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Supplemental Cash Flow Information Related to Leases (Detail) - USD ($) $ in Thousands | 6 Months Ended
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Jun. 30, 2021 | Jun. 30, 2020
Cash paid for amounts included in the measurement of lease liabilities: |  |
Operating cash flows from operating leases | $ 59,818 | $ 56,102
Operating cash flows from finance leases | 2,352 | 966
Financing cash flows from finance leases | 1,589 | 1,267
Right-of-use assets obtained in exchange for lease obligations: |  |
Operating leases | 12,322 | $ 37,780
Finance leases | $ 7,690 |

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