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v3.19.1

Subsequent Events (Details) - USD ($) |  |  |  | 12 Months Ended |
--- | --- | --- | --- | --- | ---
May 06, 2019 | May 07, 2018 | Aug. 01, 2017 | Mar. 31, 2019 | Mar. 31, 2018 | Mar. 31, 2017 | May 08, 2019
Subsequent Event [Line Items] |  |  |  |  |  |  |
Options, grant date fair value (in USD per share) |  |  |  | $ 29.46 | $ 56.11 | $ 55.86 |
Options granted (in shares) |  |  |  | 294,500 | 182,800 | 264,300 |
Performance Units |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Common stock units granted in period (in shares) |  | 103,406 |  |  |  |  |
Restricted Stock Units (RSUs) |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Common stock units granted in period (in shares) |  | 100,399 | 3,779 | 226,400 | 105,800 | 68,400 |
Options granted (in shares) |  |  | 1 |  |  |  |
Award vesting period |  |  |  | 3 years |  |  |
Stock Options |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Options granted (in shares) |  | 294,484 | 1 |  |  |  |
Subsequent Event |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Stock repurchase program, authorized amount |  |  |  |  |  |  | $ 50,000,000.0
Options, grant date fair value (in USD per share) | $ 30.56 |  |  |  |  |  |
Subsequent Event | Performance Units |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Common stock units granted in period (in shares) | 98,645 |  |  |  |  |  |
Award vesting period | 3 years |  |  |  |  |  |
Subsequent Event | Restricted Stock Units (RSUs) |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Vesting rights (as percent) | 33.30% |  |  |  |  |  |
Common stock units granted in period (in shares) | 89,284 |  |  |  |  |  |
Award vesting period | 3 years |  |  |  |  |  |
Subsequent Event | Stock Options |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Expiration period | 10 years |  |  |  |  |  |
Vesting rights (as percent) | 33.30% |  |  |  |  |  |
Options granted (in shares) | 281,486 |  |  |  |  |  |
Award vesting period | 3 years |  |  |  |  |  |

X
- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, 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 -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=109197908&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=109197908&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 Period from grant date that an equity-based award expires, 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 -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=109197908&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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