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Shareholders' Equity - Summary of Stock Options Outstanding and Exercisable (Details)
shares in Thousands
12 Months Ended
Dec. 31, 2020
$ / shares
shares
$12.52 - $19.24  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices, Low End $ 12.52
Range of Exercise Prices, Upper End $ 19.24
Number Outstanding (in thousands) | shares 113
Weighted Average Remaining Contractual Life (in years) 2 years 7 months 17 days
Weighted Average Exercise Price per Share $ 18.06
Number Exercisable (in thousands) | shares 113
Weighted Average Exercise Price per Share $ 18.06
$19.34 - $19.73  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices, Low End 19.34
Range of Exercise Prices, Upper End $ 19.73
Number Outstanding (in thousands) | shares 79
Weighted Average Remaining Contractual Life (in years) 2 years 6 months 21 days
Weighted Average Exercise Price per Share $ 19.53
Number Exercisable (in thousands) | shares 79
Weighted Average Exercise Price per Share $ 19.53
$20.21 - $21.30  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices, Low End 20.21
Range of Exercise Prices, Upper End $ 21.30
Number Outstanding (in thousands) | shares 82
Weighted Average Remaining Contractual Life (in years) 2 years 10 months 2 days
Weighted Average Exercise Price per Share $ 20.68
Number Exercisable (in thousands) | shares 82
Weighted Average Exercise Price per Share $ 20.67
$22.19 - $22.24  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices, Low End 22.19
Range of Exercise Prices, Upper End $ 22.24
Number Outstanding (in thousands) | shares 15
Weighted Average Remaining Contractual Life (in years) 3 years 3 months 18 days
Weighted Average Exercise Price per Share $ 22.19
Number Exercisable (in thousands) | shares 15
Weighted Average Exercise Price per Share $ 22.19
$22.45 - $22.45  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices, Low End 22.45
Range of Exercise Prices, Upper End $ 22.45
Number Outstanding (in thousands) | shares 70
Weighted Average Remaining Contractual Life (in years) 6 years 9 months 14 days
Weighted Average Exercise Price per Share $ 22.45
Number Exercisable (in thousands) | shares 53
Weighted Average Exercise Price per Share $ 22.45
$22.52 - $38.65  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices, Low End 22.52
Range of Exercise Prices, Upper End $ 38.65
Number Outstanding (in thousands) | shares 96
Weighted Average Remaining Contractual Life (in years) 3 years 9 months 29 days
Weighted Average Exercise Price per Share $ 32.48
Number Exercisable (in thousands) | shares 96
Weighted Average Exercise Price per Share $ 32.48
$43.54 - $43.63  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices, Low End 43.54
Range of Exercise Prices, Upper End $ 43.63
Number Outstanding (in thousands) | shares 6
Weighted Average Remaining Contractual Life (in years) 6 months 25 days
Weighted Average Exercise Price per Share $ 43.56
Number Exercisable (in thousands) | shares 6
Weighted Average Exercise Price per Share $ 43.56
$43.77 - $43.77  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices, Low End 43.77
Range of Exercise Prices, Upper End $ 43.77
Number Outstanding (in thousands) | shares 108
Weighted Average Remaining Contractual Life (in years) 1 month 17 days
Weighted Average Exercise Price per Share $ 43.77
Number Exercisable (in thousands) | shares 108
Weighted Average Exercise Price per Share $ 43.77
$45.90 - $54.60  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices, Low End 45.90
Range of Exercise Prices, Upper End $ 54.60
Number Outstanding (in thousands) | shares 45
Weighted Average Remaining Contractual Life (in years) 8 months 23 days
Weighted Average Exercise Price per Share $ 51.35
Number Exercisable (in thousands) | shares 45
Weighted Average Exercise Price per Share $ 51.35
$54.69 - $54.69  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices, Low End 54.69
Range of Exercise Prices, Upper End $ 54.69
Number Outstanding (in thousands) | shares 23
Weighted Average Remaining Contractual Life (in years) 1 year 1 month 28 days
Weighted Average Exercise Price per Share $ 54.69
Number Exercisable (in thousands) | shares 23
Weighted Average Exercise Price per Share $ 54.69
$12.52 - $54.69  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices, Low End 12.52
Range of Exercise Prices, Upper End $ 54.69
Number Outstanding (in thousands) | shares 637
Weighted Average Remaining Contractual Life (in years) 2 years 8 months 1 day
Weighted Average Exercise Price per Share $ 29.59
Number Exercisable (in thousands) | shares 620
Weighted Average Exercise Price per Share $ 29.80