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Stock-Based Compensation - Stock Appreciation Rights (Details) - Stock Appreciation Rights SARS
$ / shares in Units, shares in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2021
USD ($)
$ / shares
shares
Number of Rights  
OUTSTANDING beginning balance (shares) | shares 1,383
Shares granted (shares) | shares 188
Exercised (shares) | shares (636)
Forfeited (shares) | shares (26)
Canceled (shares) | shares (2)
OUTSTANDING ending balance (shares) | shares 907
EXERCISABLE (shares) | shares 540
Weighted Average Exercise Price (USD per share)  
OUTSTANDING beginning balance (USD per share) | $ / shares $ 119.37
Granted (USD per share) | $ / shares 163.89
Exercised (USD per share) | $ / shares 112.50
Forfeited (USD per share) | $ / shares 141.69
Canceled (USD per share) | $ / shares 110.15
OUTSTANDING AT ending balance (USD per Share) | $ / shares 132.78
EXCERCISABLE (USD per share) | $ / shares $ 118.30
Weighted average remaining contractual term, outstanding 7 years 1 month 6 days
Weighted average remaining contractual term, exercisable 6 years
Aggregate intrinsic value, outstanding | $ $ 68,458
Aggregate intrinsic value, exercisable | $ $ 48,567