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Summary of Significant Accounting Policies - Supplementary Information of Consolidated Statements of Cash Flows (Detail) - USD ($) $ in Thousands | 6 Months Ended
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Jun. 30, 2020 | Jun. 30, 2019
Cash payments for: |  |
Interest payments | $ 90,824 | $ 56,430
Income tax payments |  | 2
Non-cash investing activities include: |  |
Decrease in accrued capital expenditures | 29,078 | $ 4,209
Non-cash financing activities include: |  |
Retirement of debt in exchange for common stock | (4,151) |
Issuance of common stock in exchange for debt | $ 5,012 |

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