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Goodwill and Other Intangible Assets - Future Amortization Expense of Other Intangible Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]    
2020 $ 13,067  
2021 12,901  
2022 12,841  
2023 12,782  
2024 12,548  
Thereafter 74,223  
Net Carrying Amount 138,362 $ 112,092
Electronic Systems    
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]    
2020 9,348  
2021 9,287  
2022 9,288  
2023 9,287  
2024 9,288  
Thereafter 46,520  
Net Carrying Amount 93,018 102,437
Structural Systems    
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]    
2020 3,719  
2021 3,614  
2022 3,553  
2023 3,495  
2024 3,260  
Thereafter 27,703  
Net Carrying Amount $ 45,344 $ 9,655