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Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Intangible Assets [Line Items]    
Goodwill accumulated impairment loss $ 0  
Amortization expense of intangible assets $ 13,800,000 $ 5,700,000
Weighted Average [Member]    
Intangible Assets [Line Items]    
Weighted average life of definite lived intangible assets 10 years 7 days