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Debt - Schedule of Long Term Debt (Detail) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Debt Instrument [Line Items]    
Long term debt $ 871,667 $ 343,842
Term Loan Facility, Net [Member]    
Debt Instrument [Line Items]    
Long term debt 871,573 343,756
Loans Due Through March 2020 and other debt [Member] | Austrian [Member]    
Debt Instrument [Line Items]    
Long term debt $ 94 $ 86