Annual report pursuant to Section 13 and 15(d)

Intangible Assets - Narrative (Details)

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Intangible Assets - Narrative (Details) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Finite-Lived Intangible Assets      
Amortization expense for intangibles $ 17,600,000 $ 19,400,000 $ 12,300,000
Intangible asset impairment charge   $ 0 $ 0
Aerospace      
Finite-Lived Intangible Assets      
Intangible asset impairment charge $ 6,200,000