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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(iii)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over 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 (f)(2)(ii)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(iv)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ References

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- Definition

Number of options outstanding, including both vested and non-vested options.

+ 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)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(ii)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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- Definition

Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 718
-SubTopic 10
-Subparagraph (e)(1)
-Name Accounting Standards Codification
-Paragraph 2
-Section 50
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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Earnings per Share and Stock Plans - Stock Option Information (Details) - $ / shares	12 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Assumptions:
Risk-free interest rate	4.03%	4.76%	4.28%
Dividend yield	1.59%	0.62%	0.77%
Volatility factor	49.20%	34.20%	33.60%
Expected life	5 years 6 months	5 years 6 months	5 years 6 months
Stock Options
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Stock options outstanding (in shares)	1,604,951	1,253,626	1,193,840	975,171
Weighted-average exercise price (in dollars per share)	$ 31.82	$ 36.38	$ 35.37	$ 34.54
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	6 years 1 month 13 days	5 years 11 months 26 days	6 years 11 months 4 days	7 years 1 month 17 days
Stock options exercisable (in shares)	995,139
Weighted- average exercise price per share (in dollars per share)	$ 35.61
Stock Options \| $10.01 to 20.00
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Stock options outstanding (in shares)	449,677
Weighted-average exercise price (in dollars per share)	$ 17.32
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	8 years 1 month 2 days
Stock options exercisable (in shares)	50,006
Weighted- average exercise price per share (in dollars per share)	$ 15.16
Stock Options \| $20.01 to 30.00
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Stock options outstanding (in shares)	130,581
Weighted-average exercise price (in dollars per share)	$ 25.11
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	2 years 9 months 14 days
Stock options exercisable (in shares)	130,581
Weighted- average exercise price per share (in dollars per share)	$ 25.11
Stock Options \| $30.01 to $40.00
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Stock options outstanding (in shares)	713,910
Weighted-average exercise price (in dollars per share)	$ 34.61
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	5 years 4 months 20 days
Stock options exercisable (in shares)	616,226
Weighted- average exercise price per share (in dollars per share)	$ 34.36
Stock Options \| $40.01 to $50.00
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Stock options outstanding (in shares)	175,033
Weighted-average exercise price (in dollars per share)	$ 45.49
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	7 years 8 months 4 days
Stock options exercisable (in shares)	62,741
Weighted- average exercise price per share (in dollars per share)	$ 45.75
Stock Options \| $50.01 to $60.00
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Stock options outstanding (in shares)	135,750
Weighted-average exercise price (in dollars per share)	$ 54.26
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	4 years 7 months 6 days
Stock options exercisable (in shares)	135,585
Weighted- average exercise price per share (in dollars per share)	$ 54.26