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Supplemental Cash Flow Information (Detail) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Non-cash investing and financing activities: |  |
Fixed assets acquired with accounts payable or accrued liabilities | $ 24,121 | $ 13,113
Cash paid for amounts included in the measurement of lease liabilities: |  |
Operating cash flows from operating leases | 6,236 | 3,820
Financing cash flows from finance leases | 0 | 2,190
Right-of-use assets obtained in exchange for lease obligations: |  |
Operating leases | 21,602 | 15,984
Finance leases | $ 0 | $ 51,064

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