| Fiscal period | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
| Period End Date | 12/31/2025 | 12/31/2024 | 12/31/2023 | 12/31/2022 | 12/31/2021 | 12/31/2020 | 12/31/2019 | 12/31/2018 | 12/31/2017 | 12/31/2016 |
| Revenues | 2,631.55 | 2,423.70 | 2,413.17 | 2,376.73 | 2,256.61 | 2,350.10 | 2,477.92 | 2,331.39 | 2,263.42 | 2,179.49 |
| Total Revenues | 2,631.55 | 2,423.70 | 2,413.17 | 2,376.73 | 2,256.61 | 2,350.10 | 2,477.92 | 2,331.39 | 2,263.42 | 2,179.49 |
| COGS-Operating expenses | 1,968.48 | 1,774.48 | 1,744.23 | 1,663.73 | 1,629.05 | 1,778.33 | 1,860.76 | 1,755.77 | 1,700.50 | 1,650.28 |
| Jena Charge | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Gross Profit | 663.07 | 649.22 | 668.94 | 713.00 | 627.57 | 571.77 | 617.16 | 575.61 | 562.93 | 529.21 |
| Depreciation and amortization | 132.04 | 126.22 | 125.78 | 132.93 | 135.18 | 134.68 | 130.83 | 126.43 | 124.30 | 114.92 |
| Goodwill impairment charge | -- | -- | -- | -- | -- | 21.15 | -- | -- | -- | -- |
| General and administrative expenses | 235.94 | 213.03 | 190.77 | 196.97 | 204.31 | 193.37 | 185.93 | 184.52 | 190.34 | 148.71 |
| Contingent Litigation Reserve | (37.60) | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Operating Income / (Loss) | 257.49 | 309.98 | 352.39 | 383.10 | 288.08 | 222.57 | 300.41 | 264.67 | 248.29 | 265.58 |
| Interest expense | 160.52 | 190.62 | 218.29 | 164.55 | 129.46 | 126.84 | 151.02 | 150.10 | 148.02 | 128.72 |
| Write-off of Deferred Financing Fees from Extinguishment of Debt | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Gain on Sale of UK Joint Venture | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Interest income | 9.08 | 8.79 | 7.79 | 16.83 | 24.01 | 23.07 | 28.93 | 34.76 | 51.68 | 28.50 |
| Other income, net | 5.51 | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Gain (loss) on extinguishment of debt | (8.45) | (86.64) | (8.53) | (37.90) | 4.69 | 5.32 | (4.80) | -- | -- | (15.89) |
| Loss on asset divestiture | 232.38 | (2.91) | 4.69 | 32.33 | 5.50 | -- | -- | -- | -- | -- |
| Pre-Tax Income | 335.49 | 38.59 | 138.05 | 229.82 | 192.82 | 124.13 | 173.53 | 149.32 | 151.94 | 149.48 |
| Federal income taxes: Current | -- | -- | 23.11 | 25.70 | 20.01 | 8.26 | 13.02 | 9.34 | 13.93 | 5.80 |
| Federal income taxes: Deferred | -- | -- | 1.26 | 17.33 | 71.20 | (0.26) | (7.03) | (2.20) | (3.80) | (3.54) |
| State income taxes: Current | -- | -- | 6.14 | 10.42 | 8.56 | 4.15 | 5.09 | 3.05 | 3.34 | 2.76 |
| State income taxes: Deferred | -- | -- | 0.77 | 3.96 | 18.59 | 0.05 | (0.38) | (1.89) | (2.27) | (1.79) |
| Foreign: Deferred | -- | -- | (0.55) | (34.41) | (3.41) | 11.43 | 6.82 | 5.31 | 18.31 | (0.63) |
| Foreign: Current | -- | -- | 4.68 | 39.90 | 7.78 | (3.16) | (0.88) | 0.50 | (11.55) | 5.30 |
| Provision for Income Taxes | 85.72 | 9.40 | 35.40 | 62.90 | 122.73 | 20.46 | 16.65 | 14.12 | 17.96 | 7.90 |
| Minority interest | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Equity in earnings of affiliates | 4.53 | 2.70 | 4.53 | 4.77 | 7.14 | 9.17 | 9.53 | 9.63 | 12.05 | 6.93 |
| Income from Continuing Operations | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Income from Discontinued Operations | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Consolidated net income | 254.31 | 31.90 | 107.18 | 171.69 | 77.23 | 112.83 | 166.41 | 144.83 | 146.02 | 148.50 |
| Net (income)loss attributable to noncontrolling interests | (0.07) | (0.07) | (0.14) | (0.12) | (0.19) | (0.20) | (0.19) | (0.26) | (0.22) | (0.22) |
| Net Income (loss) Available to Common Shareholders | 254.37 | 31.97 | 107.33 | 171.81 | 77.42 | 113.03 | 166.60 | 145.09 | 146.24 | 148.72 |
| EPS (Basic) : Continuing operations | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Earnings Per Share (Basic) - Disc Ops | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Net Earnings Per Share (Basic) | 1.85 | 0.23 | 0.73 | 1.18 | 0.59 | 0.94 | 1.40 | 1.21 | 1.22 | 1.34 |
| EPS (Diluted) : Continuing operations | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Earnings Per Share (Diluted) - Disc Ops | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Net Earnings Per Share (Diluted) | 1.82 | 0.22 | 0.72 | 1.17 | 0.58 | 0.94 | 1.40 | 1.20 | 1.21 | 1.33 |
| Weighted Average Shares Outstanding (Basic) | 137.49 | 131.32 | 121.91 | 121.04 | 120.38 | 119.72 | 119.10 | 120.24 | 120.10 | 111.06 |
| Weighted Average Shares Outstanding (Diluted) | 139.72 | 134.06 | 123.70 | 122.28 | 120.73 | 119.99 | 119.31 | 120.75 | 120.81 | 111.48 |