, Weighted-Average Remaining Contractual Term 5 years
Outstanding, Weighted-Average Exercise Price (in dollars per share) $ 14.83
Number of stock options exercisable (in shares) 80,179
Exercisable, Weighted-Average Remaining Contractual Term 5 years
Exercisable, Weighted-Average Exercise Price (in dollars per share) $ 14.83
Range of Exercise Prices $15.01 - $20.00
  
Exercise prices for stock options outstanding and exercisable:  
Exercise prices, outstanding stock option awards, low end of range (in dollars per share) $ 15.01
Exercise prices, outstanding stock option awards, high end of range (in dollars per share) $ 20.00
Number of stock options outstanding (in shares) 464,216
Outstanding, Weighted-Average Remaining Contractual Term 6 years
Outstanding, Weighted-Average Exercise Price (in dollars per share) $ 18.95
Number of stock options exercisable (in shares) 163,616
Exercisable, Weighted-Average Remaining Contractual Term 6 years
Exercisable, Weighted-Average Exercise Price (in dollars per share) $ 18.95
Range of Exercise Prices $20.01 - $25.00
  
Exercise prices for stock options outstanding and exercisable:  
Exercise prices, outstanding stock option awards, low end of range (in dollars per share) $ 20.01
Exercise prices, outstanding stock option awards, high end of range (in dollars per share) $ 25.00
Number of stock options outstanding (in shares) 1,310,457
Outstanding, Weighted-Average Remaining Contractual Term 4 years
Outstanding, Weighted-Average Exercise Price (in dollars per share) $ 22.53
Number of stock options exercisable (in shares) 632,257
Exercisable, Weighted-Average Remaining Contractual Term 5 years
Exercisable, Weighted-Average Exercise Price (in dollars per share) $ 21.65
Range of Exercise Prices $25.01 - $30.00
  
Exercise prices for stock options outstanding and exercisable:  
Exercise prices, outstanding stock option awards, low end of range (in dollars per share) $ 25.01
Exercise prices, outstanding stock option awards, high end of range (in dollars per share) $ 30.00
Number of stock options outstanding (in shares) 1,154,906
Outstanding, Weighted-Average Remaining Contractual Term 5 years
Outstanding, Weighted-Average Exercise Price (in dollars per share) $ 28.60
Number of stock options exercisable (in shares) 917,406
Exercisable, Weighted-Average Remaining Contractual Term 4 years
Exercisable, Weighted-Average Exercise Price (in dollars per share) $ 28.72
Range of Exercise Prices $30.01 - $35.00
  
Exercise prices for stock options outstanding and exercisable:  
Exercise prices, outstanding stock option awards, low end of range (in dollars per share) $ 30.01
Exercise prices, outstanding stock option awards, high end of range (in dollars per share) $ 35.00
Number of stock options outstanding (in shares) 431,101
Outstanding, Weighted-Average Remaining Contractual Term 8 years
Outstanding, Weighted-Average Exercise Price (in dollars per share) $ 33.99
Number of stock options exercisable (in shares) 307,001
Exercisable, Weighted-Average Remaining Contractual Term 8 years
Exercisable, Weighted-Average Exercise Price (in dollars per share) $ 33.97
Range of Exercise Prices $35.01 - $40.00
  
Exercise prices for stock options outstanding and exercisable:  
Exercise prices, outstanding stock option awards, low end of range (in dollars per share) $ 35.01
Exercise prices, outstanding stock option awards, high end of range (in dollars per share) $ 40.00
Number of stock options outstanding (in shares) 2,660,146
Outstanding, Weighted-Average Remaining Contractual Term 8 years
Outstanding, Weighted-Average Exercise Price (in dollars per share) $ 37.85
Number of stock options exercisable (in shares) 609,779
Exercisable, Weighted-Average Remaining Contractual Term 8 years
Exercisable, Weighted-Average Exercise Price (in dollars per share) $ 37.84
Range of Exercise Prices $40.00 and above
  
Exercise prices for stock options outstanding and exercisable:  
Exercise prices, outstanding stock option awards, low end of range (in dollars per share) $ 40.00
Number of stock options outstanding (in shares) 15,000
Outstanding, Weighted-Average Remaining Contractual Term 10 years
Outstanding, Weighted-Average Exercise Price (in dollars per share) $ 47.19
Exercisable, Weighted-Average Remaining Contractual Term 0 years
Exercisable, Weighted-Average Exercise Price (in dollars per share) $ 0.00