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Basis of Presentation (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Error Corrections and Prior Period Adjustments Restatement [Line Items]    
Cost of goods sold $ 565,604 $ 496,827
Income before income taxes and equity in net income of unconsolidated investments 123,294 115,473
Income tax expense 22,107 $ 18,442
Out-of-period adjustment    
Error Corrections and Prior Period Adjustments Restatement [Line Items]    
Income tax expense $ 7,900