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Share-based Payments (Narrative) (Details) | 1 Months Ended | 12 Months Ended
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Jun. 30, 2022 | Nov. 30, 2021 | Aug. 31, 2021 | Dec. 31, 2022 USD ($) item $ / shares shares | Dec. 31, 2021 USD ($) $ / shares shares | Dec. 31, 2020 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Maximum employee contribution, percentage |  |  |  | 4.00% |  |
Granted, Shares | shares |  |  |  |  | 63,971 | 312,193
Minimum [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Employer matching contribution, percentage |  |  |  | 50.00% |  |
Maximum [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Employer matching contribution, percentage |  |  |  | 100.00% |  |
Performance Share Unit Plans [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Market value of shares vested and released |  |  |  | $ 4,900,000 | $ 0 | $ 0
Stock Options [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Award term |  |  |  | 10 years |  |
Remaining shares authorized for grant | shares |  |  |  | 3,919,069 | 4,705,117 |
Award vesting period |  |  |  | 3 years |  |
Weighted average share price of options exercised | $ / shares |  |  |  | $ 64.82 | $ 61.40 | $ 51.92
Weighted average grant date fair value of options granted | $ / shares |  |  |  | $ 14.35 | $ 12.72 | $ 8.69
Stock options granted (in shares) | shares |  |  |  | 710,847 | 758,256 | 822,626
Unrecognized compensation costs |  |  |  | $ 7,100,000 |  |
Unrecognized compensation costs, period for recognition |  |  |  | 2 years |  |
Proceeds from exercise of employee stock options |  |  |  | $ 5,900,000 | $ 16,300,000 | $ 44,100,000
Actual tax benefit realized from option exercise |  |  |  | $ 400,000 | $ 1,800,000 | $ 4,600,000
Number of plans | item |  |  |  | 3 |  |
Premium Priced Stock Options [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Stock options granted (in shares) | shares |  |  |  | 119,157 | 1,017,064 |
Weighted average estimated grant date fair value | $ / shares |  |  |  | $ 8.00 | $ 8.59 |
Unrecognized compensation costs |  |  |  | $ 5,600,000 |  |
Unrecognized compensation costs, period for recognition |  |  |  | 1 year 10 months 24 days |  |
Performance Share Units [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Unrecognized compensation costs |  |  |  | $ 14,600,000 |  |
Unrecognized compensation costs, period for recognition |  |  |  | 1 year 9 months 18 days |  |
Performance Share Units With Market Conditions [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Weighted average grant date fair value of options granted | $ / shares |  |  |  | $ 69.92 |  |
Performance period | 2 years | 3 years | 3 years |  |  |
Award holding period |  |  |  | 1 year |  |
Discount value | $ / shares |  |  |  | $ 5.34 |  |
Effective tax rate |  |  |  | 35.00% |  |
Unrecognized compensation costs |  |  |  | $ 3,900,000 |  |
Unrecognized compensation costs, period for recognition |  |  |  | 1 year 7 months 6 days |  |
Restricted Share Units [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Unrecognized compensation costs |  |  |  | $ 1,600,000 |  |
Unrecognized compensation costs, period for recognition |  |  |  | 1 year 4 months 24 days |  |
Deferred Share Units [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Unrecognized compensation costs |  |  |  | $ 0 |  |
Share unit liability |  |  |  | $ 6,300,000 | $ 10,100,000 |

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