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Commitments and Loss Contingencies - Schedule of Future Minimum Purchases Remaining under Agreements (Detail)
$ in Thousands
Dec. 31, 2019
USD ($)
Unrecorded Unconditional Purchase Obligation [Abstract]  
2020 $ 36,332
2021 6,304
2022 2,338
2023 525
2024 0
2025 and thereafter 0
Total minimum payments required $ 45,499