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Shareholders' Equity and Share-Based Compensation - Stock Option Information by Ranges of Exercise Prices (Details) - $ / shares | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Summary of options outstanding segregated by ranges of exercise prices |  |  |
Total Outstanding Options, Options (in shares) | 916,287 | 908,557 | 774,821
Total Outstanding Options, Weighted Average Option Price per Share (in usd per share) | $ 38.99 | $ 37.82 |
Total Outstanding Options, Weighted Average Remaining Term | 7 years 1 month 24 days |  |
Vested and Exercisable Options (in shares) | 437,197 | 368,700 |
Vested and Exercisable Options, Weighted Average Option Price per Share (in usd per share) | $ 36.59 | $ 34.81 | $ 31.42
Vested and Exercisable Options, Weighted Average Remaining Term | 5 years 10 months 9 days |  |
Range One |  |  |
Summary of options outstanding segregated by ranges of exercise prices |  |  |
Total Outstanding Options, Options (in shares) | 203,207 |  |
Total Outstanding Options, Weighted Average Option Price per Share (in usd per share) | $ 30.84 |  |
Total Outstanding Options, Weighted Average Remaining Term | 4 years 7 months 9 days |  |
Vested and Exercisable Options (in shares) | 203,207 |  |
Vested and Exercisable Options, Weighted Average Option Price per Share (in usd per share) | $ 30.84 |  |
Vested and Exercisable Options, Weighted Average Remaining Term | 4 years 7 months 9 days |  |
Range One | Minimum |  |  |
Summary of options outstanding segregated by ranges of exercise prices |  |  |
Total Outstanding Options, Weighted Average Option Price per Share (in usd per share) | $ 28.88 |  |
Range One | Maximum |  |  |
Summary of options outstanding segregated by ranges of exercise prices |  |  |
Total Outstanding Options, Weighted Average Option Price per Share (in usd per share) | $ 33.41 |  |
Range Two |  |  |
Summary of options outstanding segregated by ranges of exercise prices |  |  |
Total Outstanding Options, Options (in shares) | 546,108 |  |
Total Outstanding Options, Weighted Average Option Price per Share (in usd per share) | $ 40.81 |  |
Total Outstanding Options, Weighted Average Remaining Term | 8 years 18 days |  |
Vested and Exercisable Options (in shares) | 154,902 |  |
Vested and Exercisable Options, Weighted Average Option Price per Share (in usd per share) | $ 40.90 |  |
Vested and Exercisable Options, Weighted Average Remaining Term | 6 years 9 months 21 days |  |
Range Two | Minimum |  |  |
Summary of options outstanding segregated by ranges of exercise prices |  |  |
Total Outstanding Options, Weighted Average Option Price per Share (in usd per share) | $ 36.04 |  |
Range Two | Maximum |  |  |
Summary of options outstanding segregated by ranges of exercise prices |  |  |
Total Outstanding Options, Weighted Average Option Price per Share (in usd per share) | $ 41.95 |  |
Range Three |  |  |
Summary of options outstanding segregated by ranges of exercise prices |  |  |
Total Outstanding Options, Options (in shares) | 166,972 |  |
Total Outstanding Options, Weighted Average Option Price per Share (in usd per share) | $ 42.93 |  |
Total Outstanding Options, Weighted Average Remaining Term | 7 years 3 months 29 days |  |
Vested and Exercisable Options (in shares) | 79,088 |  |
Vested and Exercisable Options, Weighted Average Option Price per Share (in usd per share) | $ 42.94 |  |
Vested and Exercisable Options, Weighted Average Remaining Term | 7 years 3 months 3 days |  |
Range Three | Minimum |  |  |
Summary of options outstanding segregated by ranges of exercise prices |  |  |
Total Outstanding Options, Weighted Average Option Price per Share (in usd per share) | $ 42.73 |  |
Range Three | Maximum |  |  |
Summary of options outstanding segregated by ranges of exercise prices |  |  |
Total Outstanding Options, Weighted Average Option Price per Share (in usd per share) | $ 42.95 |  |

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