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Distribution Agreements, Net - Additional Information (Detail) - Distribution agreements, net
12 Months Ended
Dec. 31, 2020
USD ($)
Finite-Lived Intangible Assets [Line Items]  
Impairment of distribution agreements, net $ 0
Amortization expense for 2021 24,500,000
Amortization expense for 2022 24,500,000
Amortization expense for 2023 24,500,000
Amortization expense for 2024 24,500,000
Amortization expense for 2025 $ 24,500,000
Minimum  
Finite-Lived Intangible Assets [Line Items]  
Estimated useful life 10 years
Maximum  
Finite-Lived Intangible Assets [Line Items]  
Estimated useful life 40 years