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Supplemental Disclosures of Cash Flow Information - Additional Information (Detail) - Qualified Contributory Savings and Thrift 401(k) Plan [Member] - USD ($) $ in Millions | 9 Months Ended
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Sep. 30, 2022 | Sep. 30, 2021
Defined Benefit Plan Disclosure [Line Items] |  |
Matching contributions by employer, percentage | 100.00% |
Percentage of eligible compensation for matching contributions by employer | 5.00% |
Matching contributions vesting schedule | 5 years |
Contribution expense to plan | $ 59.8 | $ 51.8
Employer match on eligible compensation | 5.00% |
Increased net cash provided by operating activities |  | 69.1
Decreased net cash used by investing activities |  | $ 69.1

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- Definition Defined benefit plan percentage of eligible compensation for matching contributions by employer. + References No definition available. + Details
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- Definition Amount of cost for defined contribution plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942 + Details
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- Details
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