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v3.21.1

Earnings Per Share and Stock Plans 1 of 2 (Details) - USD ($) | 12 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Mar. 31, 2019 | Mar. 31, 2018
Assumptions: |  |  |  |
Risk-free interest rate | 0.23% | 2.23% | 2.64% |
Dividend yield | 0.90% | 0.68% | 0.52% |
Volatility factor | 38.00% | 37.20% | 35.20% |
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 | 657,814 | 526,794 | 834,777 | 922,450
Weighted-average Exercise Price | $ 27.45 | $ 26.53 | $ 23.52 | $ 21.04
Weighted-average Remaining Contractual Life | 7 years 3 months 14 days | 6 years 11 months 4 days | 7 years 14 days | 7 years 6 months 21 days
Stock Options Exercisable | 268,815 |  |  |
Weighted- average Exercise Price per share | $ 24.41 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value | $ 16,652,000 | $ 1,518 | $ 9,602 | $ 13,654
Stock Options | $10.01 to 20.00 |  |  |  |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |  |
Stock Options Outstanding | 90,811 |  |  |
Weighted-average Exercise Price | $ 15.26 |  |  |
Weighted-average Remaining Contractual Life | 4 years 11 months 1 day |  |  |
Stock Options Exercisable | 90,811 |  |  |
Weighted- average Exercise Price per share | $ 15.26 |  |  |
Stock Options | $20.01 to 30.00 |  |  |  |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |  |
Stock Options Outstanding | 322,668 |  |  |
Weighted-average Exercise Price | $ 25.15 |  |  |
Weighted-average Remaining Contractual Life | 7 years 4 months 28 days |  |  |
Stock Options Exercisable | 116,935 |  |  |
Weighted- average Exercise Price per share | $ 24.81 |  |  |
Stock Options | $30.01 to 40.00 [Member] |  |  |  |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |  |
Stock Options Outstanding | 244,335 |  |  |
Weighted-average Exercise Price | $ 35.01 |  |  |
Weighted-average Remaining Contractual Life | 8 years 7 days |  |  |
Stock Options Exercisable | 61,069 |  |  |
Weighted- average Exercise Price per share | $ 37.25 |  |  |
Long Term Incentive Plans [Member] |  |  |  |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period | 125,150 | 106,792 | 211,932 |

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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. + 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)(2)(iii)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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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 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)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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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 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)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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