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Stock Option Transactions (Detail) | 9 Months Ended
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Oct. 30, 2021 $ / shares shares
Number of Shares |  |
Options Outstanding at Beginning of Period | shares | 1,346,775 |
Options Granted | shares | 209,244 |
Options Exercised | shares | (346,436) | [1]
Options Forfeited | shares | (36,961) |
Options Outstanding at End of Period | shares | 1,172,622 |
Weighted Average Exercise Price Per Share |  |
Options Outstanding at Beginning of Period | $ / shares | $ 133.86 |
Options Granted | $ / shares | 315.81 |
Options Exercised | $ / shares | 91.24 | [1]
Options Forfeited | $ / shares | 192.20 |
Options Outstanding at End of Period | $ / shares | $ 177.08 |
[1] | Options exercised during the nine month period ended October 30, 2021 had a total intrinsic value of $75.0 million.

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- Definition The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Weighted average price at which option holders acquired shares when converting their stock options into shares. + References No definition available. + Details
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