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Related Party Transactions - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019 | Dec. 31, 2019
Related Party Transactions [Abstract] |  |  |  |  |
Payment received from affiliates | $ 30,800 | $ 900 | $ 76,100 | $ 1,600 |
Accounts receivable from affiliates | $ 9,934 |  | $ 9,934 |  | $ 35,469

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