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v3.20.1

Subsequent Events (Details) - $ / shares |  |  |  |  | 12 Months Ended
--- | --- | --- | --- | --- | ---
May 04, 2020 | Jul. 30, 2019 | May 13, 2019 | May 06, 2019 | Mar. 31, 2020 | Mar. 31, 2019 | Mar. 31, 2018
Subsequent Event [Line Items] |  |  |  |  |  |  |
Granted (in shares) |  |  |  |  | 302,700 | 294,500 | 182,800
Performance Units |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Granted (in shares) |  |  |  | 98,644 |  |  |
Restricted Stock Units (RSUs) |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Granted (in shares) |  | 4,183 | 7,287 | 89,286 | 220,300 | 226,400 | 105,800
Stock Options |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Granted (in shares) |  |  | 21,194 | 281,487 |  |  |
Award grant exercise price (in dollars per share) |  |  | $ 30.19 | $ 30.56 |  |  |
Subsequent Event | Performance Units |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Granted (in shares) | 79,070 |  |  |  |  |  |
Award vesting period | 3 years |  |  |  |  |  |
Subsequent Event | Restricted Stock Units (RSUs) |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Granted (in shares) | 73,637 |  |  |  |  |  |
Award vesting period | 3 years |  |  |  |  |  |
Vesting rights (as percent) | 33.30% |  |  |  |  |  |
Subsequent Event | Restricted Stock Units (RSUs) | Director |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Granted (in shares) | 907 |  |  |  |  |  |
Award vesting period | 1 year |  |  |  |  |  |
Subsequent Event | Stock Options |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Granted (in shares) | 249,874 |  |  |  |  |  |
Award vesting period | 3 years |  |  |  |  |  |
Vesting rights (as percent) | 33.30% |  |  |  |  |  |
Award term | ten |  |  |  |  |  |
Award grant exercise price (in dollars per share) | $ 39.98 |  |  |  |  |  |

X
- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + 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 (a)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target 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)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The grant-date intrinsic value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + 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 (d)(1) -URI http://asc.fasb.org/extlink&oid=116856206&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 Description of terms of award under share-based payment arrangement. + 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 (a) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Percentage of vesting of award under share-based payment arrangement. + 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 (a)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
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