Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Details 3)

v2.4.0.8
Stock-Based Compensation (Details 3) (Employee and Other Stock Option [Member], USD $)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended
Jun. 30, 2014
Mar. 31, 2014
Options    
Outstanding at the beginning of the period (in shares) 4,693,465 4,637,471
Granted (in shares)   155,753
Exercised (in shares) (95,352) (95,609)
Forfeited (in shares) (3,300) (4,150)
Outstanding at the end of the period (in shares) 4,594,813 4,693,465
Options exercisable (in shares) 3,748,286  
Weighted-Average Exercise Price    
Outstanding at the beginning of the period (in dollars per share) $ 10.13 $ 9.04
Granted (in dollars per share)   $ 41.84
Exercised (in dollars per share) $ 8.14 $ 8.77
Forfeited (in dollars per share) $ 7.80 $ 9.00
Outstanding at the end of the period (in dollars per share) $ 10.17 $ 10.13
Options exercisable (in dollars per share) $ 8.73  
Weighted-Average Remaining Contractual Life    
Outstanding 5 years 5 years 3 months 18 days
Options exercisable 4 years 6 months  
Aggregate Intrinsic Value    
Outstanding (in dollars) $ 178,031 $ 141,293
Options exercisable (in dollars) $ 150,653  
Minimum [Member]
    
Additional disclosures    
Exercise prices of stock options outstanding (in dollars per share) $ 0.11  
Maximum [Member]
    
Additional disclosures    
Exercise prices of stock options outstanding (in dollars per share) $ 41.84