v3.7.0.1

Subsequent Events - Additional Information (Detail) - $ / shares |  |  | 12 Months Ended
--- | --- | --- | ---
May 09, 2017 | May 04, 2017 | Mar. 31, 2017 | Mar. 31, 2016 | Mar. 31, 2015
Subsequent Event [Line Items] |  |  |  |  |
Stock options granted |  |  | 242,068 | 127,966 | 76,512
Subsequent Event |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Stock options granted | 169,703 |  |  |  |
Subsequent Event | Dividend Declared |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Common Stock cash dividends, per share |  | $ 0.175 |  |  |
Stock option | Subsequent Event |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Vesting period, in years | 3 years |  |  |  |
Restricted Stock Units (RSUs) |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Stock unit grant during period |  |  | 264,305 |  |
Restricted Stock Units (RSUs) | Subsequent Event |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Percent vested | 25.00% |  |  |  |
Vesting period, in years | 4 years |  |  |  |
Stock unit grant during period | 160,313 |  |  |  |
Market Share Unit Number (MSU) |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Stock unit grant during period |  |  | 83,720 |  |
Market Share Unit Number (MSU) | Subsequent Event |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Vesting period, in years | 3 years |  |  |  |
Stock unit grant during period | 60,008 |  |  |  |

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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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- 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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&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://www.xbrl.org/2003/role/presentationRef -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=6415400&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 Percentage of vesting of share-based compensation awards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&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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