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Supplemental Cash Flow Information (Detail) - USD ($) $ in Thousands | 6 Months Ended
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Jun. 30, 2025 | Jun. 30, 2024
Non-cash investing and financing activities: |  |
Acquisition of property, plant and equipment in accounts payable and accrued liabilities | $ 12,995 | $ 16,657
Final settlement of prior year stock repurchase forward contract | 0 | 50,000
Cash paid for amounts included in the measurement of lease liabilities: |  |
Operating cash flows from operating leases | 19,323 | 19,643
Right-of-use assets obtained in exchange for lease obligations: |  |
Operating leases | $ 12,259 | $ 22,820

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