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Share-Based Payments - Narrative (Details) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Apr. 30, 2023 shares | Dec. 31, 2024 USD ($) measure $ / shares shares | Dec. 31, 2023 USD ($) $ / shares shares | Dec. 31, 2022 USD ($) $ / shares shares
Restricted Stock Awards |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Award cliff vesting period |  | 4 years |  |
Granted (in dollars per share) | $ / shares |  | $ 85.25 | $ 68.03 | $ 59.95
Fair value of awards vested |  | $ 5,100,000 | $ 3,100,000 | $ 3,000,000.0
Unrecognized compensation costs |  | $ 3,700,000 |  |
Unrecognized compensation costs, period of recognition |  | 1 year 6 months |  |
Restricted Stock Awards | Minimum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Award vesting period |  | 3 years |  |
Restricted Stock Awards | Maximum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Award vesting period |  | 4 years |  |
Stock Performance Awards |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Award vesting period |  | 3 years |  |
Granted (in dollars per share) | $ / shares |  | $ 94.45 | $ 61.97 | $ 54.91
Fair value of awards vested |  | $ 12,300,000 | $ 5,300,000 | $ 5,100,000
Unrecognized compensation costs |  | $ 500,000 |  |
Unrecognized compensation costs, period of recognition |  | 7 months 24 days |  |
Number of performance measures | measure |  | 2 |  |
Expected volatility rate measurement period |  | 5 years |  |
Stock Performance Awards | Minimum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Percentage of target amount as actual payment (as a percent) |  | 0.00% |  |
Stock Performance Awards | Maximum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Percentage of target amount as actual payment (as a percent) |  | 150.00% |  |
The 1999 Employee Stock Purchase Plan |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based payment awards, number of shares authorized (in shares) | shares |  | 1,400,000 |  |
Discount from market price rate (as a percent) |  | 15.00% |  |
Purchase period |  | 6 months |  |
Maximum number of shares available to be purchased per participant (in shares) | shares |  | 2,000 |  |
Maximum employee subscription amount |  | $ 25,000 |  |
Shares holding period |  | 18 months |  |
Share-based payment arrangement, expense |  | $ 400,000 | $ 300,000 | $ 300,000
Shares issued under the plan (in shares) | shares |  | 31,252 | 26,348 | 26,420
Number of shares available for grant (in shares) | shares |  | 206,115 |  |
The 1999 Employee Stock Purchase Plan | Minimum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Employee monthly withholding amounts |  | $ 10 |  |
The 1999 Employee Stock Purchase Plan | Maximum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Employee monthly withholding amounts |  | 2,000 |  |
The 2023 Stock Incentive Plan |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based payment awards, number of shares authorized (in shares) | shares | 979,891 |  |  |
Share-based payment arrangement, expense |  | $ 9,100,000 | $ 7,400,000 | $ 6,600,000
Number of shares available for grant (in shares) | shares |  | 828,761 |  |
Number of additional shares authorized (in shares) | shares | 500,000 |  |  |
Share-based payment arrangement, expense, tax benefit |  | $ 2,700,000 | $ 1,600,000 | $ 1,700,000

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