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Supplemental Information (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Dec. 31, 2020
Quantifying Misstatement in Current Year Financial Statements [Line Items] |  |  |
Asset Impairment Charges | $ 875 | $ 161 |
Impairment of Right-Of-Use Asset | 598 |  |
Goodwill | 669,060 |  | $ 668,211
Income tax expense | 1,302 | 13,500 |
Income before income taxes and equity in earnings of non-consolidated affiliates | $ 11,296 | $ 15,293 |
Effective tax rate (percent) | 11.50% | 88.30% |
Revenues | $ 307,585 | $ 327,742 |
Increase (Decrease) in Accounts Receivable | $ 2,779 | $ (41,148) |

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