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Net Income per Share - Computation of Earnings Per Share, Basic (Parenthetical) (Detail) - shares | Nov. 03, 2020 | May 06, 2020 | Mar. 11, 2020 | Dec. 13, 2019 | Aug. 08, 2019 | Nov. 01, 2018
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Earnings Per Share [Abstract] |  |  |  |  |  |
Conversion of Class B Common Stock into Class A Common Stock | 130,000 | 215,000 | 150,000 | 145,000 | 100,000 | 100,000

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- Definition The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4313-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4304-108586 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4332-108586 + Details
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- References No definition available. + Details
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