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Significant Accounting Policies (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Accounting Policies [Abstract] |  |  |
Allowance for doubtful accounts | $ 11,700,000 | $ 6,100,000 |
Significant Accounting Policies [Line Items] |  |  |
Fixed assets, accumulated depreciation | (114,970,000) | (104,301,000) |
Defined Contribution Plan, Cost | 24,500,000 | 19,700,000 | $ 20,500,000
Accounts Receivable, Sale | 501,300,000 | 435,600,000 | 393,900,000
Trade Receivables Collected and Due to Third Party under Receivable Purchase Agreement | 21,200,000 | 19,500,000 | 1,800,000
Trade Receivable Fees paid to Third Party under Receivable Purchase Agreement | $ 5,600,000 | $ 5,800,000 | 5,400,000
Percentage of revenue from largest client | 4.00% | 3.00% |
Total periodic benefit income | $ 700,000 | $ 200,000 | 300,000
Settlement (gain) | $ 300,000 |  |
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate | 5.75% |  |
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-Term Rate of Return on Plan Assets | 7.00% |  |
Defined Benefit Plan, Benefit Obligation | $ 25,100,000 | 24,800,000 |
Defined Benefit Plan, Plan Assets, Amount | 22,700,000 | 23,400,000 |
Liability, Defined Benefit Plan, Noncurrent | $ 2,300,000 | $ 1,300,000 |
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate | 5.23% | 5.75% |
Target Allocation | 100.00% |  |
Actual Allocation | 100.00% |  |
Defined Benefit Plan, Accumulated Other Comprehensive Income Net Settlement and Curtailment gain (loss), net of tax | $ 4,300,000 | $ 6,800,000 |
2026 | 1,800,000 |  |
2027 | 1,700,000 |  |
2028 | 1,700,000 |  |
2029 | 1,900,000 |  |
2030 | 1,900,000 |  |
Thereafter | 9,200,000 |  |
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year | 600,000 |  |
Defined Benefit Plan, Plan Assets, Contributions by Employer | 700,000 |  |
Revenues | 2,909,000,000 | 2,841,216,000 | 2,527,177,000
Marketing and advertising services | Director |  |  |
Significant Accounting Policies [Line Items] |  |  |
Revenues | $ 6,300,000 | $ 4,900,000 | $ 0
Minimum |  |  |
Significant Accounting Policies [Line Items] |  |  |
Property, plant and equipment, useful life | 3 years |  |
Maximum |  |  |
Significant Accounting Policies [Line Items] |  |  |
Property, plant and equipment, useful life | 10 years |  |

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