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The Company and its Significant Accounting Policies - Schedule of Segment Reporting (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Segment Reporting Information [Line Items] |  |  |
Revenue | $ 836.6 | $ 687.6 | $ 599.4
Depreciation and amortization | 46.4 | 48.4 | 48.2
Total costs and expenses | 771.4 | 678.2 | 595.8
Income from Operations | 65.2 | 9.4 | 3.6
Reportable Segment |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue | 836.6 | 687.6 | 599.4
Performance marketing | 416.9 | 297.4 | 206.5
Brand marketing | 65.1 | 68.6 | 84.4
Personnel-related expenses | 168.1 | 178.2 | 190.0
Share-based compensation expense | 31.9 | 40.1 | 44.3
Capitalized internally developed software costs | (20.4) | (24.0) | (32.4)
Depreciation and amortization | 46.4 | 48.4 | 48.2
Other segment costs and expenses | 63.4 | 69.5 | 54.8
Total costs and expenses | 771.4 | 678.2 | 595.8
Income from Operations | $ 65.2 | $ 9.4 | $ 3.6

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