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Mergers and Acquisitions (Business Acquisition, Pro Forma Information) (Details) - Silicone Engineering Ltd. - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2021
Subsequent Event [Line Items] |  |
Net sales | $ 248,679 | $ 733,404
Net income | $ 26,419 | $ 88,271

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