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Employee Benefits - Narrative (Details) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2024 USD ($) shares | Sep. 30, 2023 USD ($) | Sep. 30, 2024 USD ($) installment shares | Sep. 30, 2023 USD ($) shares | Dec. 31, 2023 USD ($)
Pension Plans, Postretirement and Other Employee Benefits [Line Items] |  |  |  |  |
Healthcare benefit expense, net of employee contributions | $ | $ 8.5 | $ 8.9 | $ 25.5 | $ 25.0 |
Accrued compensation | $ | 68.6 |  | 68.6 |  | $ 59.6
Administration expense related to employee contribution plan | $ | $ 0.7 | 0.6 | $ 2.6 | $ 2.4 |
Share-based awards granted (in shares) | 7,000 |  | 37,000 | 62,000 |
Number of shares surrendered to satisfy tax withholding obligations (in shares) |  |  | 36,000 |  |
2014 Omnibus Incentive Plan |  |  |  |  |
Pension Plans, Postretirement and Other Employee Benefits [Line Items] |  |  |  |  |
Common stock shares available for issuance (in shares) | 1,800,000 |  | 1,800,000 |  |
Common stock shares authorized (in shares) | 2,100,000 |  | 2,100,000 |  |
Performance-Based Stock Awards |  |  |  |  |
Pension Plans, Postretirement and Other Employee Benefits [Line Items] |  |  |  |  |
Share-based awards granted (in shares) |  |  | 35,320 |  |
Liability Performance-Based Stock Awards |  |  |  |  |
Pension Plans, Postretirement and Other Employee Benefits [Line Items] |  |  |  |  |
Share-based awards granted (in shares) |  |  | 4,000 | 8,000 |
Board of Directors |  |  |  |  |
Pension Plans, Postretirement and Other Employee Benefits [Line Items] |  |  |  |  |
Share-based awards granted (in shares) |  |  | 4,000 | 7,000 |
Officer | Performance-Based Stock Awards |  |  |  |  |
Pension Plans, Postretirement and Other Employee Benefits [Line Items] |  |  |  |  |
Share-based awards granted (in shares) |  |  | 67,000 |  |
Officer | Performance-Based Stock Awards | Common Stock |  |  |  |  |
Pension Plans, Postretirement and Other Employee Benefits [Line Items] |  |  |  |  |
Number of equal installments for common stock | installment |  |  | 2 |  |
Cost of sales |  |  |  |  |
Pension Plans, Postretirement and Other Employee Benefits [Line Items] |  |  |  |  |
Workers' compensation expense | $ | $ 5.1 | $ 5.1 | $ 13.8 | $ 15.6 |
Medical IBNR Included in Accrued Compensation |  |  |  |  |
Pension Plans, Postretirement and Other Employee Benefits [Line Items] |  |  |  |  |
Accrued compensation | $ | $ 5.0 |  | $ 5.0 |  | $ 3.9

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