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Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract] |  |  |
Operating Lease, Expense | $ 71,000 | $ 52,200 | $ 52,000
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability | 52,000 |  |
Operating Lease, Right-of-Use Asset | 186,800 |  |
Operating Lease, Liability | 195,200 |  |
Operating Lease, Liability, Current | 36,500 |  |
Operating Lease, Liability, Noncurrent | $ 158,700 |  |
Operating Lease, Weighted Average Discount Rate, Percent | 5.60% |  |
Operating Lease, Weighted Average Remaining Lease Term | 7 years |  |
Finance Lease, Right-of-Use Asset | $ 33,800 |  |
Finance Lease, Liability | 33,288 |  |
Finance Lease, Liability, Current | 1,900 |  |
Finance Lease, Liability, Noncurrent | 31,400 |  |
Purchase Commitment, Remaining Minimum Amount Committed | $ 34,000 |  |

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