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Stock-Based Compensation and Stock Options - Stock Options (Detail) - $ / shares | 3 Months Ended
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Jun. 30, 2025 | Jun. 30, 2024
Share-Based Payment Arrangement [Abstract] |  |
Options outstanding, beginning balance, Shares | 1,185,727 | 1,469,181
Options granted, Shares | 45,500 | 44,250
Options exercised, Shares | (54,889) | (98,835)
Options cancelled/forfeited, Shares | (1,945) | (7,095)
Options outstanding, ending balance, Shares | 1,174,393 | 1,407,501
Options outstanding, beginning balance, Weighted Average Exercise Price | $ 51.07 | $ 43.13
Options granted, Weighted Average Exercise Price | 110.03 | 90.08
Options exercised, Weighted Average Exercise Price | 31.55 | 31.79
Options cancelled/forfeited, Weighted Average Exercise Price | 73.67 | 55.13
Options outstanding, ending balance, Weighted Average Exercise Price | $ 54.23 | $ 45.34

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- Definition For presentations that combine terminations, 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 or that expired. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Weighted average price of options that were either forfeited or expired. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Gross number of share options (or share units) granted during the period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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