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Summary Of Supplemental Cash Flow Information Related to Leases (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Cash paid for amounts included in the measurement of lease liabilities: |  |
Operating cash flows for the measurement of operating lease liabilities | $ 80,921 | $ 75,357
Operating lease ROU assets obtained in exchange for operating lease obligations | $ 59,093 | $ 290,422

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- Definition Amount of increase in right-of-use asset obtained in exchange for operating lease liability. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=121568110&loc=SL77918982-209971 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(2) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980 + Details
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Balance Type: | debit
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- Definition Cash paid for lease liabilities + References No definition available. + Details
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Period Type: | duration

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- Definition It represents of operating cash out flows from operating leases + References No definition available. + Details
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