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Stock-Based Compensation - Stock Option Activity (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Stock options        
Additional disclosures        
Fair value of stock options vested $ 10,300 $ 20,300 $ 33,900  
2001 Stock Plan, 2011 Stock Plan and 2015 Stock Plan        
Number of Shares Underlying Options        
Outstanding at beginning of period (in shares) 5,984 6,583 6,307  
Granted (in shares) 50 880 186  
Replacement Awards (in shares)     803  
Adjustments to certain prior year grants (in shares) (47)      
Exercised (in shares) (1,303) (1,403) (696)  
Canceled/forfeited/expired (in shares) (142) (76) (17)  
Outstanding at end of period (in shares) 4,542 5,984 6,583 6,307
Vested and expected to vest at end of period (in shares) 5,316      
Exercisable at end of period (in shares) 3,942      
Weighted Average Exercise Price        
Outstanding at beginning of period (in dollars per share) $ 27.59 $ 23.91 $ 21.36  
Granted (in dollars per share) 60.74 38.15 68.10  
Adjustments to certain prior year grants (in dollars per share) 33.38      
Replacement Awards (in dollars per share)     13.64  
Exercised (in dollars per share) 20.07 14.42 21.53  
Canceled/forfeited/expired (in dollars per share) 52.15 42.13 42.75  
Outstanding at end of period (in dollars per share) 29.30 $ 27.59 $ 23.91 $ 21.36
Vested and expected to vest at end of period (in dollars per share) 22.92      
Exercisable at end of period (in dollars per share) $ 27.39      
Additional disclosures        
Weighted Average Remaining Contractual Life 5 years 5 years 8 months 12 days 6 years 1 month 6 days 7 years 3 months 18 days
Weighted Average Remaining Contractual Life, Vested and expected to vest at end of period 3 years 9 months 18 days      
Weighted Average Remaining Contractual Life, Exercisable at end of period 4 years 6 months      
Aggregate Intrinsic Value for outstanding options $ 74,039 $ 285,366 $ 204,062 $ 69,555
Exercised, Aggregate Intrinsic Value 68,162 $ 50,093 $ 33,132  
Vested and expected to vest, Aggregate Intrinsic Value 119,428      
Exercisable, Aggregate Intrinsic Value $ 70,336      
Vesting based on performance | 2001 Stock Plan, 2011 Stock Plan and 2015 Stock Plan        
Number of Shares Underlying Options        
Vested and expected to vest at end of period (in shares) 276