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Supplemental Information (Details) - USD ($) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2020 | Mar. 31, 2019 | Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |  |
Accrued media | $ 213,915,000 |  | $ 216,931,000
Goodwill | 725,390,000 |  | $ 740,674,000
Indefinite-lived intangible assets acquired | $ 14,600 |  |
Finite-lived intangible assets, remaining amortization period | 5 years |  |
Income tax expense | $ 13,500,000 | $ 748,000 |
Income (loss) before income taxes and equity in earnings of non-consolidated affiliates | $ 15,294,000 | $ 981,000 |
Effective tax rate (percent) | 76.20% | 88.26991% |

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