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Stock-Based Compensation (Details) | 12 Months Ended
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Dec. 31, 2024 USD ($) director $ / shares shares | Dec. 31, 2023 USD ($) $ / shares shares | Dec. 31, 2022 USD ($) shares
Unrecognized compensation cost and vesting period |  |  |
Unrecognized compensation costs related to unvested stock-based compensation arrangements | $ | $ 24,200,000 |  |
Weighted-average period for recognition of unrecognized stock-based compensation expense | 2 years 2 months 12 days |  |
Other disclosures |  |  |
Shares issued and committed to issue | shares | 22,029 | 14,700 | 16,700
Shares committed to be issued | shares | 21,266 | 9,800 | 9,300
Shares expected to be settled In cash | shares | 763 | 4,900 | 7,400
Stock-based compensation expense recognized in operating expenses | $ | $ (13,112,000) | $ (19,726,000) | $ (12,503,000)
Tax benefit of stock-based compensation expense in provision for income taxes | $ | 3,204,000 | 4,808,000 | 3,133,000
Share-based Payment Arrangement, Expense, after Tax | $ | $ 9,908,000 | $ 14,918,000 | 9,370,000
Weighted average grant date, period | 60 days |  |
Restricted Stock Units |  |  |
Restricted stock unit activity |  |  |
Outstanding at the beginning of the period (in shares) | shares | 378,000 |  |
Awarded (in shares) | shares | 161,000 |  |
Vested (in shares) | shares | (167,000) |  |
Forfeited (in shares) | shares | (36,000) |  |
Outstanding at the end of the period (in shares) | shares | 336,000 | 378,000 |
Outstanding and expected to vest at the end of the period (in shares) | shares | 327,000 |  |
Weighted-Average Exercise Price |  |  |
Outstanding at the beginning of the period (in dollars per share) | $ / shares | $ 102.87 |  |
Awarded (in dollars per share) | $ / shares | 177.60 |  |
Vested (in dollars per share) | $ / shares | 103.64 |  |
Forfeited (in dollars per share) | $ / shares | 116.62 |  |
Outstanding at the end of the period (in dollars per share) | $ / shares | 130.42 | $ 102.87 |
Outstanding and expected to vest at the end of the period (in dollars per share) | $ / shares |  |  |
Aggregate Intrinsic Value |  |  |
Outstanding at the end of the period (in dollars) | $ | $ 55,333,000 | $ 74,850,000 |
Outstanding and expected to vest at end of the period (in dollars) | $ | $ 54,249,000 |  |
Closing price per share (in dollars per share) | $ / shares | $ 165.83 |  |
Total intrinsic value of awards vested (in dollars) | $ | $ 31,800,000 | $ 20,300,000 | 25,600,000
Weighted-Average Exercise Price |  |  |
Outstanding at the beginning of the period (in dollars per share) | $ / shares | $ 102.87 |  |
Forfeited (in dollars per share) | $ / shares | 116.62 |  |
Outstanding at the end of the period (in dollars per share) | $ / shares | $ 130.42 | $ 102.87 |
Aggregate Intrinsic Value |  |  |
Outstanding at the end of the period (in dollars) | $ | $ 55,333,000 | $ 74,850,000 |
Other disclosures |  |  |
Stock-based compensation expense recognized in operating expenses | $ | $ (800,000) |  |
Phantom Share Units (PSUs) |  |  |
Other disclosures |  |  |
Vesting period | 3 years |  |
2011 Plan | Non-Qualified Stock Options |  |  |
Stock-Based Compensation |  |  |
Maximum common stock shares that may be issued under plan | shares | 16,300,000 |  |
Stock Bonus Plan | Restricted Stock Units |  |  |
Aggregate Intrinsic Value |  |  |
Total intrinsic value of awards vested (in dollars) | $ | $ 3,700,000 | $ 1,900,000 | $ 1,500,000
Independent directors | Restricted Stock Units |  |  |
Aggregate Intrinsic Value |  |  |
Number Of Directors | director | 7 |  |
Other disclosures |  |  |
Deferred Compensation Arrangement with Individual, Allocated Share-based Compensation Expense | $ | $ 900,000 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted | shares | 4,692 |  |
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | $ / shares | $ 173.89 |  |
Employees | Restricted Stock Units |  |  |
Restricted stock unit activity |  |  |
Awarded (in shares) | shares | 156,000 |  |
Weighted-Average Exercise Price |  |  |
Awarded (in dollars per share) | $ / shares | $ 177.73 |  |
Other disclosures |  |  |
Vesting period | 4 years |  |

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