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v3.20.4

Segment and Geographic Area Information (Schedule Of Net Sales And Operating Profit By Segment) (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 USD ($) | Sep. 30, 2020 USD ($) | Jun. 30, 2020 USD ($) | Mar. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Sep. 30, 2019 USD ($) | Jun. 30, 2019 USD ($) | Mar. 31, 2019 USD ($) | Dec. 31, 2020 USD ($) customer | Dec. 31, 2019 USD ($) customer | Dec. 31, 2018 USD ($) customer
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 527,781 | $ 512,869 | $ 410,864 | $ 559,417 | $ 534,445 | $ 555,817 | $ 563,417 | $ 536,616 | $ 2,010,931 | $ 2,190,295 | $ 2,289,675
Segment operating profit |  |  |  |  |  |  |  |  | 311,802 | 337,321 | 292,674
Corporate, general, and administrative expenses |  |  |  |  |  |  |  |  | (142,863) | (148,083) | (152,400)
Interest and financing expenses, net |  |  |  |  |  |  |  |  | (26,328) | (29,241) | (26,723)
Other income (expense), net |  |  |  |  |  |  |  |  | 45,813 | 23,510 | 24,334
Income before income tax expense |  |  |  |  |  |  |  |  | $ 331,287 | $ 331,590 | $ 290,285
Number of customers that exceeded threshold percentage | customer |  |  |  |  |  |  |  |  | 0 | 0 | 0
Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Segment operating profit |  |  |  |  |  |  |  |  | $ 333,141 | $ 357,666 | $ 307,763
Operating Segments [Member] | Petroleum Additives [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 2,001,567 | 2,175,904 | 2,280,803
Segment operating profit |  |  |  |  |  |  |  |  | 333,241 | 359,228 | 311,019
Operating Segments [Member] | All Other [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 9,364 | 14,391 | 8,872
Segment operating profit |  |  |  |  |  |  |  |  | (100) | (1,562) | (3,256)
Operating Segments [Member] | Lubricant additives [Member] | Petroleum Additives [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 1,686,649 | 1,778,473 | 1,870,803
Operating Segments [Member] | Fuel additives [Member] | Petroleum Additives [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 314,918 | 397,431 | 410,000
Corporate [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Corporate, general, and administrative expenses |  |  |  |  |  |  |  |  | (21,744) | (20,345) | (19,651)
Interest and financing expenses, net |  |  |  |  |  |  |  |  | (26,328) | (29,241) | (26,723)
Other income (expense), net |  |  |  |  |  |  |  |  | $ 46,218 | $ 23,510 | $ 28,896

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