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Basis of Presentation and Summary of Significant Accounting Policies - Operating Leases (Detail) - USD ($) $ in Thousands |  | 12 Months Ended |
--- | --- | --- | ---
Sep. 30, 2021 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Jan. 01, 2019
New Accounting Pronouncements Or Change In Accounting Principle [Line Items] |  |  |  |  |
Change in accounting principle, accounting standards update, adopted | true | true | true | true |
Change in accounting principle, accounting standards update, adoption date |  |  | Jan. 01, 2020 | Jan. 01, 2019 |
Accounting Standards Update [Extensible List] | us-gaap:AccountingStandardsUpdate202004Member | us-gaap:AccountingStandardsUpdate201912Member | us-gaap:AccountingStandardsUpdate201613Member | us-gaap:AccountingStandardsUpdate201602Member |
Operating lease, right-of-use assets |  | $ 234,091 | $ 248,143 |  | $ 41,000
Operating lease, liabilities |  | $ 284,598 |  |  | $ 47,000
Lease term description |  | lease terms of up to 10 years, some of which include options to extend the leases for up to five years, and some of which include options to terminate the leases within one year with proper notification. |  |  |
Remaining lease term |  | 10 years |  |  |
Lessee, operating lease, existence of option to extend |  | true |  |  |
Options to extend the leases |  | up to five years |  |  |
Lessee, operating lease, existence of option to terminate |  | true |  |  |
Options to terminate the leases |  | within one year |  |  |
Maximum |  |  |  |  |
New Accounting Pronouncements Or Change In Accounting Principle [Line Items] |  |  |  |  |
Initial term |  | 12 months |  |  |

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- Definition Short-term leases term excluded from calculation of right of use of assets and lease liabilities. + References No definition available. + Details
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