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Goodwill and Other Intangible Assets - Intangibles Narrative (Details)
12 Months Ended
Dec. 31, 2020
USD ($)
Trade Names [Member] | Aerospace [Member]  
Indefinite-lived Intangible Assets [Line Items]  
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) $ 7,800,000